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1

Wang, Bing-Wu, Xin-Yi Wang, Hao-Ling Sun, Shang-Da Jiang et Song Gao. « Evolvement of molecular nanomagnets in China ». Philosophical Transactions of the Royal Society A : Mathematical, Physical and Engineering Sciences 371, no 2000 (13 octobre 2013) : 20120316. http://dx.doi.org/10.1098/rsta.2012.0316.

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Molecular nanomagnets have been undergoing development for 20 years since the first single-molecule magnet (SMM), Mn 12 Ac, was characterized as the molecule-behaved magnet. The multi-disciplinary scientists promoted the magnetic characteristics to be more suitable for use in information science and spintronics. The concept of molecular nanomagnets has also evolved to include single-chain magnets (SCMs), single-ion magnets (SIMs) and even magnetic molecules that showed only slow magnetic relaxation, in addition to the initial cluster-type SMMs. In this review, several aspects, including SMMs, SCMs and SIMs, are introduced briefly through some representative examples. In particular, the contribution of Chinese chemists is highlighted in the design, synthesis and understanding of various types of molecular nanomagnets.
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Cosquer, Goulven, Yongbing Shen, Manuel Almeida et Masahiro Yamashita. « Conducting single-molecule magnet materials ». Dalton Transactions 47, no 23 (2018) : 7616–27. http://dx.doi.org/10.1039/c8dt01015c.

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Multifunctional molecular materials exhibiting electrical conductivity and single-molecule magnet (SMM) behaviour are particularly attractive for electronic devices and related applications owing to the interaction between electronic conduction and magnetization of unimolecular units.
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Zhang, Yuan-Zhu, Andrew J. Brown, Yin-Shan Meng, Hao-Ling Sun et Song Gao. « Linear trinuclear cobalt(ii) single molecule magnet ». Dalton Transactions 44, no 6 (2015) : 2865–70. http://dx.doi.org/10.1039/c4dt03545c.

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The first linear trinuclear [CoII3] SMM was achieved due to significant intracluster ferromagnetic coupling. This study shows that miniscule changes in the coordination environment of the cobalt centers in this structural archetype can have a drastic effect on the observation of SMM behavior.
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Liu, Shihao, Yi-Fei Deng, Chang'An Li, Xiaoyong Chang et Yuan-Zhu Zhang. « A linear trinuclear ferrous single molecule magnet ». Dalton Transactions 47, no 46 (2018) : 16704–8. http://dx.doi.org/10.1039/c8dt03410a.

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Then, Poh Ling, Chika Takehara, Yumiko Kataoka, Motohiro Nakano, Tomoo Yamamura et Takashi Kajiwara. « Structural switching from paramagnetic to single-molecule magnet behaviour of LnZn2 trinuclear complexes ». Dalton Transactions 44, no 41 (2015) : 18038–48. http://dx.doi.org/10.1039/c5dt02965a.

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Mitcov, Dmitri, Anders H. Pedersen, Marcel Ceccato, Rikke M. Gelardi, Tue Hassenkam, Andreas Konstantatos, Anders Reinholdt et al. « Molecular multifunctionality preservation upon surface deposition for a chiral single-molecule magnet ». Chemical Science 10, no 10 (2019) : 3065–73. http://dx.doi.org/10.1039/c8sc04917c.

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Novitchi, Ghenadie, Jean-Pierre Costes, Jean-Pierre Tuchagues, Laure Vendier et Wolfgang Wernsdorfer. « A single molecule magnet (SMM) with a helicate structure ». New J. Chem. 32, no 2 (2008) : 197–200. http://dx.doi.org/10.1039/b716283a.

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Zhu, Yuan-Yuan, Ting-Ting Yin, Shang-Da Jiang, Anne-Laure Barra, Wolfgang Wernsdorfer, Petr Neugebauer, Raphael Marx et al. « The solvent effect in an axially symmetric FeIII4 single-molecule magnet ». Chem. Commun. 50, no 95 (2014) : 15090–93. http://dx.doi.org/10.1039/c4cc07580c.

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Tyagi, Pawan, Christopher Riso, Uzma Amir, Carlos Rojas-Dotti et Jose Martínez-Lillo. « Exploring room-temperature transport of single-molecule magnet-based molecular spintronics devices using the magnetic tunnel junction as a device platform ». RSC Advances 10, no 22 (2020) : 13006–15. http://dx.doi.org/10.1039/c9ra09003g.

