Magnetic Studies of Metal Ion Coordination Clusters Encapsulated with Thiacalixarene

2014 ◽  
Vol 67 (11) ◽  
pp. 1588 ◽  
Author(s):  
Rebecca O. Fuller ◽  
Karen L. Livesey ◽  
Robert C. Woodward ◽  
Allan J. McKinley ◽  
Brian W. Skelton ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ferromagnetic Coupling ◽  
Temperature Dependent ◽  
Magnetic Studies ◽  
Teller Distortion ◽  
Ferromagnetic Exchange ◽  
Arene Complex ◽  
Magnetic Investigation ◽  
Jahn Teller ◽  
Jahn Teller Distortion

Three thiacalix[4]arene polynuclear complexes have been prepared by literature methods for detailed magnetic investigation. The [Fe3O(L)2] (LH4 = thiacalix[4]arene) complex is found to exhibit interesting anti-ferromagnetic exchange coupling. Jahn–Teller distortion in [Cu4(L)2] complex leads to strong anti-ferromagnetic coupling at low temperatures. The temperature-dependent susceptibility of the [(μ-H2O)Eu2(LH)2(DMF)4] complex is well described by a ground state involving the thermal population of the lowest three excited states.

A New One-Dimensional Bimetallic Complex: Cu(en)2Fe(CN)5(NO). Synthesis, Crystal Structure and Magnetic Behaviour

1998 ◽  
Vol 51 (8) ◽  
pp. 661 ◽  
Author(s):  
Hui-Zhong Kou ◽  
Hong-Mei Wang ◽  
Dai-Zheng Liao ◽  
Peng Cheng ◽  
Zong-Hui Jiang ◽  
...  
Keyword(s):  
Copper Complexes ◽  
Bond Distance ◽  
Chain Structure ◽  
Magnetic Behaviour ◽  
Teller Distortion ◽  
Magnetic Investigation ◽  
Jahn Teller ◽  
Cyanide Ligands ◽  
Jahn Teller Distortion ◽  
Shed Light

The nitrosyl cyanide Cu(en)2Fe(CN)5(NO) was prepared by the reaction of Cu(en)2Cl2 and Na2 [Fe(CN)5(NO)].2H2O in aqueous solution. Single-crystal X-ray structure analysis revealed that the complex assumes a cyanide-bridged chain structure in which iron(II) is coordinated by five cyanide ligands and a nitrosyl group, and copper(II) is coordinated by two ethylenediamine ligands and two bridging cyanide ligands. The copper centres display a typical Jahn–Teller distortion characteristic of octahedral copper complexes with bond distance deviations in lattice symmetry from octahedral ideality: Cu-N(equatorial, mean) 2·010(3) Å and Cu-N(axial, mean) 2·569(3) Å. Infrared and ultraviolet studies shed light on the above molecular structure. A magnetic investigation showed the presence of a weak antiferromagnetic interaction (J = -1·06 cm-1) between the copper atoms within each chain through the diamagnetic Fe(CN)5(NO)2- ions.

One-dimensional magnetic chain composed of CuII and polychlorinated dipyridylphenylmethyl radical: temperature-dependent Jahn–Teller distortion correlated to π-conjugation and magnetic properties

2019 ◽  
Vol 48 (21) ◽  
pp. 7090-7093
Author(s):  
Shun Kimura ◽  
Hikaru Uchida ◽  
Tetsuro Kusamoto ◽  
Hiroshi Nishihara
Keyword(s):  
Magnetic Properties ◽  
Temperature Dependent ◽  
Radical Chain ◽  
Teller Distortion ◽  
One Dimensional ◽  
Magnetic Chain ◽  
Jahn Teller ◽  
Jahn Teller Distortion

The Jahn–Teller distortion, π-conjugation mode, and magnetic properties were coupled in the ferromagnetic CuII-radical chain, resulting in unique properties.

Temperature-dependent X-ray absorption near edge spectroscopy of doped LaMnO3: Ion-size and the Jahn–Teller distortion effects

2009 ◽  
Vol 404 (8-11) ◽  
pp. 1404-1408 ◽  
Author(s):  
Y.T. Tsai ◽  
W.J. Chang ◽  
S.W. Huang ◽  
J.-Y. Lin ◽  
J.Y. Lee ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Teller Distortion ◽  
X Ray ◽  
Jahn Teller ◽  
Ion Size ◽  
X Ray Absorption ◽  
Jahn Teller Distortion

Jahn–Teller Distortion: Magnetic Studies of Vanadium Tetrachloride

1968 ◽  
Vol 48 (12) ◽  
pp. 5544-5549 ◽  
Author(s):  
Rolf B. Johannesen ◽  
George A. Candela ◽  
Tung Tsang
Keyword(s):  
Magnetic Studies ◽  
Teller Distortion ◽  
Jahn Teller ◽  
Vanadium Tetrachloride ◽  
Jahn Teller Distortion
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