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Cover Feature: Manipulating Clusters by Use of Competing N,O‐Chelating Ligands: A Combined Crystallographic, Mass Spectrometric, and DFT Study (Chem. Eur. J. 31/2018)
Author(s) -
Zheng HuiLi,
Chen XueLi,
Li Tian,
Yin Zheng,
Zhang Yuexing,
Kurmoo Mohamedally,
Zeng MingHua
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201801510
Subject(s) - chemistry , ligand (biochemistry) , cobalt , crystallography , cluster (spacecraft) , denticity , chelation , schiff base , stereochemistry , crystal structure , receptor , inorganic chemistry , computer science , biochemistry , programming language
The creek represents a solution reaction system . The crab and the crayfish represent a tridentate Schiff base ligand and a bidentate benzimidazole ligand, respectively. These ligands exhibit a competing trend in the formation of cobalt clusters. Two heptanuclear disks are obtained when a single ligand is employed, following a stepwise assembly: {Co 1 }→{Co 2 }→{Co 4 }→{Co 7 }. A mixture of the two ligands results in a butterfly‐structured tetranuclear cobalt cluster through the following steps: {Co 1 }→{Co 2 }→{Co 4 }. Competition, assembly, and transformation were observed during the assembly process of the Co 4 cluster with mixed ligands. More information can be found in the Full Paper by M.‐H. Zeng, et al. on page 7906.