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Artículos de revistas sobre el tema "Polyiodides"

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Publicado: 10 de marzo de 2023

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1

Kornilov, A. D., M. S. Grigoriev y E. V. Savinkina. "Comparison of the rare earth complexes iodides and polyiodides with biuret". Fine Chemical Technologies 17, n.º 2 (1 de junio de 2022): 172–81. http://dx.doi.org/10.32362/2410-6593-2022-17-2-172-181.

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Objectives. Currently, several hundred polyiodide compounds have been synthesized and structurally characterized, but so far, no formation patterns for certain polyiodide ions have been revealed. The purpose of this work is to continue the search for formation regularities of polyiodides, including polyiodides of lanthanide complexes.Methods. Iodide and polyiodide of samarium complexes with biuret (BU), [Sm(BU)4]I3·BU·2H2O and [Sm(BU)4][I5][I]2, were first synthesized and characterized by X-ray diffraction analysis and infrared spectroscopy, respectively.Results. The obtained compounds complement the row of isostructural lanthanide (La–Gd) complexes. Structures of corresponding iodides and polyiodides were compared in detail. Both types of the compounds contain complex cations of the same composition; however, their structures differ significantly. The central atom coordination polyhedron can be described as a distorted square antiprism and a distorted dodecahedron, respectively. Even greater differences are observed in the outer sphere of complex compounds. The iodide compound crystals contain uncoordinated iodide ions, a biuret molecule and two water molecules. In the polyiodide compound, cations together with isolated I– ions form a three-dimensional framework with the channels, in which linear I5– ions are united in infinite linear chains by weak interactions.Conclusions. The replacement of an iodide ion with a polyiodide ion in complex compounds of lanthanides with BU leads to changes in both the inner sphere and the outer sphere of the cation complex, including the supramolecular level. The presence of iodine atom infinite linear chains in polyiodides allows expecting the presence of anisotropic electrical conductivity along this direction.
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2

Deplano, Paola, Francesco A. Devillanova, John R. Ferraro, Francesco Isaia, Vito Lippolis y Maria Laura Mercuri. "On the Use of Raman Spectroscopy in the Characterization of Iodine in Charge-Transfer Complexes". Applied Spectroscopy 46, n.º 11 (noviembre de 1992): 1625–29. http://dx.doi.org/10.1366/0003702924926880.

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FT-Raman spectra of some polyiodides and of a series of D · I2 charge-transfer complexes (where D is a molecule containing the thione or selone groups as donors), all characterized by x-ray diffraction, are reported. For the adducts with the thione compounds, which can be considered weak or medium-weak complexes, an empirical linear correlation between the frequency of the v(I-I) stretching vibrations and the d(I-I) bond distances has been found. Some polyiodides show FT-Raman spectra that are indistinguishable with respect to those displayed by the neutral complexes of weak or medium-weak strength; in such cases, the polyiodide can be regarded as a diiodine molecule, perturbed by an I n ( n = 1,3,…) donor. Polyiodides of this type show Raman absorptions falling in the linear correlation.
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3

Yushina, Irina D., Boris A. Kolesov y Ekaterina V. Bartashevich. "Raman spectroscopy study of new thia- and oxazinoquinolinium triodides". New Journal of Chemistry 39, n.º 8 (2015): 6163–70. http://dx.doi.org/10.1039/c5nj00497g.

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New polyiodides of thia- and oxa-zinoquinolinium derivatives were characterized using Raman spectroscopy and periodic 3D calculations of the Raman intensities. Polarized Raman spectra of the oriented crystals revealed the features of spatial organization in the polyiodide-anion chains.
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4

Savastano, Matteo, Valeria Monini, Carla Bazzicalupi y Antonio Bianchi. "Bidimensional Polyiodide Netting Stabilized by a Cu(II) Macrocyclic Complex". Inorganics 10, n.º 1 (13 de enero de 2022): 12. http://dx.doi.org/10.3390/inorganics10010012.