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Giansiracusa, Marcus J., Susan Al-Badran, Andreas K. Kostopoulos, George F. S. Whitehead, David Collison, Floriana Tuna, Richard E. P. Winpenny et Nicholas F. Chilton. « A large barrier single-molecule magnet without magnetic memory ». Dalton Transactions 48, no 29 (2019) : 10795–98. http://dx.doi.org/10.1039/c9dt01791g.

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11

Vonci, Michele, et Colette Boskovic. « Polyoxometalate-Supported Lanthanoid Single-Molecule Magnets ». Australian Journal of Chemistry 67, no 11 (2014) : 1542. http://dx.doi.org/10.1071/ch14166.

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Polyoxometalates are robust and versatile multidentate oxygen-donor ligands, eminently suitable for coordination to trivalent lanthanoid ions. To date, 10 very different structural families of such complexes have been found to exhibit slow magnetic relaxation due to single-molecule magnet (SMM) behaviour associated with the lanthanoid ions. These families encompass complexes with between one and four of the later lanthanoid ions: Tb, Dy, Ho, Er, and Yb. The lanthanoid coordination numbers vary between six and eleven and a range of coordination geometries are evident. The highest energy barrier to magnetisation reversal measured to date for a lanthanoid–polyoxometalate SMM is Ueff/kB = 73 K for the heterodinuclear Dy–Eu compound (Bu4N)8H4[DyEu(OH)2(γ-SiW10O36)2].
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Shen, Yongbing, Hiroshi Ito, Haitao Zhang, Hideki Yamochi, Seiu Katagiri, Shinji K. Yoshina, Akihiro Otsuka et al. « Simultaneous manifestation of metallic conductivity and single-molecule magnetism in a layered molecule-based compound ». Chemical Science 11, no 41 (2020) : 11154–61. http://dx.doi.org/10.1039/d0sc04040a.

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A metallic single-molecule magnet was synthesised demonstrating simultaneous metallic conduction and excellent SMM properties at the same temperature range for the first time, with potential applications in molecule-based quantum spintronics.
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13

Wu, Dong-Fang, Kiyonori Takahashi, Masaru Fujibayashi, Naoto Tsuchiya, Goulven Cosquer, Rui-Kang Huang, Chen Xue, Sadafumi Nishihara et Takayoshi Nakamura. « Fluoride-bridged dinuclear dysprosium complex showing single-molecule magnetic behavior : supramolecular approach to isolate magnetic molecules ». RSC Advances 12, no 33 (2022) : 21280–86. http://dx.doi.org/10.1039/d2ra04119g.

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(Na+)(benzo[18]crown-6) forms a bamboo-like supramolecular architecture within the crystal. Dinuclear Dy complexes with polyoxometalate ligands embedded between bamboo nodes exhibited a clear single-molecule magnet (SMM) response.
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Miao, Lin, Mei-Jiao Liu, Man-Man Ding, Yi-Quan Zhang et Hui-Zhong Kou. « A Dy(III) Fluorescent Single-Molecule Magnet Based on a Rhodamine 6G Ligand ». Inorganics 9, no 7 (29 juin 2021) : 51. http://dx.doi.org/10.3390/inorganics9070051.

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The complexes of lanthanide metals, especially dysprosium, can generally exhibit excellent magnetic properties. By means of modifying ligands, dual functions or even multi-functions can be achieved. Here, we synthesized an eight-coordinate Dy(III) complex 1, [Dy(HL-o)2(MeOH)2](ClO4)3·4.5MeOH, which is single-molecule magnet (SMM), and the introduction of the rhodamine 6G chromophore in the ring-opened ligand HL-o realizes ligand-centered fluorescence in addition to SMM. Magnetic measurements and ab initio calculations indicate that the magnetic relaxation for complex 1 should be due to the Raman relaxation process. Studies on magneto-structural correlationship of the rhodamine salicylaldehyde hydrazone Dy(III) complexes show that the calculated energy of the first Kramers Doublet (EKD1) is basically related to the Ophenoxy-Dy-Ophenoxy bond angle, i.e., the larger Ophenoxy-Dy-Ophenoxy bond angle corresponds to a larger EKD1.
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15

Lyu, Deng-Ping, Jie-Yu Zheng, Quan-Wen Li, Jun-Liang Liu, Yan-Cong Chen, Jian-Hua Jia et Ming-Liang Tong. « Construction of lanthanide single-molecule magnets with the “magnetic motif” [Dy(MQ)4]− ». Inorganic Chemistry Frontiers 4, no 11 (2017) : 1776–82. http://dx.doi.org/10.1039/c7qi00393e.

