Synthesis and X-ray crystallographic study of K[Ni(NH₂CH₃CHCOO)₃].3H₂O

Authors: Khatib, Awni; Aqra, Fathi; Deamer, David; Oliver, Allen

Source: Journal of Chemical Research, Volume 2009, Number 2, February 2009 , pp. 98-100(3)

Publisher: Science Reviews 2000 Ltd

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Abstract:

A complex of formula K[Ni(NH₂CH₃CHCOO)₃].3H₂O has been prepared from nickel(II) chloride in aqueous solution by adding L-alanine and potassium hydroxide. It has been crystallised from DMSO and its structure determined by X-ray crystal structure analysis. The nickel(II) atom adopts distorted octahedral coordination geometry with three bidentate alanine molecules. The complex is anionic and synthesised in the form of the potassium salt. The network crystal structure shows hydrogen bonding between all the chelate molecules, and each K[Ni(NH₂CH₃CHCOO)₃] fragment contains three water molecules as hydrated water. The geometry of the potassium ion is octahedral.

Keywords: ALANINE COMPLEX; CRYSTAL STRUCTURE; HYDROGEN BONDING; WATER OF HYDRATION

Document Type: Research article

DOI: http://dx.doi.org/10.3184/030823409X402555

Publication date: 2009-02-01

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The Journal of Chemical Research is a monthly journal which has a broad international authorship and publishes research papers and reviews in all branches of experimental chemistry.
Recent papers have described new synthetic methods, new heterocyclic compounds, new natural products, and the inorganic chemistry of metal complexes. Now in its 34th year, the Journal of Chemical Research was established in 1977 as a joint venture by the British, French and German chemical societies and maintains the high standards set by the founding societies. Each paper is independently peer reviewed and only carefully evaluated contributions are accepted.
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