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Synthetic, spectral and structural aspects of some Rh(III) pentamethylcyclopentadiene complexes containing N ' N '-donor bridging ligands

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Title Synthetic, spectral and structural aspects of some Rh(III) pentamethylcyclopentadiene complexes containing N ' N '-donor bridging ligands
 
Creator CHANDRA, M
SAHAY, AN
MOBIN, SM
PANDEY, DS
 
Subject crystal-structure
polypyridine complexes
molecular-structure
carbonyl-complexes
iridium nitrosyl
rhodium
metal
electrochemistry
photochemistry
mononuclear
rhodium pentamethylcyclopentadiene complexes
pyridine-2-carbaldehyde azine
p-phenylene-bis(picoline)aldamine
p-biphenylene-bis(picoline)aldamine
bridged complexes
 
Description Reactions of the chloro-bridged dimeric rhodium complex [{(eta(5)-C5Me5)Rh(mu-Cl)Cl}(2)] with the N ,N'-donor bridging ligands pyridine-2-carbaldehyde azine (paa), p-phenylene-bis(picoline)aldamine (pbp) or p-biphenylene-bis(picoline)aldamine (bbp) in 1:1 molar ratio in methanol led in the formation of cationic binuclear complexes [(eta(5)-C5Me5)ClRh(mu-L)RhCl(eta(5)-C5Me5)](2+) (L = paa, pbp or bbp) in high yield. It was further observed that reactions of the chloro-bridged dimeric rhodium complex [{(eta(5)-C5ME5)Rh(mu- Cl)Cl}(2)], with an excess of the above mentioned ligands also, resulted in binuclear complexes. The reaction products have been characterized by microanalyses and spectroscopic studies (IR, H-1-, C-13-NMR, ESMS/FAB mass and electronic spectra). Molecular structure of the representative binuclear complex [(eta(5)-C5Me5)ClRh(mu-paa)RhCl(eta(5)-C5Me5)](BF4)(2) has been confirmed by single crystal X-ray analysis. Crystal data: monoclinic, P2(1)/n, a = 10.2050(7), b = 15.4470(7), c = 24.959(2) Angstrom, beta = 97.904(6)degrees, V = 3897.1(5) Angstrom(3), Z = 4, R = 0.0609. (C) 2002 .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-29T00:58:02Z
2011-12-26T12:47:41Z
2011-12-27T05:38:23Z
2011-07-29T00:58:02Z
2011-12-26T12:47:41Z
2011-12-27T05:38:23Z
2002
 
Type Article
 
Identifier JOURNAL OF ORGANOMETALLIC CHEMISTRY, 658(1-2), 43-49
0022-328X
http://dx.doi.org/10.1016/S0022-328X(02)01598-X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7536
http://hdl.handle.net/10054/7536
 
Language en