ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Complex Chemistry of Polyfunctional Ligands, 621) New Iridium Complexes with N,N-Bis(diphenylphosphino)alkyl- and -arylaminesThe bis(diphenylphosphino)amines (Ph2P)2NR (1a-c) [R = CH3 (a), C6H5 (b), p-C6H4CH3 (c)] react with [(μ-Cl)Ir(C8H12)]2 in benzene to give the ionic, square plane complexes [Ir{(Ph2P)2NR}2]Cl · (C6H 6)n (2a-c), in tetrahydrofuran to form [Ir{(Ph2P)2NR}2]Cl · THF (2a′, b′). Recrystallization of 2a from methanol yields [Ir{(Ph2P)2NCH3}2]Cl · (CH3OH3(2a″). With sodium tetraphenylborate 2a-c, a′, b′, a″ react to give the solvent-free square plane complexes [Ir{(Ph2P)2NR}2]BPh4 (3a-c). The five-coordinate carbonyl complexes [Ir(CO){(Ph2P)2-NCH3}2]Cl (4a) and [Ir(CO){(Ph2P)2NR}2]Cl (solvent)n (4a′, b, c) have been synthesized by different routes. With sodium tetraphenylborate 4a-c, a′ undergo metatheses to yield the solvent-free complexes [Ir(CO){(Ph2P)2NR}2] BPh4 (5a-c). The new complexes have been characterized by conductometry, thermogravimetric analysis, infrared, Raman, 31P-NMR, and 1H-NMR spectra.
Notes:
Die Bis(diphenylphosphino)amine (Ph2P)2NR (1a-c)[R = CH3 (a), C6H5 (b), p-C6H4CH3 (c)] reagieren mit [(μ-Cl)Ir(C8H12)]2 in Benzol zu den ionischen, quadratisch-planaren Solvat-Komplexen [Ir{(Ph2P)2NR}2] Cl · (C6H6)n (2a-c) in Tetrahydrofuran zu [Ir{(Ph2P)2NR}2] Cl · THF (,2a′, b′). Umkristallisation von 2a aus Methanol führt zu [Ir{(Ph2P)2NCH3}2]Cl · (CH3OH)3 (2a′). Mit Natriumtetraphenylborat bilden 2a-c, a′, b′, a″ die solvatfreien, quadratisch-planaren Komplexe [Ir{(Ph2P)2NR}2]BPh4 (3a-c). Die fünffach koordinierten Carbonylkomplexe [Ir(CO){(Ph2P)2NCH3}2]Cl (4a) und [Ir(CO){Ph2P)2NR}2]Cl. (Solvens)n (4a′, b, c) wurden auf verschiedene Weise synthetisiert. Sie geben mit Natriumtetraphenylborat [Ir(CO){(Ph2P)2NR}2]BPh4 (5a-c). Die neuen Verbindungen wurden durch Leitfähigkeitsmessungen, Thermogravimetrie, IR-, Raman-, 31P-NMR- und 1H-NMR-Spektren charakterisiert.
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19811140628
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