Polynuclear Cyanide-Bridged Heterobimetallic Complexes Based-on Pentacyanometallates: Synthesis, Crystal Structure and Magnetic Property

IF 0.4 4区化学 Q4 CRYSTALLOGRAPHY Journal of Chemical Crystallography Pub Date : 2022-10-20 DOI:10.1007/s10870-022-00967-9

Yu Xin, Zhijie Xu, Shuo Meng, Tong Cao, Mingjian Zhang, Xiaoyi Duan, Zhen Zhou, Daopeng Zhang

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Abstract

Three new cyanide-bridged heterobimetallic complexes {[Cu(L)]₂[Cr(CN)₅(NO)]}ClO₄·2H₂O (1), {{[Cu(cyclam)][Fe(CN)₅(NO)]}·H₂O}_n (2), {{[Cu(cyclam)]₃[Cr(CN)₅(NO)]₂}·CH₃OH·4H₂O}_n (3) (L=2,12-dimethyl-3,7,11,17-tetraazabicyclo [11.3.1] heptadeca-1 (17), 13, 15-triene, cyclam=1,4,8,11-tetraazacyclodecane) have been successfully assembled from the pentacyanometalates and two copper(II) compounds and characterized by elemental analysis, IR spectroscopy and X-ray structure determination. X-ray structural analysis revealed that the Complex 1 is a cationic trinuclear CrCu₂ entity with the positive charge balanced by ClO₄⁻ ion, while complexes 2 and 3 were structurally characterized showing a 1D chain. The magnetic properties of the reported cyanide-bridged complexes have been experimentally studied and theoretically simulated, disclosing the ferromagnetic interaction between the Cr(I) ion and the Cu(II) ion through the cyanide bridge.

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基于五氰金属酸盐的多核氰化物桥接杂双金属配合物:合成、晶体结构和磁性能

以五氰金属酸盐和两种铜(II)化合物为原料，成功地组装了三个新的氰化物桥接的杂双金属配合物{[Cu(L)]2[Cr(CN)5(NO)]}ClO4·2H2O(1)、{{[Cu(环)][Fe(CN)5(NO)]}·H2O}n(2)、{{[Cu(环)]3[Cr(CN)5(NO)]2}·CH3OH·4H2O}n (3) (L=2,12-二甲基-3,7,11,17-四氮杂环-1(17)，13,15 -三烯，环am=1,4,8,11-四氮杂环癸烷)，并通过元素分析、红外光谱和x射线结构测定对其进行了表征。x射线结构分析表明，配合物1是一个阳离子三核CrCu2实体，正电荷由ClO4−离子平衡，而配合物2和3在结构上表现为一维链。对所报道的氰化物桥接配合物的磁性进行了实验研究和理论模拟，揭示了Cr(I)离子和Cu(II)离子通过氰化物桥接之间的铁磁相互作用。图形抽象

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来源期刊

Journal of Chemical Crystallography 化学-光谱学

CiteScore

1.50

自引率

12.50%

发文量

审稿时长

6.3 months

期刊介绍： Journal of Chemical Crystallography is an international and interdisciplinary publication dedicated to the rapid dissemination of research results in the general areas of crystallography and spectroscopy. Timely research reports detail topics in crystal chemistry and physics and their relation to problems of molecular structure; structural studies of solids, liquids, gases, and solutions involving spectroscopic, spectrometric, X-ray, and electron and neutron diffraction; and theoretical studies.