Clusters metalloligands

Abstract Amino acids are the basic building blocks in the chemistry of life. This chapter describes the controllable assembly, structures and properties of lathanide(III)-transition metal-amino acid clusters developed recently by our group. The effects on the assembly of several factors of influence, such as presence of a secondary ligand, lanthanides, crystallization conditions, the ratio of metal ions to amino acids, and transition metal ions have been expounded. The dynamic balance of metalloligands and the substitution of weak coordination bonds account for the occurrence of diverse structures in this series of compounds. 

Fig. 26 (a) Core structure of the hexagonal Naj oxo cluster viewed along the crystallographic a-axis. (b). Structure of the hexagonal Ks unit formed from metalloligands and bridging water molecules, (c) Another view of the Ks unit which looks like the chair conformation of cyclohexane. Reprinted with permission from [143]. Copyright the Owner Societies... 

Synthesis and Structure of Aromatic Alkali Metal Clusters Supported by Molybdenum Metalloligands... 

Khama, S. Dasgupta, S. Biradha, K. Bhattachaijee, M. Self-assembly of an alkali metal cluster stabilized by a new flexidentate metalloligand formation and structure of heterobimetalhc Na-Mo and Cs-Mo 2D networks. Eur. J. Inorg. Chem. 2005,5005. 

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