Novel effect of neighboring groups on the quenching of the excited state of a polymer-pendant Ru(bpy)/sub 3//sup 2 +/ by methylviologen

Journal Article · Wed Mar 14 23:00:00 EST 1984 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j150650a005· OSTI ID:6548246

Kaneko, M; Yamada, A; Tsuchida, E; Kurimura, Y

A polymer-pendant tris(2,2'-bipyridine)ruthenium(II) complex was prepared from the copolymer of 4-methyl-4'-vinyl-2,2'-bipyridine and acrylic acid, and the quenching of its excited state by methylviologen was studied. The quenching rate constant showed a remarkable pH dependence and was an order of magnitude larger than that of the monomeric Ru(bpy)/sub 3//sup 2 +/ in alkaline medium. This behavior is discussed in terms of the electrostatic effect of the polyanioic domains provided by the dissociated carboxylic groups. 15 references, 2 figures.

• Research Organization: Inst. of Physical and Chemical Research, Wako-shi, Japan
• OSTI ID: 6548246
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:6; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACRYLIC ACID
AQUEOUS SOLUTIONS
AZINES
BIPYRIDINES
CARBOXYLIC ACIDS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COMPLEXES
COPOLYMERS
DATA
DE-EXCITATION
DECOMPOSITION
DISPERSIONS
EMISSION SPECTROSCOPY
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
HETEROCYCLIC COMPOUNDS
INFORMATION
MIXTURES
MONOCARBOXYLIC ACIDS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PH VALUE
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
POLYMERS
PYRIDINES
RUTHENIUM COMPLEXES
SOLUTIONS
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TIME DEPENDENCE
TRANSITION ELEMENT COMPLEXES