Auxiliary Ligand-Dependent Assembly of Several Ni/Ni−Cd Compounds with N2O2 Donor Tetradentate Symmetrical Schiff Base Ligand
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- 作者：Ying-Ying Ge ; Guo-Bi Li ; Hua-Cai Fang ; Xu-Lin Zhan ; Zhi-Gang Gu ; Jin-Hao Chen ; Feng Sun ; Yue-Peng Cai ; Praveen K. Thallapally
- 刊名：Crystal Growth & Design
- 出版年：2010
- 出版时间：November 3, 2010
- 年：2010
- 卷：10
- 期：11
- 页码：4987-4994
- 全文大小：1123K
- 年卷期：v.10,no.11(November 3, 2010)
- ISSN：1528-7505
文摘
Several low-dimensional Ni/Ni−Cd complexes containing the N2O2 donor tetradentate symmetrical Schiff base ligand bis(acetylacetone)ethylene-diamine (sy-H2L2), namely, [Ni(sy-L2)]2·HLa·ClO4 (2), (HLa)2·(ClO4)·(NO3) (3), [Ni(sy-L2)X]2](4,4′-bipy) (where La = 5,7-dimethyl-3,6-dihydro-2H-1,4-diazepine, X = ClO4 (4), X = NO3 (5), [Ni(sy-L2)Cd(SCN)2]n (6) and [Ni(sy-L2)·Cd(N3)2]n (7), have been synthesized from [Ni(sy-L2)]2·H2O (1). Complex 2 is a three-component discrete assembly generated from a (HLa)+ moiety bridged with a [Ni(sy-L2)] unit and ClO4− anion. A solution containing complex 2 and Cd(NO3)2 results in a mixture of 1 and 3. Further recrystallization of 1 and 3 with various auxiliary ligands provides coordination complexes 4−7 stabilized by weak hydrogen bonds in which 6 and 7 represent the first one-dimensional heteronuclear complexes based on the symmetric acacen-base Schiff base ligand.