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Iodine-dense polyiodide phases are interesting materials for a number of potential uses, including batteries and solid-state conductors. The incorporation of transition metal cations is considered a promising way to enhance the stability, tune the properties, and influence the architecture of polyiodides. However, several interesting metals, including Cu(II), may suffer redox processes, which generally make them not compatible with the I2/I− redox couple. Herein L, a simple derivative of cyclen, is proposed as a Cu(II) ligand capable of protecting the +2 oxidation state of the metal even in the presence of polyiodides. With a step by step approach, we report the crystal structure of free L; then we present spectrophotometric verification of Cu(II) complex stability, stoichiometry, and formation kinetic in DMF solution, together with Cu(II) binding mode elucidation via XRD analysis of [Cu(L)Cl]ClO4∙CH3CN crystals; afterwards, the stability of the CuL complex in the presence of I− is demonstrated in DMF solution, where the formation of a Cu:L:I− ternary complex, rather than reduction to Cu(I), is observed; lastly, polyiodide crystals are prepared, affording the [Cu(L)I]2I3I5 crystal structure. This layered structure is highly peculiar due to its chiral arrangement, opening further perspective for the crystal engineering of polyiodide phases.
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5

Poreba, Tomasz, Gaston Garbarino, Davide Comboni y Mohamed Mezouar. "Deformation of polyiodides in Cs2I8 crystals at high pressure". Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 77, n.º 6 (18 de noviembre de 2021): 934–39. http://dx.doi.org/10.1107/s2052520621010192.

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Dicaesium octaiodide is composed of layers of zigzag polyiodide units (I8 2−) intercalated with caesium cations. Each I8 2− unit is built of two triiodides bridged with one diiodine molecules. This system was subjected to compression up to 5.9 GPa under hydrostatic conditions. Pressure alters the supramolecular architecture around I8 2−, leading to bending of the triiodide units away from their energetically preferred geometry (D ∞h). Short I2...I3 − contacts compress significantly, reaching lengths typical for the covalently bonded polyiodides. Unlike in reported structures at ambient conditions, pressure-induced catenation proceeds without symmetrization of the polyiodides, pointing to a different electron-transfer mechanism. The structure is shown to be half as compressible [B0 = 12.9 (4) GPa] than the similar CsI3 structure. The high bulk modulus is associated with higher I—I connectivity and a more compact cationic net, than in CsI3. The small discontinuity in the compressibility trend around 3 GPa suggests formation of more covalent I—I bonds. The potential sources of this discontinuity and its implication on the electronic properties of Cs2I8 are discussed.
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6

Neuse, Eberhard W. y Mohamed S. Loonat. "Ferricenium polyiodides". Journal of Organometallic Chemistry 286, n.º 3 (mayo de 1985): 329–41. http://dx.doi.org/10.1016/0022-328x(85)80049-8.

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7

Bailey, R. D. y W. T. Pennington. "Tetramethylpyrazinium polyiodides". Acta Crystallographica Section B Structural Science 51, n.º 5 (1 de octubre de 1995): 810–15. http://dx.doi.org/10.1107/s0108768194011778.

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8

Tebbe, K. F. y R. Buchem. "Novel ferricenium polyiodides". Acta Crystallographica Section A Foundations of Crystallography 52, a1 (8 de agosto de 1996): C332. http://dx.doi.org/10.1107/s0108767396086230.

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9

Savastano, Matteo, Carla Bazzicalupi, Cristina Gellini y Antonio Bianchi. "Genesis of Complex Polyiodide Networks: Insights on the Blue Box/I−/I2 Ternary System". Crystals 10, n.º 5 (9 de mayo de 2020): 387. http://dx.doi.org/10.3390/cryst10050387.

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The Stoddart’s blue box (BB) (cyclobis(paraquat-p-phenylene))/iodide binary system was recently demonstrated to give rise to porous three-dimensional networks which can hardly be classified as common XOF-type materials (X = M, C, S, i.e., metal, covalent, or supramolecular organic frameworks), leading to the definition of permutable organized frameworks (POFs). The ternary BB/iodide/iodine system was reported to generate pentaiodide-based structures constituted by the most complex interlocked polyiodides so far isolated (up to an infinite supramolecular pseudopolyrotaxane with a poly[3]catenane axle). The missing link, i.e., the XRD structure of the BB/triiodide complex, is herein reported: structural similarities and novel Raman evidence, opening perspectives in the genesis of solid-state BB-based complex polyiodide networks from solution.
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10

Edis, Zehra y Samir Haj Bloukh. "Antimicrobial V-Shaped Copper(II) Pentaiodide: Insights to Bonding Pattern and Susceptibility". Molecules 27, n.º 19 (29 de septiembre de 2022): 6437. http://dx.doi.org/10.3390/molecules27196437.

