Synthesis and Characterization of 3d-3d Homo- and Heterometallic Coordination Polymers with Mixed Ligands
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- 作者：Zhi Su ; Zheng-Shuai Bai ; Jian Fan ; Jing Xu ; Wei-Yin Sun
- 刊名：Crystal Growth & Design
- 出版年：2009
- 出版时间：December 2, 2009
- 年：2009
- 卷：9
- 期：12
- 页码：5190-5196
- 全文大小：943K
- 年卷期：v.9,no.12(December 2, 2009)
- ISSN：1528-7505
文摘
Two new 3d-3d homo- and heterometallic coordination polymers with mixed organic ligands, namely, [Zn2(IBC)(BTC)(H2O)]·H2O (1) and [CdCo(IBC)(BTC)(H2O)] (2) [HIBC = 3,5-di(1H-imidazol-1-yl)benzoic acid, H3BTC = 1,3,5-benzenetricarboxylic acid], have been synthesized and fully characterized by X-ray diffraction, IR, elemental analysis, thermogravimetric analysis, photoluminescence, and magnetic measurements. Complex 1 with homonuclear Zn(II) is a rare three-dimensional (3D) (3,6)-connected rtl (rutile) framework with [Zn2O2] and [Zn2(OCO)2] two different kinds of binuclear Zn(II) secondary building units (SBUs). While complex 2 with heteronuclear Cd(II) and Co(II) atoms is a 3D framework based on [Cd2O2] and [Co2O2] SBUs. In 2, the SBUs are extended into an infinite eight-connected rare hex-type (hexagonal-type) network. The binuclear [Co2O2] SBU in 2 shows antiferromagnetic interactions. Both 1 and 2 were constructed by the same ligands, however with completely different structures and topologies, the results revealed that the coordination geometries of the metal centers have a subtle influence on the structure of the complexes.