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Titolo:
FULVALENE TITANIUM AND ZIRCONIUM COMPLEXES - SYNTHESIS AND NMR-STUDY OF PHOSPHANIDO-DERIVATIVES, ALKYL-DERIVATIVES, AND ALKYNYL-DERIVATIVES- X-RAY CRYSTAL-STRUCTURES OF 5H5)(MU-PPH(2)))(2)(MU-(ETA(5)-C5H4-ETA(5)-C5H4))] AND (MU-C-CSUME(3)))(2)(MU-(ETA(5)-C5H4-ETA(5)-C5H4))]
Autore:
CANO A; CUENCA T; GALAKHOV M; RODRIGUEZ GM; ROYO P; CARDIN CJ; CONVERY MA;
Indirizzi:
UNIV ALCALA DE HENARES,DEPT QUIM INORGAN,CAMPUS UNIV E-28871 ALCALA DE HENARES SPAIN UNIV ALCALA DE HENARES,DEPT QUIM INORGAN E-28871 ALCALA DE HENARES SPAIN UNIV READING,DEPT CHEM READING RG6 BERKS ENGLAND UNIV DUBLIN TRINITY COLL,DEPT CHEM DUBLIN 2 IRELAND
Titolo Testata:
Journal of organometallic chemistry
fascicolo: 1-2, volume: 493, anno: 1995,
pagine: 17 - 25
SICI:
0022-328X(1995)493:1-2<17:FTAZC->2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-STRUCTURE; TETRAVALENT ZIRCONIUM; BINUCLEAR; CHEMISTRY; TITANOCENE; TRIVALENT;
Keywords:
TITANIUM; ZIRCONIUM; MU-PHOSPHANIDO; ALKYNYL; FULVALENE; ALKYL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
A. Cano et al., "FULVALENE TITANIUM AND ZIRCONIUM COMPLEXES - SYNTHESIS AND NMR-STUDY OF PHOSPHANIDO-DERIVATIVES, ALKYL-DERIVATIVES, AND ALKYNYL-DERIVATIVES- X-RAY CRYSTAL-STRUCTURES OF 5H5)(MU-PPH(2)))(2)(MU-(ETA(5)-C5H4-ETA(5)-C5H4))] AND (MU-C-CSUME(3)))(2)(MU-(ETA(5)-C5H4-ETA(5)-C5H4))]", Journal of organometallic chemistry, 493(1-2), 1995, pp. 17-25

Abstract

Reaction of 5)-C5H5)(mu-Cl)}(2){mu-{eta(5)-C5H4-eta(5)-C5H4)}] (M = Ti, 1; Zr, 2) or a(5)-C5H5)Cl-2}(2){mu-{eta(5)-C5H4-eta(5)-C5H4)}], (M = Ti, 5; Zr, 6) with one or two equivalents of LiPPh(2) afforded the new phosphanidometal(III) complexes [{(M(C5H5)(mu-PPh(2))}(2){mu-(eta(5)-C5H4)}], 5-C,H,))1, (M = Ti, 3; Zr, 4). Reaction of 2 with LiC drop CSiMe(3) led to the diamagnetic zirconium(III) alkynyl derivative [{Zr(C5H5)(mu-C drop CSiMe(3))}(2)(mu-eta(5)-C(5)H4-eta(5)-C5H4], 7. Alkylation of 6 with LiCH(2)CMe(2)Ph gave 5)-C5H5)(CH(2)CMe(2)Ph)(2)}(2){mu-(eta(5)-C5H4-eta 5-C5H4)}], 8. A detailed NMR study of complexes 3 and 4 allowed the observation of the spectral behaviour of the eight different fulvalene protons through their coupling to the P-31 nucleus. The fluxional behaviour of complex 7 was studied by dynamic DNMR, and kinetic parameters for the sigma-pi-conversion of the alkynyl ligand were determined. The molecular structures of complexes 3 and 7 were determined by X-ray diffraction methods.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 01:57:27