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Antimicrobial resistance (AMR) is a major concern for the survival of mankind. COVID-19 accelerated another silent pandemic of AMR through the uncontrolled use of antibiotics and biocides. New generations of antimicrobial agents are needed to combat resistant pathogens. Crown ethers can be used as models for drug action because they are similar to antibiotics. Iodine is a well-known microbicide but is characterized by instability and short-term effectivity. Iodine can be stabilized in the form of polyiodides that have a rich topology but are dependent on their immediate surroundings. In addition, copper has been successfully used since the beginning of history as a biocidal agent. We, therefore, combined iodine and copper with the highly selective crown ether 1,4,7,10-tetraoxacyclododecane (12-crown-4). The morphology and composition of the new pentaiodide [Cu(12-crown-4)2]I5 was investigated. Its antimicrobial activities against a selection of 10 pathogens were studied. It was found that C. albicans WDCM 00054 is highly susceptible to [Cu(12-crown-4)2]I5. Additionally, the compound has good to intermediate antimicrobial activity against Gram-positive and Gram-negative bacilli. The chain-like pentaiodide structure is V-shaped and consists of iodine molecules with very short covalent bonds connected to triiodides by halogen bonding. The single crystal structure is arranged across the lattice fringes in the form of ribbons or honeycombs. The susceptibility of microorganisms towards polyiodides depends on polyiodide bonding patterns with halogen-, covalent-, and non-covalent bonding.
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11

Deplano, Paola, Francesco A. Devillanova, John R. Ferraro, Maria Laura Mercuri, Vito Lippolis y Emanuele F. Trogu. "FT-Raman Study on Charge-Transfer Polyiodide Complexes and Comparison with Resonance Raman Results". Applied Spectroscopy 48, n.º 10 (octubre de 1994): 1236–41. http://dx.doi.org/10.1366/0003702944027372.

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In resonance Raman (RR) spectroscopy, the laser excitation sources have often been found to be destructive towards polyiodides if compared with the milder conditions under which the Fourier transform Raman (FT-R) technique operates. In fact, our FT-R spectra of some model polyiodides—[(CH3)4N]I5 (I5− bent), [(C2H5)4N]I7, and [(CH3)4N]I9—are significantly different from the literature RR data, give evidence of decomposition of the samples in RR, and are in agreement, respectively, with the I− · 2I2, I3− · 2I2 and (I− · 2I2) · 2I2 descriptions. In addition to the above-cited cases, the FT-R spectra of (Mn(modtc)3]Is (modtc = morpholine carbodithioato) and (moH]I5 (moH = morpholinium) are reported. The crystal structures indicate that in these two compounds the I5 anions can be properly described as I− · 2I2 and I3− · I2, respectively, and FT-R spectra agree well with this formulation. Moreover, the first FT-R spectrum of an I164– anion in [mo2ttl]2I16, ([mo2ttl]2+ = 3,5-di( N-morpholinio)-1,2,4-trithiolane), whose X-ray structure shows a sequence of two I3− … I2 … I− ·I2 (I82–) interacting anions, is reported. A close correlation of the FT-Raman peaks with the molecular species, identified by the interatomic distances, is also observed in this case. Thus, a combination of X-ray structural data and FT-R data can provide a reasonable interpretation of the nature of the acceptor iodine moiety in charge-transfer polyiodide complexes.
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12

Stegemann, H., A. Rohde, A. Reiche, A. Schnittke y H. Füllbier. "Room temperature molten polyiodides". Electrochimica Acta 37, n.º 3 (marzo de 1992): 379–83. http://dx.doi.org/10.1016/0013-4686(92)87025-u.

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13

Svensson, Per H., Mikhail Gorlov y Lars Kloo. "Dimensional Caging of Polyiodides". Inorganic Chemistry 47, n.º 24 (15 de diciembre de 2008): 11464–66. http://dx.doi.org/10.1021/ic801820s.

