标题:Cyanide-bridged polynuclear heterobimetallic complexes: synthesis, crystal structures, and magnetic properties
作者:Lan, Wenlong; Wang, Xueting; Yang, Lu; Si, Weijiang; Zhuang, Shujuan; Liu, Hui; Liu, Qingyun; Zhang, Daopeng
作者机构:[Lan, Wenlong; Wang, Xueting; Yang, Lu; Si, Weijiang; Zhuang, Shujuan; Liu, Hui; Zhang, Daopeng] Shandong Univ Technol, Coll Chem & Chem Engn, Zibo 25 更多
通讯作者:Si, Weijiang;Si, WJ;Zhang, DP
通讯作者地址:[Si, WJ; Zhang, DP]Shandong Univ Technol, Coll Chem & Chem Engn, Zibo 255049, Peoples R China.
来源:TRANSITION METAL CHEMISTRY
出版年:2019
卷:44
期:4
DOI:10.1007/s11243-019-00304-8
摘要:The reactions of [Mn-III(3-EtOSalen)(H2O)(2)]ClO4 (Salen=N,N-ethylenebis(salicylideneaminato)dianion) with K-3[M(CN)(8)] (M=Mo, W) have been investigated, from which cyanide-bridged hexanuclear Mo-Mn and binuclear W-Mn complexes formulated as {[Mn(3-EtOSalen)(H2O)](4)[Mn(3-EtOSalen)(CH3OH)][MoCN8]}(CN)(2)CH3CNH2O (1) and {[Mn(3-EtOSalen)(H2O)(2)][Mn(3-EtOSalen)(H2O)(EtOH][Mn-III(3-EtOSalen)(H2O) W(CN)(8)]}0.5CH(3)OH (2), respectively, were obtained and characterized by elemental analysis, IR spectroscopy and X-ray crystal structure determination. X-ray diffraction analysis for complex 1 shows that it has a cyanide-bridged cationic hexanuclear Mn5Mo structure in which two free and disordered CN- ions from the cyanide precursor are present as balance anions, while the [Mo(CN)(8)](3-) ion acting as a pentadentate ligand connects five Schiff base manganese(III) units. In complex 2, the [W(CN)(8)](3-) ion is coordinated with a single Schiff base manganese unit by one of its cyanide groups, so forming a cyanide-bridged anionic binuclear structure whose dinegative charge is balanced by two free Schiff base manganese cations. Both of these cyanide-bridged complexes can be considered as self-complementary, such that the coordinated aqua ligand from one complex and the O-4 compartment from the Schiff base ligand of the neighboring complex form a supramolecular two-dimensional network and a one-dimensional ladder-like double-chain structure, respectively. Investigation of the magnetic properties of these complexes reveals antiferromagnetic interactions within the cyanide-bridged Mn-Mo/W units. The magnetic susceptibilities of both complexes have been modeled.
收录类别:EI;SCIE
资源类型:期刊论文
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