title: Neutron diffraction structures of water in crystalline hydrates of metal salts.
abstract: Neutron diffraction structures of water molecules in crystalline hydrates of metal salts have been collected from the literature up to December 2011. Statistical methods were used to investigate the influence on the water structures of the position and nature of hydrogen bond acceptors and cations coordinated to the water oxygen. For statistical modelling the data were pruned so that only structures with oxygen as hydrogen acceptors, single hydrogen bonds, and no more than two metals or hydrogens coordinated to the water oxygen were included. Multiple linear regression models were fitted with the water OH bond length and bond angle as response variables. Other variables describing the position and nature of the acceptors and ions coordinated to the waters were taken as explanatory variables. These variables were sufficient to give good models for the bond lengths and angles. There were sufficient structures involving coordinated Mg(2+) or Cu(2+) for a separate statistical modelling to be done for these cases.
authors.affiliation: School of Chemistry and Biochemistry, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia.
authors.forename: Graham S
authors.initials: GS
authors.lastname: Chandler
authors.affiliation: School of Chemistry and Biochemistry, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Wajrak
authors.affiliation: School of Mathematics and Statistics, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia.
authors.forename: R Nazim
authors.initials: RN
authors.lastname: Khan
keywords: hydrates; metal salts; neutron diffraction; water structures