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14

Petrov, Andrey A., Sergey A. Fateev, Yan V. Zubavichus, Pavel V. Dorovatovskii, Victor N. Khrustalev, Irina A. Zvereva, Andrey V. Petrov, Eugene A. Goodilin y Alexey B. Tarasov. "Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System". Journal of Physical Chemistry Letters 10, n.º 19 (12 de septiembre de 2019): 5776–80. http://dx.doi.org/10.1021/acs.jpclett.9b02360.

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15

Abe, Hiroshi, Masami Aono, Tamiko Kiyotani y Seiji Tsuzuki. "Polyiodides in room-temperature ionic liquids". Physical Chemistry Chemical Physics 18, n.º 47 (2016): 32337–44. http://dx.doi.org/10.1039/c6cp06846d.

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16

Pan, Fangfang, Ngong Kodiah Beyeh, Robin H. A. Ras y Kari Rissanen. "N-Alkyl ammonium resorcinarene polyiodides". CrystEngComm 18, n.º 30 (2016): 5724–27. http://dx.doi.org/10.1039/c6ce01229a.

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Heterolytic dissociation of molecular iodine (I2) led to the unexpected formation of triiodides and linear pentaiodide in the solid state when four N-alkyl ammonium resorcinarene halides are reacted with molecular iodine (I2).
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17

Poręba, Tomasz, Marcin Świątkowski, Michelle Ernst, Piero Macchi y Nicola Casati. "Pressure-Aided Stabilization of Pyramidal Polyiodides". Journal of Physical Chemistry C 125, n.º 43 (26 de octubre de 2021): 24105–14. http://dx.doi.org/10.1021/acs.jpcc.1c06324.

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18

Aragoni, Maria C., Massimiliano Arca, Francesco A. Devillanova, Francesco Isaia y Vito Lippolis. "Polyiodides and Polytellurides: Analogies and Differences". Phosphorus, Sulfur, and Silicon and the Related Elements 183, n.º 4 (1 de abril de 2008): 1036–45. http://dx.doi.org/10.1080/10426500801901061.

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19

Fiolka, Christoph, Ingo Pantenburg y Gerd Meyer. "Transition-Metal(II)–Crown-Ether–Polyiodides". Crystal Growth & Design 11, n.º 11 (2 de noviembre de 2011): 5159–65. http://dx.doi.org/10.1021/cg201198t.

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20

STEGEMANN, H., A. ROHDE, A. REICHE, A. SCHNITTKE y H. FUELLBIER. "ChemInform Abstract: Room Temperature Molten Polyiodides." ChemInform 23, n.º 13 (22 de agosto de 2010): no. http://dx.doi.org/10.1002/chin.199213012.

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21

Zhang, Wenyan y Gongxuan Lu. "The enhancement of electron transportation and photo-catalytic activity for hydrogen generation by introducing spin-polarized current into dye-sensitized photo-catalyst". Catalysis Science & Technology 6, n.º 21 (2016): 7693–97. http://dx.doi.org/10.1039/c6cy01880g.

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Implanting polyiodides into graphene not only realized spin-polarization of photo electrons, but induced an optimum Rashba spin–orbit coupling to promote the spin electrons tunneling through the honeycomb sub-lattices of graphene, thus the HER and TOF was highly improved.
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22

Bengtsson, Lars A., Harald Stegemann, Bertil Holmberg y Harry Füllbier. "The structure of room temperature molten polyiodides". Molecular Physics 73, n.º 2 (10 de junio de 1991): 283–96. http://dx.doi.org/10.1080/00268979100101201.

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23

Das, Ganesh Chandra, Babulal Das, Neelotpal Sen Sarma y Okhil Kumar Medhi. "Synthesis, structure and properties of cetyltrimethylammonium polyiodides". Polyhedron 37, n.º 1 (abril de 2012): 14–20. http://dx.doi.org/10.1016/j.poly.2012.01.030.

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24

Sanecki, Przemysław T. y Piotr M. Skitał. "The electroreduction of alkyl iodides and polyiodides". Electrochimica Acta 52, n.º 14 (abril de 2007): 4675–84. http://dx.doi.org/10.1016/j.electacta.2007.01.031.

