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Journal articles on the topic 'Stannylenes'

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Author: Grafiati

Published: 6 September 2023

Last updated: 7 September 2023

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1

Cabeza, Javier A., Israel Fernández, Pablo García-Álvarez, Rubén García-Soriano, Carlos J. Laglera-Gándara, and Rubén Toral. "Stannylenes based on pyrrole-phosphane and dipyrromethane-diphosphane scaffolds: syntheses and behavior as precursors to PSnP pincer palladium(ii), palladium(0) and gold(i) complexes." Dalton Transactions 50, no. 44 (2021): 16122–32. http://dx.doi.org/10.1039/d1dt02967c.

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2

Pahar, Sanjukta, Vishal Sharma, Srinu Tothadi, and Sakya S. Sen. "Pyridylpyrrolido ligand in Ge(ii) and Sn(ii) chemistry: synthesis, reactivity and catalytic application." Dalton Transactions 50, no. 45 (2021): 16678–84. http://dx.doi.org/10.1039/d1dt03136h.

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The work describes the synthesis of a series of germylenes and stannylenes (1–6) supported by pyridylpyrrolido (PyPyr) ligand. The catalytic utility of stannylene 5 towards hydroboration of a range of organic compounds is further explored.

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3

Neumann, Wilhelm P. "Germylenes and stannylenes." Chemical Reviews 91, no. 3 (May 1991): 311–34. http://dx.doi.org/10.1021/cr00003a002.

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4

Al-Allaf, Talal A. K. "Reactions of the Divalent Tin Compounds R2M, R = N(SiMe3)2 or CH(SiMe3)2 with Complexes of the Platinum Group Metals." Journal of Chemical Research 2003, no. 2 (January 2003): 101–4. http://dx.doi.org/10.3184/030823403103173110.

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The stannylenes R2Sn, (R = N(SiMe3)2 or CH(SiMe3)2) insert into M–X bonds of complexes [MX2L2] to give new complexes of the general formula [MX(SnR2X)L2], (M = Pt, Pd, Ni; X = Cl, N3, NO2; L = PEt3, PBu3, DPPE). They also insert into Pt–Cl bonds of the bridged complexes [{Pt(μ-Cl)Cl(L)}2], to give the new bridged complexes[{Pt(μ-Cl)(SnR2Cl)(L)}2], (R = N(SiMe3)2, L = PEt3, PBu3, PMe2Ph, PPh3), in which the bridge remained uncleaved. In one reaction of the stannylene R2Sn, where R = CH(SiMe3)2, the bridged complex [{Pt(μ-Cl)(SnR2Cl)(PEt3)}2] undergoes cleavage followed by migration of Cl to give [PtCl(SnR2Cl)(η2-SnR2)(PEt3)]. Further, the bridged complex [{Pt(μ-Cl)(SnR2Cl)(PEt3)}2], (R = N(SiMe3)2), with the neutral ligands L’, (L’ = PPh3, pyridine or AsPh3), undergoes bridge cleavage to form the complexes [PtCl(SnR2Cl)(PEt3)(L’)]. The reaction of the stannylene R2Sn, (R = N(SiMe3)2) with the platinum(0) complexes [Pt(C2H4)(PPh3)2] and [Pt(COD)2], COD = 1,5-cyclooctadiene is described. The complexes obtained have been characterised mainly by 31P NMR spectroscopy and elemental analysis.

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5

Kristinsdóttir, Lilja, Nicola L. Oldroyd, Rachel Grabiner, Alastair W. Knights, Andreas Heilmann, Andrey V. Protchenko, Haoyu Niu, et al. "Synthetic, structural and reaction chemistry of N-heterocyclic germylene and stannylene compounds featuring N-boryl substituents." Dalton Transactions 48, no. 31 (2019): 11951–60. http://dx.doi.org/10.1039/c9dt02449b.

