Copper ion salts of arylthiotetrathiafulvalenes: synthesis, structure diversity and magnetic properties.
Copper ion salts of arylthiotetrathiafulvalenes: synthesis, structure diversity and magnetic properties.
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DOI:
10.3762/bjoc.11.95
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发表时间:
2015
影响因子:
2.7
通讯作者:
Shao X
中科院分区:
文献类型:
--
作者:
Ma L;Sun J;Lu X;Zhang S;Qi H;Liu L;Shao Y;Shao X
The combination of CuBr2 and arylthio-substituted tetrathiafulvalene derivatives (1–7) results in a series of charge-transfer (CT) complexes. Crystallographic studies indicate that the anions in the complexes, which are derived from CuBr2, show diverse configurations including linear [Cu(I)Br2]–, tetrahedral [Cu(II)Br4]2–, planar [Cu(II)2Br6]2–, and coexistence of planar [Cu(II)Br4]2– and tetrahedral [Cu(II)Br3]– ions. On the other hand, the TTFs show either radical cation or dication states that depend on their redox potentials. The central TTF framework on most of TTFs is nearly planar despite the charge on them, whereas the two dithiole rings on molecule 4 in complex 4·CuBr4 are significantly twisted with a dihedral angle of 38.3°. The magnetic properties of the complexes were elucidated. The temperature-dependent magnetic susceptibility of complex 5·Cu2Br6 shows the singlet–triplet transition with coupling constant J = −248 K, and that of 3·(CuBr4)0.5·CuBr3·THF shows the abrupt change at 270 K caused by the modulation of intermolecular interactions. The thermo variation of magnetic susceptibility for the other complexes follows the Curie–Weiss law, indicating the weak antiferromagnetic interaction at low temperature.
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影响因子:
46.2
作者:
BRYCE, MR
通讯作者:
BRYCE, MR
影响因子:
--
作者:
BONDI, A
通讯作者:
BONDI, A
影响因子:
1.7
作者:
Ardavan, Arzhang;Brown, Stuart;Wosnitza, Jochen
通讯作者:
Wosnitza, Jochen
影响因子:
4.6
作者:
INOUE, MB;INOUE, M;NEBESNY, KW
通讯作者:
NEBESNY, KW
DOI:
10.1051/jphyslet:0198000410409500
发表时间:
1980-01-01
期刊:
JOURNAL DE PHYSIQUE LETTRES
影响因子:
--
作者:
JEROME, D;MAZAUD, A;BECHGAARD, K
通讯作者:
BECHGAARD, K