ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Chemistry of Polyfunctional Molecules, 81. About the Reaction of Di-μ-chloro-bis[dicarbonylrhodium(I)] with N,N-Bis(diphenylphosphino)alkylamines[Rh(μ-Cl)(CO)2]2 (2) reacts mit (Ph2P)2NR (3a, b) [R = CH3 (a), C2H5 (b)], depending on the reaction temperature, the solvents, and the molar ratios, to give the chelate complexes [Rh{(Ph2P)2NR}2]Rh(CO)2Cl2] (4a, b) and [Rh(CO){(Ph2P)2NCH3}2][Rh(CO)2 Cl2] (5a), the A-frame compounds Rh2(μ-CO)[μ-(Ph2P)2NR]2Cl2 (6a, b) and the fourfold bridged complexes [Rh2(μ-CO)(μ-Cl){μ-(Ph2P)2NR}2(CO)2][Rh(CO)2Cl2] (7az, bz). With NaBPh4 or NH4PF6 in CO atmosphere 6a, b form the salts [Rh2(μ-CO)(μ-Cl){μ-(Ph2P)2NR}2(CO)2X (7 ax - by) [X = BPh4 (x), PF6 (y)]. Under reduced pressure only 7ay, solved in dichloromethane, loses CO yielding the CO-bridge-free complex [Rh2(μ-Cl){μ-(Ph2P)2NCH3}2(CO)2]PF6 (8 ay).
Notes:
Umsetzungen von [Rh(μ-Cl)(CO)2]2 (2) mit (Ph2P)2NR (3a, b) = [R = CH3 (a), C2H5 (b)] führen in Abhängigkeit von Reaktionstemperatur, Lösungsmittel und Molverhältnissen zu den Chelatkomplexen [Rh{Ph2P)2NR}2][Rh(CO)2Cl2] (4a, b) und [Rh(CO){Ph2P)2NCH3}2][Rh(CO)2Cl2] (5a), den A-Frame-Verbindungen Rh2(μ-CO)[μ-(Ph2P)2NR]2Cl2 (6a, b) und den vierfach verbrückten Komplexen [Rh2(μ-CO)(μ-Cl){μ-(Ph2P)2NR}2(CO) 2][Rh(CO)2Cl2] (7az, bz). 6a, b reagieren mit NaBPh4 bzw. NH4 PF6 in CO-Atmosphäre zu den Salzen [Rh2(μ-CO)(μ-Cl){μ-Ph2P)2NR}2-(CO)2]X (7 ax - by) [X = BPh4 (x), PF6 (y)]. In CH2Cl2 verliert nur 7 ay unter vermindertem Druck CO und bildet den CO-Brücken-freien Komplex [Rh2(μ-Cl){μ-(Ph2P)2NCH3}2(CO)2]PF6 (8 ay).
Additional Material:
4 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19851180426
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