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Denial of Tris( C , N ‐cyclometalated) Ruthenacycle: Nine‐Membered η 6 ‐ N , N‐trans or η 2 ‐ N , N‐cis Ru II Chelates of 2,2′‐Bis(2‐pyridinyl)‐1,1′‐biphenyl
Author(s) -
SaavedraDíaz Omar,
CerónCamacho Ricardo,
Hernández Simon,
Ryabov Alexander D.,
Le Lagadec Ronan
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800584
Subject(s) - chemistry , ruthenium , tris , octahedron , stereochemistry , medicinal chemistry , chelation , derivative (finance) , crystallography , catalysis , crystal structure , organic chemistry , biochemistry , financial economics , economics
In the attempt to prepare the tris(cyclometalated) ruthenium derivative of 2‐phenylpyridine, [Ru(η 6 ‐C 6 H 6 )(phpy)Cl] was treated with Hg(phpy) 2 . The anticipated [Ru(phpy) 3 ] n + species was not formed. Instead, the product of oxidative coupling of two 2‐(2‐pyridinyl)phenyl ligands to form octahedral [Ru II (phpy)(pbp)]PF 6 with pbp = 2,2′‐bis(2‐pyridinyl)‐1,1′‐biphenyl was isolated; pbp forms a nine‐membered chelate with two N and two η 2 ‐C=C donor centers. The binding of η 2 ‐C=C donor units is weak as they are readily replaced by CO. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)