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Titolo:
Synthesis and structural characterization of cyclopentadienyliron- and cyclopentadienylmolybdenum-gallium compounds
Autore:
Borovik, AS; Bott, SG; Barron, AR;
Indirizzi:
Univ Houston, Dept Chem, Houston, TX 77204 USA Univ Houston Houston TX USA 77204 uston, Dept Chem, Houston, TX 77204 USA Rice Univ, Dept Chem, Houston, TX 77005 USA Rice Univ Houston TX USA 77005 ice Univ, Dept Chem, Houston, TX 77005 USA
Titolo Testata:
ORGANOMETALLICS
fascicolo: 14, volume: 18, anno: 1999,
pagine: 2668 - 2676
SICI:
0276-7333(19990705)18:14<2668:SASCOC>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
CROWDED ARYLOXIDE COMPOUNDS; RAY CRYSTAL-STRUCTURES; D-BLOCK ELEMENTS; MOLECULAR-STRUCTURE; METAL-COMPLEXES; THIN-FILMS; INDIUM; ALUMINUM; DEPOSITION; HYDROLYSIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Bott, SG Univ Houston, Dept Chem, Univ Pk, Houston, TX 77204 USA Univ Houston Univ Pk Houston TX USA 77204 , Houston, TX 77204 USA
Citazione:
A.S. Borovik et al., "Synthesis and structural characterization of cyclopentadienyliron- and cyclopentadienylmolybdenum-gallium compounds", ORGANOMETAL, 18(14), 1999, pp. 2668-2676

Abstract

Reaction of K[CpFe(CO)(2)] with a large excess of GaCl3 yields [{CpFe(CO)(2)}Ga(Cl . GaCl3)(mu-Cl)](2) (1), while reactions with 1 and 0.5 equiv yield [{CpFe(CO)(2)}GaCl2](n) (2) and [{CpFe(CO)(2)}(2)Ga(mu-Cl)](infinity), respectively. The molecular structure of compound 1 can be considered to be aGaCl3 complex of dimeric 2, in which the two GaCl3 moieties coordinate viaa near Linear chloride bridge. [{CpFe(CO)(2)}(2)Ga(mu-Cl)](infinity) is polymeric in the solid state, involving an infinite Ga-Cl ... Ga-Cl backbone with pendent [CpFe(CO)(2)] units; however, the solubility of [{CpFe(CO)(2)}(2)Ga(mu-Cl)](infinity) in CH2Cl2 and toluene suggests that its polymeric structure is cleaved in solution. Compound 2 reacts with MeCN yielding [CpFe(CO)(2)]GaCl2(MeCN) (3). Reduction of [{CpFe(CO)(2)}(2)Ga(mu-Cl)](infinity)with potassium in Et2O yields the previously reported [CpFe(CO)(2)](3)Ga and gallium metal. Reaction of K[CpFe(CO)(2)] with GaI3 yields [CpFe(CO)(2)]-GaI2 (4), which upon hydrolysis gives the unusual galloxane; [CpFe(CO)(2)](6)Gas(6)(mu(3)-O)(4)(mu-OH)(2)I-2 (5). Reaction of CpMo(CO)(3)H with Ga(Bu-t)(3) yields [CpMo(CO)(3)]Ga(Bu-t)(2) (6), which forms a Lewis acid-base complex with MeCN: [CpMo(CO)(3)]Ga(Bu-t)(2)(MeCN) (7). The structure of compound 6 shows evidence of unusual intra- and intermolecular carbonyl ... gallium interactions. The aluminum analogue of compound 6, [CpMo(CO)(3)]Al(Bu-t)(2) (8); has been prepared, as has the sterically hindered aryloxide derivative, [CpMo(CO)(3)]Al(BHT)(2) (9). The structures of compounds 1, 5 . Et2O, 6, and [{CpFe(CO)(2)}(2)Ga(mu-Cl)](infinity) have been determined by X-ray crystallography.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 18:42:06