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Titolo:
STRUCTURES OF MOLECULAR ADDUCTS OF INORGANIC SALTS .1. PB(REO4)(2)CENTER-DOT-UREA-CENTER-DOT-H2O AND BA(REO4)(2)CENTER-DOT-3 UREA
Autore:
MACICEK J; ANGELOVA O; PETROVA R;
Indirizzi:
BULGARIAN ACAD SCI,INST APPL MINERAL,RAKOVSKI STR 92 BU-1000 SOFIA BULGARIA
Titolo Testata:
Zeitschrift fur Kristallographie
fascicolo: 1, volume: 210, anno: 1995,
pagine: 24 - 30
SICI:
0044-2968(1995)210:1<24:SOMAOI>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEUTRON-DIFFRACTION; COMPLEXES; GEOMETRY; HALIDES;
Keywords:
UREA; CRYSTAL STRUCTURE; ADDITION COMPOUNDS; PERRHENATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
J. Macicek et al., "STRUCTURES OF MOLECULAR ADDUCTS OF INORGANIC SALTS .1. PB(REO4)(2)CENTER-DOT-UREA-CENTER-DOT-H2O AND BA(REO4)(2)CENTER-DOT-3 UREA", Zeitschrift fur Kristallographie, 210(1), 1995, pp. 24-30

Abstract

The two structures are built of (2)(infinity)[MTU rea], M = Pb, Ba, layers with cornerlinked ReO4 tetrahedra (T) and O-coordinated urea bridges between the cations. The layers are decorated on both sides by half of the ReO4 groups and water or urea molecules. An extensive network of hydrogen bonds and one long coordinative M-O bond in Pb(ReO4)(2) . Urea . H2O holds the layers together. The cations have 4-capped square antiprismatic MO(9) coordination and the polyhedra form centrosymmetric dimers by sharing an edge of urea O atoms.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 05:14:07