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6

Ochiai, Tatsumi, and Shigeyoshi Inoue. "Synthesis of a cyclopentadienyl(imino)stannylene and its direct conversion into halo(imino)stannylenes." RSC Advances 7, no. 2 (2017): 801–4. http://dx.doi.org/10.1039/c6ra27697k.

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We report the synthesis and structure of a dimeric Cp-substituted iminostannylene as well as its unusual reactivity towards haloalkanes, resulting in the formation of halogen-substituted iminostannylenes.

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7

Hsu, Chen-Yuan, Li-Wei Chan, Gene-Hsiang Lee, Shie-Ming Peng, and Ching-Wen Chiu. "Triphenylene-based tris-N-heterocyclic stannylenes." Dalton Transactions 44, no. 34 (2015): 15095–98. http://dx.doi.org/10.1039/c5dt00694e.

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8

Nakata, Norio, Narimi Hosoda, Shintaro Takahashi, and Akihiko Ishii. "Chlorogermylenes and -stannylenes stabilized by diimidosulfinate ligands: synthesis, structures, and reactivity." Dalton Transactions 47, no. 2 (2018): 481–90. http://dx.doi.org/10.1039/c7dt04390b.

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9

De Proft, Frank, Lies Broeckaert, Jan Turek, Aleš Růžička, and Rudolph Willem. "Reactivity of low-oxidation state tin compounds: an overview of the benefits of combining DFT Theory and experimental NMR spectroscopy." Canadian Journal of Chemistry 92, no. 6 (June 2014): 447–61. http://dx.doi.org/10.1139/cjc-2013-0521.

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The reactivity and complexation properties of dicoordinated Sn(II) and Sn(0) compounds are reviewed. The (dominant) electrophilicity of the stannylenes was confirmed and quantified through density functional theory (DFT) based reactivity indices. For these compounds, combining theoretical DFT calculations and experimental nuclear magnetic resonance (NMR) spectroscopic results has evidenced their potential to undergo π-complexation from aromatic π clouds in addition to significantly stronger σ-complexation. Moreover, their potential as Lewis bases was scrutinized in their interactions and reactions with iron and tungsten carbonyl Lewis acids. Finally, a prospective comparison of the reactivity of divalent stannylenes and stannylones, with a 0 oxidation state at the Sn atom, is presented.

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10

NEUMANN, W. P. "ChemInform Abstract: Germylenes and Stannylenes." ChemInform 22, no. 50 (August 22, 2010): no. http://dx.doi.org/10.1002/chin.199150327.

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11

Arp, Henning, Christoph Marschner, Judith Baumgartner, Patrick Zark, and Thomas Müller. "Coordination Chemistry of Disilylated Stannylenes with Group 10 d10 Transition Metals: Silastannene vs Stannylene Complexation." Journal of the American Chemical Society 135, no. 21 (May 16, 2013): 7949–59. http://dx.doi.org/10.1021/ja401548d.

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12

Herberhold, Max, Christian Köhler, Wolfgang Milius, and Bernd Wrackmeyer. "New Spiro-Tin Compounds: Reaction of N,N′-Dialkyl Sulfur Diimides with Cyclic Bis(amino)stannylenes - Unexpected Formation of a N-N Bond." Zeitschrift für Naturforschung B 50, no. 12 (December 1, 1995): 1811–17. http://dx.doi.org/10.1515/znb-1995-1207.

