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Titolo:
SYNTHESIS AND STRUCTURE OF OLIGOMERIC DIMESITYLGERMYL-SUBSTITUTED CARBODIIMIDES - CHARACTERIZATION OF HIGHER OLIGOMERS
Autore:
DAHROUCH M; RIVIEREBAUDET M; SATGE J; MAUZAC M; CARDIN CJ; THORPE JH;
Indirizzi:
UNIV TOULOUSE 3,CNRS,UPRESA HETEROCHIM FONDAMENTALE & APPL 5069 F-31062 TOULOUSE 4 FRANCE UNIV TOULOUSE 3,LAB IMRCP F-31062 TOULOUSE 4 FRANCE UNIV READING,DEPT CHEM READING RG4 9BB BERKS ENGLAND
Titolo Testata:
Organometallics
fascicolo: 4, volume: 17, anno: 1998,
pagine: 623 - 629
SICI:
0276-7333(1998)17:4<623:SASOOD>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
GERMANIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
M. Dahrouch et al., "SYNTHESIS AND STRUCTURE OF OLIGOMERIC DIMESITYLGERMYL-SUBSTITUTED CARBODIIMIDES - CHARACTERIZATION OF HIGHER OLIGOMERS", Organometallics, 17(4), 1998, pp. 623-629

Abstract

New cyclic oligomers of dimesitylgermylene carbodiimides (Mes(2)GeNCN)(n) (n = 3 (1) and 4 (2)) were synthesized by reactions of dimesityldichlorogermane with either cyanamide in the presence of triethylamine or lithium cyanamide. The reactions always gave 1, the trimer of the hypothetical (Mes(2)Ge = N - CN), as the major compound. Higher oligomers 3 (n up to 20 - 30) also can be isolated, depending on the reactionconditions. In THF solution at room temperature, 2 and 3 slowly isomerize to 1, which seems to be the most stable compound. X-ray analysis of trimer 1 and tetramer 2 shows unstrained tetrahedral germanium atoms and linear diimine linkers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 03:30:38