TY - JOUR
T1 - Electrochemical behavior of phosphine-substituted ruthenium(II) polypyridine complexes with a single labile ligand
AU - Nakamura, Go
AU - Okamura, Masaya
AU - Yoshida, Masaki
AU - Suzuki, Takayoshi
AU - Takagi, Hideo D.
AU - Kondo, Mio
AU - Masaoka, Shigeyuki
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/7/21
Y1 - 2014/7/21
N2 - A series of phosphine-substituted ruthenium polypyridine complexes, cis(P,Cl)-[Ru(trpy)(Pqn)Cl]PF6 (cis-Cl), trans(P,MeCN)-[Ru(trpy)(Pqn) (MeCN)](PF6)2 (trans-PN), cis(P,MeCN)-[Ru(trpy)(Pqn)(MeCN) ](PF6)2 (cis-PN), and [Ru(trpy)(dppbz)(MeCN)](PF 6)2 (PP), were synthesized and crystallographically characterized (trpy = 2,2′:6′,2″-terpyridine, Pqn = 8-(diphenylphosphanyl)quinoline, and dppbz = 1,2-bis(diphenylphosphanyl)benzene) . In electrochemical measurements for cis-PN and PP, the reduction of cis-PN resulted in the formation of trans-PN via cis-trans isomerization and that of PP proceeded via a two-electron-transfer reaction. The mechanism of the electrochemical behaviors is discussed through consideration of five-coordinated species, [Ru(trpy)(Pqn)]n+ or [Ru(trpy)(dppbz)]n+ (n = 0-2), formed by liberation of a monodentate labile ligand.
AB - A series of phosphine-substituted ruthenium polypyridine complexes, cis(P,Cl)-[Ru(trpy)(Pqn)Cl]PF6 (cis-Cl), trans(P,MeCN)-[Ru(trpy)(Pqn) (MeCN)](PF6)2 (trans-PN), cis(P,MeCN)-[Ru(trpy)(Pqn)(MeCN) ](PF6)2 (cis-PN), and [Ru(trpy)(dppbz)(MeCN)](PF 6)2 (PP), were synthesized and crystallographically characterized (trpy = 2,2′:6′,2″-terpyridine, Pqn = 8-(diphenylphosphanyl)quinoline, and dppbz = 1,2-bis(diphenylphosphanyl)benzene) . In electrochemical measurements for cis-PN and PP, the reduction of cis-PN resulted in the formation of trans-PN via cis-trans isomerization and that of PP proceeded via a two-electron-transfer reaction. The mechanism of the electrochemical behaviors is discussed through consideration of five-coordinated species, [Ru(trpy)(Pqn)]n+ or [Ru(trpy)(dppbz)]n+ (n = 0-2), formed by liberation of a monodentate labile ligand.
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U2 - 10.1021/ic5003644
DO - 10.1021/ic5003644
M3 - Article
C2 - 24964206
AN - SCOPUS:84904666549
SN - 0020-1669
VL - 53
SP - 7214
EP - 7226
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 14
ER -