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[Dy2(MQ)4(NO3)3]+ is SMM-silent (SMM = single-molecule magnet) owing to the unfavourable magnetic interactions. Introducing an additional “magnetic motif” [Dy(MQ)4] to diminish such interactions gave a trinuclear [Dy3(MQ)8(NO3)], which behaves as an SMM.
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16

Qiao, Shuiling, Jun Zhang, Sheng Zhang, Qi Yang, Qin Wei, Desuo Yang et Sanping Chen. « Field-induced single-molecule magnet (SMM) behavior of dinuclear DyIII system ». Inorganica Chimica Acta 469 (janvier 2018) : 57–65. http://dx.doi.org/10.1016/j.ica.2017.08.060.

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17

Wu, Yan-Fang, Zhao-Bo Hu, Lixia Quan, Leina Jing, Jinlei Zhang et Zilu Chen. « Single-molecule magnet achieved through topological tuning with sodium ions ». CrystEngComm 23, no 48 (2021) : 8490–97. http://dx.doi.org/10.1039/d1ce01382c.

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A triangular MnIII3-based 2D framework exhibiting SMM properties was achieved by tuning the topological arrangement of cluster units and the intra-unit parameters through the linkage of diamagnetic Na(i) ions.
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18

Yu, Wen, Frank Schramm, Eufemio Moreno Pineda, Yanhua Lan, Olaf Fuhr, Jinjie Chen, Hironari Isshiki, Wolfgang Wernsdorfer, Wulf Wulfhekel et Mario Ruben. « Single-molecule magnet behavior in 2,2’-bipyrimidine-bridged dilanthanide complexes ». Beilstein Journal of Nanotechnology 7 (28 janvier 2016) : 126–37. http://dx.doi.org/10.3762/bjnano.7.15.

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A series of 2,2’-bipyrimidine-bridged dinuclear lanthanide complexes with the general formula [Ln(tmhd)3]2bpm (tmhd = 2,2,6,6-tetramethyl-3,5-heptanedionate, bpm = 2,2’-bipyrimidine, Ln = Gd(III), 1; Tb(III), 2; Dy(III), 3; Ho(III), 4 and Er(III), 5) has been synthesized and characterized. Sublimation of [Tb(tmhd)3]2bpm onto a Au(111) surface leads to the formation of a homogeneous film with hexagonal pattern, which was studied by scanning tunneling microscopy (STM). The bulk magnetic properties of all complexes have been studied comprehensively. The dynamic magnetic behavior of the Dy(III) and Er(III) compounds clearly exhibits single molecule magnet (SMM) characteristics with an energy barrier of 97 and 25 K, respectively. Moreover, micro-SQUID measurements on single crystals confirm their SMM behavior with the presence of hysteresis loops.
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Wang, Chao, Shuang-Yan Lin, Jianfeng Wu, Sen-Wen Yuan et Jinkui Tang. « Employment of triketones to construct a dysprosium(iii) single-molecule magnet ». Dalton Transactions 44, no 10 (2015) : 4648–54. http://dx.doi.org/10.1039/c4dt03494e.

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May, Falk, Maarten R. Wegewijs et Walter Hofstetter. « Interaction of spin and vibrations in transport through single-molecule magnets ». Beilstein Journal of Nanotechnology 2 (18 octobre 2011) : 693–98. http://dx.doi.org/10.3762/bjnano.2.75.

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We study electron transport through a single-molecule magnet (SMM) and the interplay of its anisotropic spin with quantized vibrational distortions of the molecule. Based on numerical renormalization group calculations we show that, despite the longitudinal anisotropy barrier and small transverse anisotropy, vibrational fluctuations can induce quantum spin-tunneling (QST) and a QST-Kondo effect. The interplay of spin scattering, QST and molecular vibrations can strongly enhance the Kondo effect and induce an anomalous magnetic field dependence of vibrational Kondo side-bands.
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21

Grindell, Richard, Veacheslav Vieru, Thomas Pugh, Liviu F. Chibotaru et Richard A. Layfield. « Magnetic frustration in a hexaazatrinaphthylene-bridged trimetallic dysprosium single-molecule magnet ». Dalton Transactions 45, no 42 (2016) : 16556–60. http://dx.doi.org/10.1039/c6dt01763k.