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25

Mittag, H., H. Stegemann, H. Füllbier y G. Irmer. "Raman spectroscopic investigation of N-alkylurotropinium polyiodides". Journal of Raman Spectroscopy 20, n.º 4 (abril de 1989): 251–55. http://dx.doi.org/10.1002/jrs.1250200409.

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26

Nour, E. M., L. H. Chen y J. Laane. "Far-infrared and Raman spectroscopic studies of polyiodides". Journal of Physical Chemistry 90, n.º 13 (junio de 1986): 2841–46. http://dx.doi.org/10.1021/j100404a014.

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27

Kloo, Lars, Jan Rosdahl y Per H. Svensson. "On the Intra- and Intermolecular Bonding in Polyiodides". European Journal of Inorganic Chemistry 2002, n.º 5 (mayo de 2002): 1203–9. http://dx.doi.org/10.1002/1099-0682(200205)2002:5<1203::aid-ejic1203>3.0.co;2-o.

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28

Reiss, Guido J. y Martin van Megen. "Two New Polyiodides in the 4,4´-Bipyridinium Diiodide/Iodine System". Zeitschrift für Naturforschung B 67, n.º 1 (1 de enero de 2012): 5–10. http://dx.doi.org/10.1515/znb-2012-0102.

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The reaction of bipyridine with hydroiodic acid in the presence of iodine gave two new polyiodide-containing salts best described as 4,4´-bipyridinium bis(triiodide), C10H10N2[I3]2, 1, and bis(4,4´-bipyridinium) diiodide bis(triiodide) tris(diiodine) solvate dihydrate, (C10H10N2)2I2[I3]2 · 3 I2 ·2H2O, 2. Both compounds have been structurally characterized by crystallographic and spectroscopic methods (Raman and IR). Compound 1 is composed of I3 − anions forming one-dimensional polymers connected by interionic halogen bonds. These chains run along [101] with one crystallographically independent triiodide anion aligned and the other triiodide anion perpendicular to the chain direction. There are no classical hydrogen bonds present in 1. The structure of 2 consists of a complex I144− anion, 4,4´-bipyridinium dications and hydrogen-bonded water molecules in the ratio of 1 : 2 : 2. The I144− polyiodide anion is best described as an adduct of two iodide and two triiodide anions and three diiodine molecules. Two 4,4´-bipyridinium cations and two water molecules form a cyclic dimer through N-H· · ·O hydrogen bonds. Only weak hydrogen bonding is found between these cyclic dimers and the polyiodide anions.
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29

Edis, Zehra, Radhika Raheja, Samir Haj Bloukh, Richie R. Bhandare, Hamid Abu Sara y Guido J. Reiss. "Antimicrobial Hexaaquacopper(II) Complexes with Novel Polyiodide Chains". Polymers 13, n.º 7 (24 de marzo de 2021): 1005. http://dx.doi.org/10.3390/polym13071005.

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The non-toxic inorganic antimicrobial agents iodine (I2) and copper (Cu) are interesting alternatives for biocidal applications. Iodine is broad-spectrum antimicrobial agent but its use is overshadowed by compound instability, uncontrolled iodine release and short-term effectiveness. These disadvantages can be reduced by forming complex-stabilized, polymeric polyiodides. In a facile, in-vitro synthesis we prepared the copper-pentaiodide complex [Cu(H2O)6(12-crown-4)5]I6 · 2I2, investigated its structure and antimicrobial properties. The chemical structure of the compound has been verified. We used agar well and disc-diffusion method assays against nine microbial reference strains in comparison to common antibiotics. The stable complex revealed excellent inhibition zones against C. albicans WDCM 00054, and strong antibacterial activities against several pathogens. [Cu(H2O)6(12-crown-4)5]I6 · 2I2 is a strong antimicrobial agent with an interesting crystal structure consisting of complexes located on an inversion center and surrounded by six 12-crown-4 molecules forming a cationic substructure. The six 12-crown-4 molecules form hydrogen bonds with the central Cu(H2O)6. The anionic substructure is a halogen bonded polymer which is formed by formal I5− repetition units. The topology of this chain-type polyiodide is unique. The I5− repetition units can be understood as a triodide anion connected to two iodine molecules.
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30

Yushina, I. y E. Bartashevich. "Iodonium Polyiodide Crystals in the Framework of Periodic Calculations with Localized Atomic Basis Sets". Bulletin of the South Ural State University series "Chemistry" 12, n.º 4 (2020): 101–9. http://dx.doi.org/10.14529/chem200407.