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N,N′-Dialkyl sulfur diimides (1), R(NSN)R [R = Me (a), Et (b), nPr (c), nBu (d)] react with cyclic bis(amino)stannylenes such as 1,3-di-tert-butyl-4,4-dimethyl-1,3,4,2λ2-diazasilastannetedine (2) or 1,3-di-tert-butyl-4,4,5,5-tetramethyl-1,3,4,5,2λ2-diazadisilastannolidine (3) in a 2:1 ratio to give the new spiro-tin(IV) compounds 5a-d, 6b and 6c, built from the respective cyclic bis(amino)stannylene and a seven-membered ring in which the two sulfur diimide groups are coupled via a N-N bond and across the tin atom. A 1:1 adduct 4 is proposed as an intermediate which is the final product 4e in the case of R = tBu (1e). The products were characterized by multinuclear magnetic resonance (1H, 13C, 15N, 29Si, 119Sn NMR), and in the case of 5c the molecular structure was determined by single crystal X-ray structure analysis [monoclinic, space group C2/c ; a = 1504.1(3), b = 1393.3(3), c = 1688.6(3) pm; β = 115.71(3)°].

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13

Raut, Ravindra K., Padmini Sahoo, Dipti Chimnapure, and Moumita Majumdar. "Versatile coordinating abilities of acyclic N4 and N2P2 ligand frameworks in conjunction with Sn[N(SiMe3)2]2." Dalton Transactions 48, no. 29 (2019): 10953–61. http://dx.doi.org/10.1039/c9dt00617f.

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14

Kuriki, Ryunosuke, Takuya Kuwabara, and Youichi Ishii. "Synthesis and structures of diaryloxystannylenes and -plumbylenes embedded in 1,3-diethers of thiacalix[4]arene." Dalton Transactions 49, no. 35 (2020): 12234–41. http://dx.doi.org/10.1039/d0dt02496a.

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15

Roselló-Merino, Marta, and Stephen M. Mansell. "Synthesis and reactivity of fluorenyl-tethered N-heterocyclic stannylenes." Dalton Transactions 45, no. 14 (2016): 6282–93. http://dx.doi.org/10.1039/c5dt04060d.

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N-Heterocyclic stannylenes containing a functionalised donor arm have been synthesised using a transamination strategy from [Sn{N(SiMe₃)₂}₂] and fluorenyl-tethered diamines.

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16

Khrustalev, Victor N., Ivan A. Portnyagin, Nikolay N. Zemlyansky, Irina V. Borisova, Mikhail S. Nechaev, Yuri A. Ustynyuk, Mikhail Yu Antipin, and Valery Lunin. "New stable germylenes, stannylenes, and related compounds." Journal of Organometallic Chemistry 690, no. 5 (March 2005): 1172–77. http://dx.doi.org/10.1016/j.jorganchem.2004.11.024.

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17

Karwasara, Surendar, Chandan Kumar Jha, Soumen Sinhababu, and Selvarajan Nagendran. "O,S-Heterocyclic stannylenes: synthesis and reactivity." Dalton Transactions 45, no. 17 (2016): 7200–7204. http://dx.doi.org/10.1039/c6dt01013j.

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18

PAETZOLD, P., D. HAHNFELD, and U. ENGLERT. "ChemInform Abstract: Addition of Stannylenes to Iminoboranes." ChemInform 23, no. 34 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199234247.

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19

Piskunov, Alexander V., Igor A. Aivaz’yan, Vladimir K. Cherkasov, and Gleb A. Abakumov. "New paramagnetic N-heterocyclic stannylenes: An EPR study." Journal of Organometallic Chemistry 691, no. 8 (April 2006): 1531–34. http://dx.doi.org/10.1016/j.jorganchem.2005.11.064.

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20

Wrackmeyer, Bernd, and Jürgen Weidinger. "N-Boryl-Substituted Bis(amino)stannylenes and -plumbylenes." Zeitschrift für Naturforschung B 52, no. 8 (August 1, 1997): 947–50. http://dx.doi.org/10.1515/znb-1997-0811.

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Abstract Two equivalents of N-lithio-N-trimethylsilyl-amino-9-borabicyclo[3.3.1]nonane (1) react with tin and lead dichloride by salt elimination to give the corresponding bis(amino)stannylene 2 and -plumbylene 3, respectively. The compounds 2 and 3 are monomers in solution and were characterized by 1H, 13C, 14N, 29Si, 119Sn and 207Pb NMR spectroscopy.

