Paramagnetic Molecular Semiconductors Combining Anisotropic Magnetic Ions with TCNQ Radical Anions
Paramagnetic Molecular Semiconductors Combining Anisotropic Magnetic Ions with TCNQ Radical Anions
复制标题
各向异性磁离子与 TCNQ 自由基阴离子相结合的顺磁分子半导体
DOI：
10.1021/acs.inorgchem.1c01140
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发表时间：
2021
影响因子：
4.6
通讯作者：
Shatruk, Michael
中科院分区：
文献类型：
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作者：
Üngör, Ökten;Burrows, Maylu;Liu, Tianhan;Bodensteiner, Michael;Adhikari, Yuwaraj;Hua, Zhenqi;Casas, Brian;Balicas, Luis;Xiong, Peng;Shatruk, Michael
本文报道了顺磁性金属配合物[Co(DMF)4(TCNQ)2](TCNQ)2(1)、[La(DMF)8(TCNQ)](TCNQ)5(2)和[Nd(DMF)7(TCNQ)](TCNQ)5(3) （DMF =N，N-二甲基甲酰胺，TCNQ = 7,7,8,8-四氰喹诺二甲烷）的合成、磁性和输运性质。这三种化合物都含有分数电荷TCNQδ−阴离子（0 < δ < 1）和单核配合阳离子，其中金属中心的配位环境包括几个DMF分子和一个或两个末端配位的TCNQδ−阴离子。配位的TCNQδ−阴离子与非配位的TCNQδ−阴离子参与π -π堆叠相互作用，形成柱状亚结构，提供了有效的电荷传递途径。结果，与温度相关的电导率测量表明，所有三种化合物都表现出半导体行为。
We report the synthesis, magnetic properties, and transport properties of paramagnetic metal complexes, [Co(DMF)4(TCNQ)2](TCNQ)2(1), [La(DMF)8(TCNQ)](TCNQ)5(2), and [Nd(DMF)7(TCNQ)](TCNQ)5(3) (DMF =N,N-dimethylformamide, TCNQ = 7,7,8,8-tetracyanoquinodimethane). All three compounds contain fractionally charged TCNQδ−anions (0 < δ < 1) and mononuclear complex cations in which the coordination environment of a metal center includes several DMF molecules and one or two terminally coordinated TCNQδ−anions. The coordinated TCNQδ−anions participate in π–π stacking interactions with noncoordinated TCNQδ−anions, forming columnar substructures that provide efficient charge-transporting pathways. As a result, temperature-dependent conductivity measurements demonstrate that all three compounds exhibit semiconducting behavior.