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Methodological features of the crystal structure modeling for compounds with three-center halogen bond formed by two electron donors S–I+–S in polyiodide crystals were considered within the framework of periodic calculations based on localized atomic orbitals. The analysis of applying the different basis sets, effective core potentials, density functional theory functionals, and Grimme dispersion corrections revealed their effect on the geometric, electronic and vibrational properties obtained in calculations. Distribution of S-I bond lengths in S–I+–S fragment was analyzed. The effect of hybrid functional was demonstrated in the significant elongation of S-I distance. The treatment of dispersion interactions via Grimme approach did not significantly influence obtained results. The calculated vibration modes in medium wavenumber region of characteristic cationic stretching vibrations were validated according to experimental Raman spectra and were found to be in good agreement for C-N, C-C and C=S stretching vibrations. Small-core effective potential was shown to be effective for representation of bond lengths in S–I+–S fragment and gave reasonable results for vibrational data for cationic stretching vibrations. Taking into account relativistic effect on the level of basis set led to fine reproducibility of S-I bond lengths although in polyiodides of complex structure it should be treated with caution due to possible incorrect representation of interanionic distances.
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31

Ordinartsev, Artem A., Andrey A. Petrov, Pavel V. Dorovatovskii, Roman D. Svetogorov, Konstantin A. Lyssenko, Eugene A. Goodilina y Alexey B. Tarasov. "Sub- and supersolidus phase relations of formamidinium-cesium polyiodides". Mendeleev Communications 31, n.º 4 (julio de 2021): 451–53. http://dx.doi.org/10.1016/j.mencom.2021.07.004.

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32

Chorro, M., G. Kané, L. Alvarez, J. Cambedouzou, E. Paineau, A. Rossberg, M. Kociak et al. "1D-confinement of polyiodides inside single-wall carbon nanotubes". Carbon 52 (febrero de 2013): 100–108. http://dx.doi.org/10.1016/j.carbon.2012.09.010.

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33

Reiss, Guido J. y Martin van Megen. "Two New Polyiodides in the 4,4'-Bipyridinium Diiodide/Iodine System". Zeitschrift für Naturforschung B 67 (2012): 5–10. http://dx.doi.org/10.5560/znb.2012.67b0005.

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34

Li, Jia-Ming, Kun-Huan He y Yi-Min Jiang. "Two New Polyiodides in the 4,4'-Bipyridinium Diiodide/Iodine System". Zeitschrift für Naturforschung B 67 (2012): 11–16. http://dx.doi.org/10.5560/znb.2012.67b0011.

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35

Dong, Wen-Kui, Guo-Hua Liu, Yin-Xia Sun, Xiu-Yan Dong y Xiong-Hou Gao. "Two New Polyiodides in the 4,4'-Bipyridinium Diiodide/Iodine System". Zeitschrift für Naturforschung B 67 (2012): 17. http://dx.doi.org/10.5560/znb.2012.67b0017.

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36

Wang, Yuan, Yongqiang Xue, Xueping Wang, Zixiang Cui y Leilei Wang. "The stable polyiodides: Experimental and theoretical studies of formation mechanism". Journal of Molecular Structure 1074 (septiembre de 2014): 231–39. http://dx.doi.org/10.1016/j.molstruc.2014.05.062.

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37

García, Marcos D., Javier Martí-Rujas, Pierangelo Metrangolo, Carlos Peinador, Tullio Pilati, Giuseppe Resnati, Giancarlo Terraneo y Maurizio Ursini. "Dimensional caging of polyiodides: cation-templated synthesis using bipyridinium salts". CrystEngComm 13, n.º 13 (2011): 4411. http://dx.doi.org/10.1039/c0ce00860e.