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21

Álvarez-Rodríguez, Lucía, Javier A. Cabeza, Pablo García-Álvarez, and Diego Polo. "Organic Amides as Suitable Precursors to Stabilize Stannylenes." Organometallics 32, no. 12 (June 13, 2013): 3557–61. http://dx.doi.org/10.1021/om400476c.

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22

Köpper, Sabine, and Anna Brandenburg. "Novel 1,6-Stannylenes of Glucose, Galactose and Mannose." Liebigs Annalen der Chemie 1992, no. 9 (September 17, 1992): 933–40. http://dx.doi.org/10.1002/jlac.1992199201154.

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23

Krupski, Sergei, Christian Schulte to Brinke, Hannah Koppetz, Alexander Hepp, and F. Ekkehardt Hahn. "Protic N-Heterocyclic Germylenes and Stannylenes: Synthesis and Reactivity." Organometallics 34, no. 11 (February 9, 2015): 2624–31. http://dx.doi.org/10.1021/om5012616.

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24

Benet, Sisco, Christine J. Cardin, David J. Cardin, Steven P. Constantine, Peter Heath, Haroon Rashid, Susana Teixeira, James H. Thorpe, and Alan K. Todd. "Syntheses and Crystal Structures of Heteroleptic Stannylenes and Germylenes." Organometallics 18, no. 3 (February 1999): 389–98. http://dx.doi.org/10.1021/om980836z.

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25

Smith, Laura A., Wei-Bo Wang, Cynthia Burnell-Curty, and Eric J. Roskamp. "Conversion of Esters to Amides with Amino Halo Stannylenes." Synlett 1993, no. 11 (1993): 850–52. http://dx.doi.org/10.1055/s-1993-22630.

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26

Sindlinger, Christian P., Frederik S. W. Aicher, and Lars Wesemann. "Cationic Stannylenes: In Situ Generation and NMR Spectroscopic Characterization." Inorganic Chemistry 56, no. 1 (December 15, 2016): 548–60. http://dx.doi.org/10.1021/acs.inorgchem.6b02377.

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27

Day, Benjamin M., Philip W. Dyer, and Martyn P. Coles. "Hydroformylation by Pt–Sn compounds from N-heterocyclic stannylenes." Dalton Transactions 41, no. 25 (2012): 7457. http://dx.doi.org/10.1039/c2dt30988b.

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28

Álvarez-Rodríguez, Lucía, Javier A. Cabeza, Pablo García-Álvarez, and Diego Polo. "The transition-metal chemistry of amidinatosilylenes, -germylenes and -stannylenes." Coordination Chemistry Reviews 300 (September 2015): 1–28. http://dx.doi.org/10.1016/j.ccr.2015.04.008.

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29

Sullivan, Hannah S. I., Andrew J. Straiton, Gabriele Kociok-Köhn, and Andrew L. Johnson. "N-O Ligand Supported Stannylenes: Preparation, Crystal, and Molecular Structures." Inorganics 10, no. 9 (August 31, 2022): 129. http://dx.doi.org/10.3390/inorganics10090129.