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Gao, Hong-Ling, Li Jiang, Shuang Liu, Hai-Yun Shen, Wen-Min Wang et Jian-Zhong Cui. « Multiple magnetic relaxation processes, magnetocaloric effect and fluorescence properties of rhombus-shaped tetranuclear rare earth complexes ». Dalton Transactions 45, no 1 (2016) : 253–64. http://dx.doi.org/10.1039/c5dt03790e.

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23

Alexandropoulos, Dimitris I., Kuduva R. Vignesh, Theocharis C. Stamatatos et Kim R. Dunbar. « Rare “Janus”-faced single-molecule magnet exhibiting intramolecular ferromagnetic interactions ». Chemical Science 10, no 6 (2019) : 1626–33. http://dx.doi.org/10.1039/c8sc04384a.

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The unusual ferromagnetically coupled compound was prepared by the use of Me3SiN3 with the metal ions being exclusively bridged by end-on N3. Th cationic molecule is a rare example of a 3d-metal cluster exhibiting a “Janus”-faced SMM behavior for the dried and wet forms.
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Li, Qipeng, Yan Peng, Jinjie Qian, Tong Yan, Lin Du et Qihua Zhao. « A family of planar hexanuclear CoIII4LnIII2 clusters with lucanidae-like arrangement and single-molecule magnet behavior ». Dalton Transactions 48, no 34 (2019) : 12880–87. http://dx.doi.org/10.1039/c9dt02103e.

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A family of planar hexanuclear CoIII4LnIII2 clusters with lucanidae-like arrangement have been synthesized and structurally characterized. In addition, the single-molecule magnet (SMM) behavior is observed in 1.
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Wang, Long-Fei, Jiang-Zhen Qiu, Jun-Liang Liu, Yan-Cong Chen, Jian-Hua Jia, Jesús Jover, Eliseo Ruiz et Ming-Liang Tong. « Modulation of single-molecule magnet behaviour via photochemical [2+2] cycloaddition ». Chemical Communications 51, no 84 (2015) : 15358–61. http://dx.doi.org/10.1039/c5cc07073b.

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The first example of phototunable SMMs has been reported. Upon UV irradiation, the remarkable variations of the coordination sphere of Dy(iii) ions result in a magnetic transformation from the SMM behaviour to afield-induced slow relaxation via SCSC [2+2] cycloaddition reaction.
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Huang, Xing-Cai, Veacheslav Vieru, Liviu F. Chibotaru, Wolfgang Wernsdorfer, Shang-Da Jiang et Xin-Yi Wang. « Determination of magnetic anisotropy in a multinuclear TbIII-based single-molecule magnet ». Chemical Communications 51, no 52 (2015) : 10373–76. http://dx.doi.org/10.1039/c5cc03089g.

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Cui, Haiyan, Zhao-Bo Hu, Chao Chen, Huapeng Ruan, Yong Fang, Li Zhang, Yue Zhao, Gengwen Tan, You Song et Xinping Wang. « A high-spin diradical dianion and its bridged chemically switchable single-molecule magnet ». Chemical Science 12, no 29 (2021) : 9998–10004. http://dx.doi.org/10.1039/d1sc01932e.

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We report a triplet diradical dianion in magnesium complex with ΔEST = 0.94 kcal mol−1 (473 K). Its iron analog is the first single-molecule magnet bridged by a diradical dianion, and the SMM property is switched off through two-electron reduction.
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Dong, Hui-Ming, Yan Li, Zhong-Yi Liu, En-Cui Yang et Xiao-Jun Zhao. « A novel oxime-derived 3d–4f single-molecule magnet exhibiting two single-ion magnetic relaxations ». Dalton Transactions 45, no 29 (2016) : 11876–82. http://dx.doi.org/10.1039/c6dt02003h.

