Synthesis, crystal structure, and characterization of charge-transfer salt: (BEDT-TTF)5[Fe(C2O4)3]·(H2O)2·CH2Cl2 (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene)

Synthesis, crystal structure, and characterization of charge-transfer salt: (BEDT-TTF)5[Fe(C2O4)3]·(H2O)2·CH2Cl2 (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene)
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电荷转移盐的合成、晶体结构和表征:(BEDT-TTF)5[Fe(C2O4)3]·(H2O)2·CH2Cl2 (BEDT-TTF = 双(乙撑二硫)四硫富瓦烯)

DOI:
10.1039/b910483f
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发表时间:
2009
期刊:
影响因子:
3.1
通讯作者:
Yanjun Guo
Yanjun Guo
中科院分区:
化学3区
文献类型:
--
作者:
Bin Zhang;Yan Zhang;Fen Liu;Yanjun Guo

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本文报道了一种BEDT-TTF及其金属配合物的电荷转移盐:(BEDT-TTF)_5Fe(C_2O_4)_3(H_2O)_2CH_2Cl_2(1)的合成、晶体结构、拉曼光谱、XP光谱、电导率和磁性。在(Et 4 N)3Fe(C2 O 4)3存在下,在CH 2Cl 2溶液中电化学氧化中性BEDT-TTF产生1的晶体。1晶体为三斜晶系,晶胞参数为:a = 11.0197(1)A,B = 11.5010(2)A,c = 35.2773(5)A,α = 89.1256(4)°,β = 85.2348(5)°,γ = 70.0039(4)°,V = 4186.5(1)A3,Z = 2,P。1与已知的电荷转移盐(BEDT-TTF)4AM(C2 O 4)3S(A = K+、NH 4+和H3 O+,S =溶剂)在组成和晶体结构上不同。两个施主层和阴离子层沿1中的c轴沿着交替堆叠。在阴离子层中有一种对映体,晶体保持外消旋。溶剂分子H2O通过氢键与两个阴离子结合,CH 2Cl 2存在于阴离子形成的空穴中,而不是像(BEDT-TTF)4AM(C2 O 4)3S那样存在于[AM(C2 O 4)3]2−的蜂窝状口袋中。根据TTF核的键长将给体分子的形式电荷分别归属为+0.5和+1.0,并与拉曼和XP光谱相对应。1是一个顺磁半导体,σrt = 4 S cm−1。
The synthesis, crystal structure, Raman spectra, XP spectra, conductivity and magnetism of a charge-transfer salt of BEDT-TTF and oxalato-metalate: (BEDT-TTF)5Fe(C2O4)3(H2O)2CH2Cl2 (1) are described and interpreted. Electrochemical oxidation of neutral BEDT-TTF in the presence of (Et4N)3Fe(C2O4)3 in CH2Cl2 solution yields crystals of 1. 1 crystallizes in triclinic form with cell parameters: a = 11.0197(1)A, b = 11.5010(2) A, c = 35.2773(5) A, α = 89.1256(4)°, β = 85.2348(5)°, γ = 70.0039(4)°, V = 4186.5(1) A3, Z = 2, P in 180 K. 1 is different from the well known charge-transfer salt (BEDT-TTF)4AM(C2O4)3S (A = K+, NH4+ and H3O+, S = solvent) in composition and crystal structure. Two donor layers and anion layers stack alternately along the c axis in 1. There is one enantiomer in an anion layer and the crystal remains racemized. The solvent molecule H2O bonds to two anions through hydrogen bonds and CH2Cl2 exists in the cavity of the parallelogram formed by anions but not a pocket of honeycomb of [AM(C2O4)3]2− as in (BEDT-TTF)4AM(C2O4)3S. The formal charge of donor molecules was assigned to +0.5 and +1.0 from bond lengths in TTF core and corresponded to Raman and XP spectra. 1 is a paramagnetic semiconductor with σrt = 4 S cm−1.
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DOI: --
发表时间: 2004
影响因子: 4.9
作者:
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发表时间: --
期刊:
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第一种质子传导金属离子自由基盐
DOI: --
发表时间: 2005
期刊: Angew.Chem.Int.Ed. 44
影响因子: --
作者:
A.Akutsu-Sato;et al.
通讯作者: et al.