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A new series of tin(II) complexes (1, 2, 4, and 5) were successfully synthesized by employing hydroxy functionalized pyridine ligands, specifically 2-hydroxypyridine (hpH), 8-hydroxyquinoline (hqH), and 10-hydroxybenzo[h]quinoline (hbqH) as stabilizing ligands. Complexes [Sn(μ-κ2ON-OC5H4N)(N{SiMe3}2)]2 (1) and [Sn4(μ-κ2ON-OC5H4N)6(κ1O-OC5H4N)2] (2) are the first structurally characterized examples of tin(II) oxypyridinato complexes exhibiting {Sn2(OCN)2} heterocyclic cores. As part of our study, 1H DOSY NMR experiments were undertaken using an external calibration curve (ECC) approach, with temperature-independent normalized diffusion coefficients, to determine the nature of oligomerisation of 2 in solution. An experimentally determined diffusion coefficient (298 K) of 6.87 × 10−10 m2 s−1 corresponds to a hydrodynamic radius of Ca. 4.95 Å. This is consistent with the observation of an averaged hydrodynamic radii and equilibria between dimeric [Sn{hp}2]2 and tetrameric [Sn{hp}2]4 species at 298 K. Testing this hypothesis, 1H DOSY NMR experiments were undertaken at regular intervals between 298 K–348 K and show a clear change in the calculated hydrodynamic radii form 4.95 Å (298 K) to 4.35 Å (348 K) consistent with a tetramer ⇄ dimer equilibria which lies towards the dimeric species at higher temperatures. Using these data, thermodynamic parameters for the equilibrium (ΔH° = 70.4 (±9.22) kJ mol−1, ΔS° = 259 (±29.5) J K−1 mol−1 and ΔG°298 = −6.97 (±12.7) kJ mol−1) were calculated. In the course of our studies, the Sn(II) oxo cluster, [Sn6(m3-O)6(OR)4:{Sn(II)(OR)2}2] (3) (R = C5H4N) was serendipitously isolated, and its molecular structure was determined by single-crystal X-ray diffraction analysis. However, attempts to characterise the complex by multinuclear NMR spectroscopy were thwarted by solubility issues, and attempts to synthesise 3 on a larger scale were unsuccessful. In contrast to the oligomeric structures observed for 1 and 2, single-crystal X-ray diffraction studies unambiguously establish the monomeric 4-coordinate solid-state structures of [Sn(κ2ON-OC9H6N)2)] (4) and [Sn(κ2ON-OC13H8N)2)] (5).

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30

Paul, Daniel, Frederik Heins, Sergei Krupski, Alexander Hepp, Constantin G. Daniliuc, Kevin Klahr, Johannes Neugebauer, Frank Glorius, and F. Ekkehardt Hahn. "Synthesis and Reactivity of Intramolecularly NHC-Stabilized Germylenes and Stannylenes." Organometallics 36, no. 5 (February 21, 2017): 1001–8. http://dx.doi.org/10.1021/acs.organomet.6b00925.

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31

Bareš, Josef, Zdeňka Padělková, Philippe Meunier, Nadine Pirio, and Aleš Růžička. "Reactivity of di-n-butyl-dicyclopentadienylzirconium towards amido stabilized stannylenes." Journal of Organometallic Chemistry 694, no. 9-10 (April 2009): 1263–65. http://dx.doi.org/10.1016/j.jorganchem.2009.01.041.

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32

Huang, Mengmeng, El’mira Kh Lermontova, Kirill V. Zaitsev, Andrei V. Churakov, Yuri F. Oprunenko, Judith A. K. Howard, Sergey S. Karlov, and Galina S. Zaitseva. "Novel germylenes and stannylenes based on pyridine-containing dialcohol ligands." Journal of Organometallic Chemistry 694, no. 23 (November 2009): 3828–32. http://dx.doi.org/10.1016/j.jorganchem.2009.06.039.

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33

Mehring, Michael, Christian Löw, Markus Schürmann, Frank Uhlig, Klaus Jurkschat, and Bernard Mahieu. "Novel Heteroleptic Stannylenes with Intramolecular O,C,O-Donor Stabilization†,‡." Organometallics 19, no. 22 (October 2000): 4613–23. http://dx.doi.org/10.1021/om000452k.

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34

KOEPPER, S., and A. BRANDENBURG. "ChemInform Abstract: Novel 1,6-Stannylenes of Glucose, Galactose and Mannose." ChemInform 24, no. 3 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199303253.

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35

WRACKMEYER, B., and J. WEIDINGER. "ChemInform Abstract: N-Boryl-Substituted Bis(amino)stannylenes and -plumbylenes." ChemInform 28, no. 49 (August 2, 2010): no. http://dx.doi.org/10.1002/chin.199749194.

