ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Alkyl and Aryl Complexes of Iridium and Rhodium. XIX. Reaction of Carboxylic Acids with Selected Organo Compounds of Ir(I) and Rh(I): Formation of Arylhydrido, Carboxylatohydrido, and Carboxylato Derivativescis-Arylhydridoiridium(III) complexes IrH(Ar)(O2CR)(CO)(PPh3)2 (R = Me: Ar = C6H5, 4-MeC6H4; R = Et: Ar = 4-MeC6H4, 2,4-Me2C6H3) could be prepared by oxidative addition of carboxylic acids to aryliridium(I) compounds Ir(Ar)(CO)(PPh3)2. Reaction of aliphatic carboxylic acids with alkyliridium(I) derivatives Ir(Alk)(CO)(PPh3)2 and Ir(Alk)[PhP(CH2CH2CH2PPh2)2] (Alk = CH2CMe3, CH2SiMe3) lead to dicarboxylatoiridium(III) hydrides IrH(O2CR)2(CO)(PPh3)2 (R = Me, Et, i-Pr) and IrH(O2CR)2[PhP(CH2CH2CH2PPh2)2] (R = Me, Et).Ir(4-MeC6H4CO2)(CO)(PPh3)2 was obtained from Ir(CH2SiMe3)(CO)(PPh3)2 and 4-MeC6H4CO2H. Interaction of organorhodium complexes Rh(R′)(CO)(PPh3)2 (R′ = CH2SiMe3, 4-MeC6H4) and Rh(R′)[PhP(CH2CH2CH2PPh2)2] (R′ = CH2CMe3, 4-MeC6H4) with aliphatic and aromatic carboxylic acids yielded carboxylatorhodium(I) compounds Rh(O2CR)(CO)(PPh3)2 (R = Me, t-Bu, 4-MeC6H4) and Rh(O2CR)[PhP(CH2CH2CH2PPh2)2] (R = Me, 4-MeC6H4).
Notes:
Durch oxydative Addition von Carbonsäuren an Aryliridium(I)-Verbindungen Ir(Ar)(CO)(PPh3)2 konnten cis-Arylhydridoiridium(III)-Komplexe IrH(Ar)(O2CR)(CO)(PPh3)2 (R = Me: Ar = C6H5, 4-MeC6H4; R = Et: Ar = 4-MeC6H4, 2,4-Me2C6H3) dargestellt werden. Reaktion aliphatischer Carbonsäuren mit Alkyliridium(I)-Derivaten Ir(Alk)(CO)(PPh3)2 und Ir(Alk)[PhP(CH2CH2CH2PPh2)2] (Alk = CH2CMe3, CH2SiMe3) führte zu Dicarboxylatoiridium(III)-Hydriden IrH(O2CR)2(CO)(PPh3)2 (R = Me, Et, i-Pr) und IrH(O2CR)2[PhP(CH2CH2CH2PPh2)2] (R = Me, Et). Aus Ir(CH2SiMe3)(CO)(PPh3)2 und 4-MeC6H4CO2H wurde Ir(4-MeC6H4CO2)(CO)(PPh3)2 erhalten. Umsetzung von Organorhodiumkomplexen Rh(R′)(CO)(PPh3)2 (R′ = CH2SiMe3, 4-MeC6H4) und Rh(R′)[PhP(CH2CH2CH2PPh2)2] (R′ = CH2CMe3, 4-MeC6H4) mit aliphatischen und aromatischen Carbonsäuren ergab Carboxylatorhodium(I)-verbindungen Rh(O2CR)(CO)(PPh3)2 (R = Me, t-Bu, 4-MeC6H4) und Rh(O2CR)[PhP(CH2CH2CH2PPh2)2] (R = Me, 4-MeC6H4).
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19845191215
