Complexation of trivalent lanthanide cations by inositol in solid state. The crystal structure and Raman spectra study of NdCl3 center dot inositol center dot 9H(2)O

Citation
Lm. Yang et al., Complexation of trivalent lanthanide cations by inositol in solid state. The crystal structure and Raman spectra study of NdCl3 center dot inositol center dot 9H(2)O, J MOL STRUC, 560(1-3), 2001, pp. 105-113
Citations number
43
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR STRUCTURE
ISSN journal
0022-2860 → ACNP
Volume
560
Issue
1-3
Year of publication
2001
Pages
105 - 113
Database
ISI
SICI code
0022-2860(20010129)560:1-3<105:COTLCB>2.0.ZU;2-C
Abstract
The crystal structure of NdCl3.C6H12O6. 9H(2)O has been determined. It crys tallizes in the monoclinic system, p2(1)/n space group with cell dimensions : a = 15.824(3) Angstrom, b = 8.633(2) Angstrom, c = 16.219(3) Angstrom, be ta = 107.24 degrees, V = 2116.1(7) Angstrom (3) and Z = 4. Each Nd ion is c oordinated to nine oxygen atoms, two from inositol and seven from water mol ecules, with an Nd-O distance of 2.449-2.683 Angstrom, the other two water molecules are hydrogen bonded. No direct contacts exist between Nd and Cl. Then is an extensive network of hydrogen bonds in hydroxyl groups, water mo lecules and chloride ions in the crystal structure of the lanthanide comple x. The Raman spectra of Pr-, Nd- and Sm-inositol are similar, which show th at the three metal ions have the same coordination mode. The Raman spectra are consistent with their structures. (C) 2001 Elsevier Science B.V. All ri ghts reserved.