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36

Zabula, Alexander V., and F. Ekkehardt Hahn. "Mono- and Bidentate Benzannulated N-Heterocyclic Germylenes, Stannylenes and Plumbylenes." European Journal of Inorganic Chemistry 2008, no. 33 (November 2008): 5165–79. http://dx.doi.org/10.1002/ejic.200800866.

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37

Krebs, K. M., S. Freitag, J. J. Maudrich, H. Schubert, P. Sirsch, and L. Wesemann. "Coordination chemistry of stannylene-based Lewis pairs – insertion into M–Cl and M–C bonds. From base stabilized stannylenes to bidentate ligands." Dalton Transactions 47, no. 1 (2018): 83–95. http://dx.doi.org/10.1039/c7dt04044j.

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38

Baumgartner, Judith, and Christoph Marschner. "Coordination of non-stabilized germylenes, stannylenes, and plumbylenes to transition metals." Reviews in Inorganic Chemistry 34, no. 2 (June 1, 2014): 119–52. http://dx.doi.org/10.1515/revic-2013-0014.

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AbstractComplexes of transition metals with heavy analogs of carbenes (tetrylenes) as ligands have been studied now for some 40 years. The current review attempts to provide an overview about complexes with non-stabilized (having no π-donating substituents) germylenes, stannylenes, and plumbylenes. Complexes are known for groups 4–11. For groups 6–10 not only examples of monodentate tetrylene ligands, but also of bridging ones are known. While this review covers almost 200 complexes, the field in general has been approached only very selectively and real attempts for systematic studies are very scarce. Although some isolated reports exist which deal with the reactivity of the tetrylene complexes most of the so far published work concentrates on synthesis and characterization.

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39

Zhou, Dong, Clemens Reiche, Mrinmoy Nag, John A. Soderquist, and Peter P. Gaspar. "Synthesis of 1-Stannacyclopent-3-enes and Their Pyrolysis to Stannylenes." Organometallics 28, no. 8 (April 27, 2009): 2595–608. http://dx.doi.org/10.1021/om800541f.

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40

Nechaev, Mikhail S. "New type of reactions of stannylenes with organic azides: Theoretical study." Journal of Molecular Structure: THEOCHEM 862, no. 1-3 (August 2008): 49–52. http://dx.doi.org/10.1016/j.theochem.2008.04.024.

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41

Mengmeng, H., S. S. Karlov, M. V. Zabalov, K. V. Zaitsev, D. A. Lemenovskii, and G. S. Zaitseva. "Structures of germylenes and stannylenes with chelating ligands: a DFT study." Russian Chemical Bulletin 58, no. 8 (August 2009): 1576–80. http://dx.doi.org/10.1007/s11172-009-0216-y.

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42

Krupski, Sergei, Julia V. Dickschat, Alexander Hepp, Tania Pape, and F. Ekkehardt Hahn. "Synthesis and Characterization of Rigid Ditopic N-Heterocyclic Benzobisgermylenes and -stannylenes." Organometallics 31, no. 5 (February 29, 2012): 2078–84. http://dx.doi.org/10.1021/om3000604.

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43

Alvarez-Rodriguez, Lucia, Javier A. Cabeza, Pablo Garcia-Alvarez, and Diego Polo. "ChemInform Abstract: The Transition-Metal Chemistry of Amidinatosilylenes, -Germylenes and -Stannylenes." ChemInform 46, no. 51 (December 2015): no. http://dx.doi.org/10.1002/chin.201551206.

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44

Breher, Frank, and Heinz Rüegger. "Distannenes Turned Inside Out: Bis(stannylenes) with an Unusual Structural Motif." Angewandte Chemie International Edition 44, no. 3 (December 29, 2004): 473–77. http://dx.doi.org/10.1002/anie.200460910.

