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- Title
Synthesis, Structures, and Properties of New Discrete Hetero-tetranuclear Metallocycle Complexes Based on Macrocyclic Oxamide Metalloligands.
- Authors
Shi, Xiao‐Ming; Li, Xiao‐Zeng; Ding, Bei‐Bei; Zhu, Li‐Na
- Abstract
Two new discrete hetero-tetranuclear metallocycle complexes based on metalloligands, {[Zn2(NiL1)2(H2O)6] ·4H2O} n ( 1) and {[Ca2(NiL2)2(CH3OH)0.5(H2O)7] ·CH3OH ·2H2O} n ( 2) were synthesized under self-assembly conditions and structurally determined. X-ray diffraction analyses revealed that the two compounds involve the discrete metallocyclic units, which serve as building blocks to further expand to three-dimensional supramolecular frameworks through second interactions such as hydrogen bonds and π ···π stacking interactions. The central ZnII and CaII ions of the compounds 1 and 2 are bridged by macrocyclic oxamido metalloligands fusing the metallocycle with 'head-to-tail' arrangement. The metallocycles have Zn ···Zn distances of 9.48 Å in 1 and Ca ···Ca distances of 9.90 Å in 2. Further, compounds 1 and 2 were investigated by thermogravimetric analysis.
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2013, Vol 639, Issue 3/4, p592
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201200411