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38

Watanabe, Masanobu, Izumi Motoyama y Hirotoshi Sano. "Molecular structure of some [1.1 ]ferrocenylruthenocenophaniumn+ (n = 1,2 polyiodides salts". Journal of Organometallic Chemistry 510, n.º 1-2 (marzo de 1996): 243–53. http://dx.doi.org/10.1016/0022-328x(95)05919-g.

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39

Staerk, D., H. W. Helberg, J. Ulański y J. K. Jeszka. "Microwave Conductivities of Polymer Films Doped with BEDT-TTF Polyiodides". Acta Physica Polonica A 87, n.º 4-5 (abril de 1995): 797–800. http://dx.doi.org/10.12693/aphyspola.87.797.

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40

Helberg, H. W., D. Staerk, J. Ulański y J. K. Jeszka. "Optical Absorption of Polymer Films Doped with BEDT-TTF Polyiodides". Acta Physica Polonica A 87, n.º 4-5 (abril de 1995): 893–97. http://dx.doi.org/10.12693/aphyspola.87.893.

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41

Makrlík, Emanuel. "Chemical equilibria including particles I-, I3-, I5-, and I2 in two-phase water-nitrobenzene extraction system". Collection of Czechoslovak Chemical Communications 55, n.º 11 (1990): 2602–5. http://dx.doi.org/10.1135/cccc19902602.

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General relations among thermodynamic parameters characterizing chemical equilibria with species I-, I3-, I5-, and I2 in the two-phase water-nitrobenzene extraction system have been derived. Furthermore, these relations have been used for calculating equilibrium constants K1aq(I3-) and K2aq(I5-) corresponding to homogeneous reactions I-(aq) + I2(aq) ⇄ I3-(aq) and I3-(aq) + I2(aq) ⇄ I5-(aq) proceeding in the aqueous phase of the system under study. Finally, stability of polyiodides I3- and I5- in both phases has been discussed.
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42

Notter, Silke, Carsten Donsbach y Claus Feldmann. "On iodido bismuthates, bismuth complexes and polyiodides with bismuth in the system BiI3/18-crown-6/I2". Zeitschrift für Naturforschung B 76, n.º 10-12 (18 de octubre de 2021): 765–74. http://dx.doi.org/10.1515/znb-2021-0127.

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Abstract The iodido bismuthates [Bi(18-crown-6)I2][BiI4] (1) and [Bi(18-crown-6)I2][Bi3I10] (2), the neutral complex [Bi(C6H14O4)I3](18-crown-6) (3) as well as the polyiodides [Bi(18-crown-6)I2][I5](18-crown-6) (4), [Bi(18-crown-6)I2]2[I14] (5) and [Bi(18-crown-6)I2]2[I19] (6) were prepared by reaction of BiI3, 18-crown-6, and I2 at T = 60–120 °C. The compounds 1–5 were prepared in [n-Bu3MeN][N(Tf)2] as an ionic liquid ([n-Bu3MeN]: tributylmethylammonium, [N(Tf)2]: bis(trifluoromethylsulfonyl)imide), whereas 6 was obtained only by direct reaction of the starting materials. The title compounds exhibit two different constitutions of the [Bi(18-crown-6)I2]+ cation as well as a non-charged, molecular [Bi(C6H14O4)I3] unit with a triethylene glycol ligand generated in situ by cleavage of the crown ether. Infinite chain-like [ BiI 2 / 1 I 4 / 2 ] − ∞ 1 ${}_{\infty }{}^{1}\left[{{\text{BiI}}_{2/1}{\text{I}}_{4/2}\right]}^{-}$ and [ Bi 6 I 18 / 1 I 4 / 2 ∞ 1 ] − ${{}_{\infty }{}^{1}\left[{\text{Bi}}_{6}{\text{I}}_{18/1}{\text{I}}_{4/2}\right]}^{-}$ anions occur in 1 and 2, whereas various polyiodide anions (e.g. [I3]−, [I5]−, [I7]−, [I9]−) with partly complex interaction are observed in 4, 5, and 6. The title compounds were characterized by single-crystal X-ray diffraction analysis and infrared spectroscopy. In the case of 1 and 2, the optical band gap was determined to be E g = 1.91 and 1.62 eV, respectively. Especially, the ionic-liquid-based synthesis affords the different metastable compounds with variable composition and structure in a narrow temperature range.
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43

Pavan, G., Teja sree, S. Swetha, T. Asok goud, A. Shravan kumar y M. Nagarajugoud. "SYNTHETIC STUDIES ON POLYIODIDES OF TRANSITION IRON(II) MEATAL TRIS-CHELATE." International Journal of Advanced Research 4, n.º 10 (31 de octubre de 2016): 833–41. http://dx.doi.org/10.21474/ijar01/1866.