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A weak ferromagnetic coupled {Dy4Ni6} cluster with a butterfly-shaped DyIII4 core and four-coordinate diamagnetic NiII ions shows field-induced SMM behaviour with two overlapping thermally activated relaxations.
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Perlepe, Panagiota S., Diamantoula Maniaki, Evangelos Pilichos, Eugenia Katsoulakou et Spyros P. Perlepes. « Smart Ligands for Efficient 3d-, 4d- and 5d-Metal Single-Molecule Magnets and Single-Ion Magnets ». Inorganics 8, no 6 (29 mai 2020) : 39. http://dx.doi.org/10.3390/inorganics8060039.

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There has been a renaissance in the interdisciplinary field of Molecular Magnetism since ~2000, due to the discovery of the impressive properties and potential applications of d- and f-metal Single-Molecule Magnets (SMMs) and Single-Ion Magnets (SIMs) or Monometallic Single-Molecule Magnets. One of the consequences of this discovery has been an explosive growth in synthetic molecular inorganic and organometallic chemistry. In SMM and SIM chemistry, inorganic and organic ligands play a decisive role, sometimes equally important to that of the magnetic metal ion(s). In SMM chemistry, bridging ligands that propagate strong ferromagnetic exchange interactions between the metal ions resulting in large spin ground states, well isolated from excited states, are preferable; however, antiferromagnetic coupling can also lead to SMM behavior. In SIM chemistry, ligands that create a strong axial crystal field are highly desirable for metal ions with oblate electron density, e.g., TbIII and DyIII, whereas equatorial crystal fields lead to SMM behavior in complexes based on metal ions with prolate electron density, e.g., ErIII. In this review, we have attempted to highlight the use of few, efficient ligands in the chemistry of transition-metal SMMs and SIMs, through selected examples. The content of the review is purely chemical and it is assumed that the reader has a good knowledge of synthetic, structural and physical inorganic chemistry, as well as of the properties of SIMs and SMMs and the techniques of their study. The ligands that will be discussed are the azide ion, the cyanido group, the tris(trimethylsilyl)methanide, the cyclopentanienido group, soft (based on the Hard-Soft Acid-Base model) ligands, metallacrowns combined with click chemistry, deprotonated aliphatic diols, and the family of 2-pyridyl ketoximes, including some of its elaborate derivatives. The rationale behind the selection of the ligands will be emphasized.
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Benmansour, Samia, et Carlos J. Gómez-García. « Lanthanoid-Anilato Complexes and Lattices ». Magnetochemistry 6, no 4 (15 décembre 2020) : 71. http://dx.doi.org/10.3390/magnetochemistry6040071.

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In this review, we describe all the structurally characterized complexes containing lanthanoids (Ln, including La and group 3 metals: Y and Lu) and any anilato-type ligand (3,6-disubstituted-2,5-dihydroxy-1,4-benzoquinone dianion = C6O4X22−). We present all the anilato-Ln compounds including those where, besides the anilato-type ligand, there is one or more coligands or solvent molecules coordinated to the lanthanoid ions. We show the different structural types observed in these compounds: from discrete monomers, dimers and tetramers to extended 1D, 2D and 3D lattices with different topologies. We also revise the magnetic properties of these Ln-anilato compounds, including single-molecule magnet (SMM) and single-ion magnet (SIM) behaviours. Finally, we show the luminescent and electrochemical properties of some of them, their gas/solvent adsorption/absorption and exchange capacity and the attempts to prepare them as thin films.
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Fernandez Garcia, Guglielmo, Vincent Montigaud, Lucie Norel, Olivier Cador, Boris Le Guennic, Federico Totti et Fabrice Pointillart. « Redox-Active Dysprosium Single-Molecule Magnet : Spectro-Electrochemistry and Theoretical Investigations ». Magnetochemistry 5, no 3 (2 août 2019) : 46. http://dx.doi.org/10.3390/magnetochemistry5030046.