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45

SMITH, L. A., W. B. WANG, C. BURNELL-CURTY, and E. J. ROSKAMP. "ChemInform Abstract: Conversion of Esters to Amides with Amino Halo Stannylenes." ChemInform 25, no. 36 (August 19, 2010): no. http://dx.doi.org/10.1002/chin.199436089.

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46

Wrackmeyer, Bernd, Andreas Pedall, and Jürgen Weidinger. "N-Silylaminotin Trichlorides. Synthesis and Characterisation by Multinuclear Magnetic Resonance Spectroscopy." Zeitschrift für Naturforschung B 56, no. 10 (October 1, 2001): 1009–14. http://dx.doi.org/10.1515/znb-2001-1008.

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N-Silyl-aminotin trichlorides, R1R2N-SnCl3[R1 = R2 = SiMe3 (1a), R1 = SiMe3, R2 = tBu (1b), R = SiMe3, R2 = 9-borabicyclo[3.3.1]nonyl (1c), R1R2 = Me2 SiCH2CH2SiMe2 (1d)] were prepared by the reaction of tin tetrachloride with the respective bis(amino)plumbylenes, (R1R2N)2Pb 4. The analogous reactions with bis(amino)stannylenes, (R1R2N)2Sn 3, afforded only mixtures of the aminotin trichlorides 1 and bis(amino)tin dichlorides, (R1R2N)2 SnCl2 2 . The products were characterised by 1H, 11B, 13C, 15N, 29Si and 119Sn NMR spectroscopy, and the NMR data of 1 were compared with those of the corresponding N-silylamino(trimethyl)tin compounds 8.

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47

Švec, Petr, Maksim A. Samsonov, Zdeňka Růžičková, Jiří Brus, and Aleš Růžička. "Oxidative addition of cyanogen bromide to C,N-chelated and Lappert's stannylenes." Dalton Transactions 50, no. 16 (2021): 5519–29. http://dx.doi.org/10.1039/d1dt00704a.

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48

Bankiewicz, Barbara, and Piotr Matczak. "Controlling the preferred nitrogen site in 1,2,3-triazine to bind with stannylenes." Polyhedron 225 (October 2022): 116056. http://dx.doi.org/10.1016/j.poly.2022.116056.

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49

Dickschat, Julia V., Slawomir Urban, Tania Pape, Frank Glorius, and F. Ekkehardt Hahn. "Sterically demanding and chiral N,N′-disubstituted N-heterocyclic germylenes and stannylenes." Dalton Transactions 39, no. 48 (2010): 11519. http://dx.doi.org/10.1039/c0dt01233e.

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Švec, Petr, Zdeňka Padělková, Mercedes Alonso, Frank De Proft, and Aleš Růžička. "Comparison of reactivity of C,N-chelated and Lappert’s stannylenes with trimethylsilylazide." Canadian Journal of Chemistry 92, no. 6 (June 2014): 434–40. http://dx.doi.org/10.1139/cjc-2013-0500.

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Abstract:

Two mixed amido-azido tin(IV) species bearing either C,N-chelating or bulky amido ligands were prepared by the reaction of the corresponding stannylene (e.g., Sn[N(SiMe3)2]2 (1) or (LCN)2Sn (2, LCN = 2-(N,N-dimethylaminomethyl)phenyl)) with Me3SiN3. Both products of the oxidative addition, Sn[N(SiMe3)2]3N3 (3) and (LCN)2Sn[N(SiMe3)2]N3 (5), respectively, were fully characterized by both multinuclear NMR spectroscopy and XRD analysis. Heating of a mixture of 2 and Me3SiN3 up to 100 °C lead to the formation of a novel dimeric species (LCN)2Sn(μ-NSiMe3)2Sn(LCN)2 (4), where the two tin atoms are bridged by two NSiMe3 ligands, thus forming a four-membered diazadistannacycle. DFT calculations were also carried out to support the proposed reaction mechanisms.

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