UNSPECIFIED (1996) Fast atom bombardment studies of amino acid and peptide complexes of the uranyl ion: Ligand attachment, dissociation and fragmentation. Inorganica Chimica Acta, 241 (2). pp. 105-110. ISSN 0020-1693

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Abstract

Fast atom bombardment in organic matrices of uranyl complexes of several amino acids (AA) and two dipeptides reveals that (i) the coordination sphere can expand in the gas phase to give pentakis species [UO2(AA)(5)](+); (ii) complete stepwise dissociation of ligands AA occurs; (iii) ligand fragmentation takes place via initial loss of non-ligated-NH3+ and CH3 groups, while the carboxy group is retained until the final stage; (iv) clustering of UO2 groups can give such species as [(UO2)(x)(AA)](+); (v) fragmentation of ligated dipeptides occurs mainly via carbon-(amide)nitrogen cleavage, indicating a role of UO22+ in steering molecular breakdown to give amide- or carboxy-containing fragments.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Journal or Publication Title:	Inorganica Chimica Acta
Publisher:	ELSEVIER SCIENCE SA LAUSANNE
ISSN:	0020-1693
Date:	15 January 1996
Volume:	241
Number:	2
Number of Pages:	6
Page Range:	pp. 105-110
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/18989

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