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The mononuclear single-molecule magnet (SMM) [Dy(tta)3(L)]⋅C6H14 (1) (where tta− = 2-thenoyltrifluoroacetonate and L = 4,5-bis(propylthio)-tetrathiafulvalene-2-(2-pyridyl)benzimidazole-methyl-2-pyridine) was studied by spectro-electrochemistry. The resulting electronic spectra of the three oxidation states 1, 1+∙, and 12+ were rationalized by time-dependent density functional theory (TD-DFT) calculations starting from the DFT optimized structures. The modulation of the magnetic anisotropy of the DyIII center upon oxidation was also inspected at the Complete Active Space Self-Consistent Field (CASSCF) level of calculation.
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Li, Hongdao, Zan Sun, Juan Sun, Lu Xi, Jianni Guo, Guifang Sun, Jing Xie, Yue Ma et Licun Li. « Single-molecule magnet behavior in a CuII-decorated {DyIII2} complex with nitronyl nitroxide biradicals ». Journal of Materials Chemistry C 6, no 8 (2018) : 2060–68. http://dx.doi.org/10.1039/c7tc05377k.

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Wang, Wen-Min, Rong-Xin Yue, Yu Gao, Mei-Jiao Wang, Sha-Sha Hao, Ying Shi, Xiao-Min Kang et Zhi-Lei Wu. « Large magnetocaloric effect and remarkable single-molecule-magnet behavior in triangle-assembled LnIII6 clusters ». New Journal of Chemistry 43, no 42 (2019) : 16639–46. http://dx.doi.org/10.1039/c9nj03921j.

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Two intriguing triangle-assembled LnIII6 clusters (1 and 2) have been synthesized. The magnetic study reveals that 1 displays a larger cryogenic magnetocaloric effect, while 2 exhibits remarkable SMM behaviors.
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Zhang, Haixia, Shuang-Yan Lin, Shufang Xue, Chao Wang et Jinkui Tang. « Acetato-bridged dinuclear lanthanide complexes with single molecule magnet behaviour for the Dy2 species ». Dalton Trans. 43, no 16 (2014) : 6262–68. http://dx.doi.org/10.1039/c3dt53366b.

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Langley, Stuart K., Daniel P. Wielechowski, Boujemaa Moubaraki, Brendan F. Abrahams et Keith S. Murray. « Magnetic Exchange Effects in {CrIII2DyIII2} Single Molecule Magnets Containing Alcoholamine Ligands ». Australian Journal of Chemistry 67, no 11 (2014) : 1581. http://dx.doi.org/10.1071/ch14207.

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The synthesis and magnetic characterisation of four new heterometallic {CrIII2DyIII2} complexes 2–5 are described. The present work follows on from a recently isolated complex [CrIII2DyIII2(OMe)2(O2CPh)4(mdea)2(NO3)2] (1) (mdeaH2 = N-methyldiethanolamine), which displayed impressive single molecule magnet (SMM) properties, notably highly coercive magnetic hysteresis loops below 3.5 K. Compounds 1–5 all display a planar butterfly type metallic core arrangement, with the DyIII ions occupying the central body positions and the CrIII ion the outer wing positions. The core is stabilized by the amine–diolate, and carboxylate bridging ligands. Variation of the amine–diolate ligand resulted in several structural analogues which maintain the same metallic core, but differ from the parent 1 in the outer ligand coordination environment. Magnetic studies reveal complexes 2–5 also display SMM behaviour, unambiguously confirmed via low temperature magnetic hysteresis loops, each displaying wide coercive fields, a rare occurrence for lanthanoid-based SMMs.
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Lefeuvre, Bertrand, Jessica Flores Gonzalez, Carlo Andrea Mattei, Vincent Dorcet, Olivier Cador et Fabrice Pointillart. « Chiral or Luminescent Lanthanide Single-Molecule Magnets Involving Bridging Redox Active Triad Ligand ». Inorganics 9, no 7 (23 juin 2021) : 50. http://dx.doi.org/10.3390/inorganics9070050.