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44

Savastano, Matteo, Álvaro Martínez-Camarena, Carla Bazzicalupi, Estefanía Delgado-Pinar, José Llinares, Palma Mariani, Begoña Verdejo, Enrique García-España y Antonio Bianchi. "Stabilization of Supramolecular Networks of Polyiodides with Protonated Small Tetra-azacyclophanes". Inorganics 7, n.º 4 (1 de abril de 2019): 48. http://dx.doi.org/10.3390/inorganics7040048.

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Polyiodide chemistry is among the first historically reported examples of supramolecular forces at work. To date, owing to the increasingly recognized role of halogen bonding and the incorporation of iodine-based components in several devices, it remains an active field of theoretical and applied research. Herein we re-examine azacyclophanes as a class of ligands for the stabilization of iodine-dense three-dimensional networks, showing how we devised novel possible strategies starting from literature material. The new set of azacyclophane ligands affords novel crystal structures possessing intriguing properties, which develop on a double layer. At a macroscopic level, the obtained networks possess a very high iodine packing density (less than 2 times more diluted than crystalline I2): a simple parameter, IN, is also introduced to quickly measure and compare iodine packing density in different crystals. On the microscopic level, the present study provides evidence about the ability of one of the ligands to act as a three-dimensional supramolecular mold for the template synthesis of the rarely observed heptaiodide (I7−) anion. Therefore, we believe our approach and strategy might be relevant for crystal engineering purposes.
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45

Manca, G., C. Mealli y A. Ienco. "Electronic factors affecting the I–I bonds in the simplest polyiodides". Acta Crystallographica Section A Foundations of Crystallography 67, a1 (22 de agosto de 2011): C136—C137. http://dx.doi.org/10.1107/s0108767311096644.

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46

Pan, Fangfang y Ulli Englert. "N-(6-Methyl-2-pyridyl)mesitylenesulfonamide: An Efficient Template for Polyiodides". Crystal Growth & Design 14, n.º 3 (6 de febrero de 2014): 1057–66. http://dx.doi.org/10.1021/cg4015477.

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47

Bartashevich, E. V., I. D. Yushina, E. A. Vershinina, P. A. Slepukhin y D. G. Kim. "Complex structure tri- and polyiodides of iodocyclization products of 2-allylthioquinoline". Journal of Structural Chemistry 55, n.º 1 (enero de 2014): 112–19. http://dx.doi.org/10.1134/s0022476614010181.

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48

Hong, Mingfang, Helena Soini y Milos V. Novotny. "Affinity capillary electrophoretic studies of complexation between dextrin oligomers and polyiodides". Electrophoresis 21, n.º 8 (1 de mayo de 2000): 1513–20. http://dx.doi.org/10.1002/(sici)1522-2683(20000501)21:8<1513::aid-elps1513>3.0.co;2-o.

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49

Zhang, Shengli, Chengcheng Kai, Bofang Liu, Silue Zhang, Wei Wei, Xiaoling Xu y Zuowan Zhou. "Facile fabrication of cellulose membrane containing polyiodides and its antibacterial properties". Applied Surface Science 500 (enero de 2020): 144046. http://dx.doi.org/10.1016/j.apsusc.2019.144046.

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50

Ulański, J., A. Tracz, J. K. Jeszka, E. Laukhina y T. Pakuła. "Phase transformations of ET polyiodides leading to superconducting polymer in situ composites". Synthetic Metals 85, n.º 1-3 (marzo de 1997): 1591–92. http://dx.doi.org/10.1016/s0379-6779(97)80363-3.

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