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Titolo:
CRYSTAL-STRUCTURE AND SOLID-STATE FLUORESCENCE OF AN OXOMOLYBDENUM(V)-BENZYLVIOLOGEN ELECTRON DONOR-ACCEPTOR SALT
Autore:
MOHAMMED AK; FRONCZEK FR; MAVERICK AW;
Indirizzi:
LOUISIANA STATE UNIV,DEPT CHEM BATON ROUGE LA 70803 LOUISIANA STATE UNIV,DEPT CHEM BATON ROUGE LA 70803
Titolo Testata:
Inorganica Chimica Acta
fascicolo: 1-2, volume: 226, anno: 1994,
pagine: 25 - 31
SICI:
0020-1693(1994)226:1-2<25:CASFOA>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIMOLYBDENUM TETRAACETATE; DIOXORHENIUM(V) COMPLEXES; VIOLOGENS; CHEMISTRY;
Keywords:
CRYSTAL STRUCTURES; SOLID-STATE FLUORESCENCE; MOLYBDENUM COMPLEXES; ORE COMPLEXES; BENZYLVIOLOGEN SALTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
A.K. Mohammed et al., "CRYSTAL-STRUCTURE AND SOLID-STATE FLUORESCENCE OF AN OXOMOLYBDENUM(V)-BENZYLVIOLOGEN ELECTRON DONOR-ACCEPTOR SALT", Inorganica Chimica Acta, 226(1-2), 1994, pp. 25-31

Abstract

Solutions containing benzylviologen and the fluorescent oxo-d(1) ion MoOBr4(CH3CN)(-) in acetonitrile slowly deposit crystals of the electron donor-acceptor complex (BV)[MoOBr4(H2O)]Br .CH3CN: C26H27Br5MoN(3)O(2), triclinic, space group P (1) over bar; a = 11.349(1), b = 16.1048(8), c = 18.720(1) Angstrom; alpha = 71.961(5), beta = 76.375(7), gamma = 82.484(6)degrees; Z = 4; R(F) = 0.048, Rw(F) = 0.046 for 4135 reflections and 668 parameters. The two independent Mo complex anions in the structure show Mo = O distances of 1.62(1) and 1.629(9) Angstrom. The fluorescence spectrum of the solid complex is similar in shape and intensity to those of other salts of (MoOBr4)-O-V(H2O)(-) with non-quenching cations. The relatively intense fluorescence of solid (BV)[MoOBr4(H2O)]Br.CH3CN suggests that electron transfer from (MoOBr4)-O-V(H2O)-((2)E) to BV2+, although slightly favorable thermodynamically, doesnot compete effectively with its rapid fluorescence.

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Documento generato il 01/10/20 alle ore 04:12:34