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The reactions between the bis(1,10-phenantro[5,6-b])tetrathiafulvalene triad (L) and the metallo-precursors Yb(hfac)3(H2O)2 (hfac− = 1,1,1,5,5,5-hexafluoroacetylacetonato anion) and Dy(facam)3 (facam− = 3-trifluoro-acetyl-(+)-camphorato anion) lead to the formation of two dinuclear complexes of formula [Yb2(hfac)6(L)]·2(C7H16) ((1)·2(C7H16)) and [Dy2((+)facam)6(L)]·2(C6H14) ((2)·2(C6H14)). The X-ray structures reveal that the L triad bridges two terminal Yb(hfac)3 or Dy(facam)3 units. (1)·2(C7H16) behaved as a near infrared YbIII centered emitter and a field-induced Single-Molecule Magnet (SMM) while (2)·2(C6H14) displayed SMM behavior in both zero- and in-dc field. The magnetization mainly relaxes through a Raman process for both complexes under an optimal applied magnetic field.
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Qin, Yaru, Yu Ge, Shasha Zhang, Hao Sun, Yu Jing, Yahong Li et Wei Liu. « A series of Ln4III clusters : Dy4 single molecule magnet and Tb4 multi-responsive luminescent sensor for Fe3+, CrO42−/Cr2O72− and 4-nitroaniline ». RSC Advances 8, no 23 (2018) : 12641–52. http://dx.doi.org/10.1039/c8ra01485j.

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Five tetranuclear lanthanide clusters were synthesized. Dy4 complex exhibits single molecule magnet (SMM) behavior and Tb4 compound shows sensing properties towards Fe3+, CrO42−, Cr2O72− and 4-nitroaniline (4-NA).
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38

Zhang, Li, Peng Zhang, Lang Zhao, Jianfeng Wu, Mei Guo et Jinkui Tang. « Single-molecule magnet behavior in an octanuclear dysprosium(iii) aggregate inherited from helical triangular Dy3 SMM-building blocks ». Dalton Transactions 45, no 26 (2016) : 10556–62. http://dx.doi.org/10.1039/c6dt01718e.

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A novel supramolecular octanuclear dysprosium(iii) cluster coupling two original helical Dy3 SMM-building blocks is isolated and shows typical SMM behavior under zero dc field inherited from its Dy3 helical precursor.
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Wang, Wen-Min, Mei-Jiao Wang, Sha-Sha Hao, Qin-Yu Shen, Mei-Ling Wang, Qiao-Ling Liu, Xiao-Fen Guan, Xiu-Tang Zhang et Zhi-Lei Wu. « ‘Windmill’-shaped LnIII4 (LnIII = Gd and Dy) clusters : magnetocaloric effect and single-molecule-magnet behavior ». New Journal of Chemistry 44, no 11 (2020) : 4631–38. http://dx.doi.org/10.1039/c9nj05317d.

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Bai, Chao, Chuan-Ti Li, Huai-Ming Hu, Bin Liu, Jin-Dian Li et Ganglin Xue. « Dy(iii) zig-zag chains assembled in a 3D framework with single-molecule magnet behaviour ». Dalton Transactions 48, no 3 (2019) : 814–17. http://dx.doi.org/10.1039/c8dt03617a.

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41

Chen, Sihuai, Valeriu Mereacre, George E. Kostakis, Christopher E. Anson et Annie K. Powell. « Systematic studies of hexanuclear {MIII4LnIII2} complexes (M = Fe, Ga ; Ln = Er, Ho) : structures, magnetic properties and SMM behavior ». Inorganic Chemistry Frontiers 4, no 6 (2017) : 927–34. http://dx.doi.org/10.1039/c7qi00091j.

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The first heterometallic GaIII–ErIII single-molecule magnet has been synthesized and the role of GaIII in extracting the FeIII–ErIII and ErIII–ErIII interaction has been assessed.
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42

Galangau, Olivier, Jessica Flores Gonzalez, Vincent Montigaud, Vincent Dorcet, Boris le Guennic, Olivier Cador et Fabrice Pointillart. « Dysprosium Single-Molecule Magnets Involving 1,10-Phenantroline-5,6-dione Ligand ». Magnetochemistry 6, no 2 (15 avril 2020) : 19. http://dx.doi.org/10.3390/magnetochemistry6020019.

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The two mononuclear complexes of the formula [Dy(tta)3(L)] (1) and [Dy(hfac)3(L)] (2) (where tta- = 2-thenoytrifluoroacetylacetonate and hfac- = 1,1,1,5,5,5-hexafluoroacetylacetonate) were obtained from the coordination reaction of the Dy(tta)3·2H2O or Dy(hfac)3·2H2O units with the 1,10-phenantroline-5,6-dione ligand (L). Their structures have been determined by X-ray diffraction studies on single crystals, and they revealed a supramolecular assembly of tetramers through σ-π interactions. Both complexes displayed a Single-Molecule Magnet (SMM) behavior without an external applied magnetic field. Magnetic relaxation happened through Orbach, Raman and Quantum Tunneling of the Magnetization (QTM). Wavefunction theory calculations were realized to rationalize the magnetic properties.
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Cosquer, Goulven, Brian K. Breedlove et Masahiro Yamashita. « Remote control of SMM behaviour via DTE ligands ». Dalton Transactions 44, no 7 (2015) : 2936–42. http://dx.doi.org/10.1039/c4dt02618g.

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Xiang, Jing, Jia-Jia Liu, Xiao-Xiang Chen, Li-Hui Jia, Fei Yu, Bing-Wu Wang, Song Gao et Tai-Chu Lau. « Slow magnetic relaxation in a mononuclear 8-coordinate Fe(ii) complex ». Chemical Communications 53, no 9 (2017) : 1474–77. http://dx.doi.org/10.1039/c6cc09801k.

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The synthesis and structure of an 8-coordinate Fe(ii) compound [FeII(L1)2](ClO4)2 (1) with a [FeN4O4] core are reported. It is the first example of an 8-coordinate Fe(ii) complex exhibiting field-induced single-molecule magnet (SMM) behaviour.
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Grizzle, Andrew, Christopher D'Angelo, José Martínez-Lillo et Pawan Tyagi. « Spin state of a single-molecule magnet (SMM) creating long-range ordering on ferromagnetic layers of a magnetic tunnel junction – a Monte Carlo study ». RSC Advances 11, no 51 (2021) : 32275–85. http://dx.doi.org/10.1039/d1ra05473b.

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Paramagnetic single-molecule magnets (SMMs) interacting with the ferromagnetic electrodes of a magnetic tunnel junction (MTJ) produce new molecular spintronics testbed and highly ordered magnetic metamaterial promising for room temperature.
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46

Chahine, Ali Y., Wasinee Phonsri, Keith S. Murray, David R. Turner et Stuart R. Batten. « Coordination polymers of a bis-isophthalate bridging ligand with single molecule magnet behaviour of the CoII analogue ». Dalton Transactions 49, no 16 (2020) : 5241–49. http://dx.doi.org/10.1039/c9dt04606b.

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47

Wang, Wen-Min, Lei Huai, Xi-Wen Wang, Kai-Jun Jiang, Hai-Yun Shen, Hong-Ling Gao, Ming Fang et Jian-Zhong Cui. « Structures, magnetic refrigeration and single molecule-magnet behavior of five rhombus-shaped tetranuclear Ln(iii)-based clusters ». New Journal of Chemistry 44, no 25 (2020) : 10266–74. http://dx.doi.org/10.1039/d0nj01969k.

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Nemec, Ivan, Radovan Herchel, Marek Machata et Zdeněk Trávníček. « Tetranuclear Ni(ii) and Co(ii) Schiff-base complexes with an M4O6 defective dicubane-like core : zero-field SMM behavior in the cobalt analogue ». New Journal of Chemistry 41, no 19 (2017) : 11258–67. http://dx.doi.org/10.1039/c7nj02281f.

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Two tetranuclear Ni4 and Co4 complexes were prepared and characterized. Their magnetic properties were thoroughly studied and it was revealed that the Co4 compound behaves as a zero-field single-molecule magnet.
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Suzuki, Kosuke, Rinta Sato, Takuo Minato, Masahiro Shinoe, Kazuya Yamaguchi et Noritaka Mizuno. « A cascade approach to hetero-pentanuclear manganese-oxide clusters in polyoxometalates and their single-molecule magnet properties ». Dalton Transactions 44, no 32 (2015) : 14220–26. http://dx.doi.org/10.1039/c5dt01363a.

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Hetero-pentanuclear clusters {MMn4} with large uniaxial magnetic anisotropy and SMM behavior were successfully synthesized by sequential introduction of metal cations into the trivacant lacunary polyoxometalates.
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Hoeke, Veronika, Anja Stammler, Hartmut Bögge, Jürgen Schnack et Thorsten Glaser. « Strong and Anisotropic Superexchange in the Single-Molecule Magnet (SMM) [MnIII6OsIII]3+ : Promoting SMM Behavior through 3d–5d Transition Metal Substitution ». Inorganic Chemistry 53, no 1 (18 décembre 2013) : 257–68. http://dx.doi.org/10.1021/ic4022068.

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