Photophysical properties and electropolymerization of gold complexes of 3,3''-diethynyl-2,2':5',2''-terthiophene.
The preparation and crystal structures of 3,3''-diethynyl-2,2':5',2''-terthiophene (A(2)T(3)) and three Au(I) complexes containing this ligand are reported. One of the complexes, Au(2)(dppm)(A(2)T(3)), has a short Au-Au distance (3.1969 A) because of an aurophilic interaction. UV/vis absorption and emission spectra of the complexes and ligand at 298 and 85 K and photoinduced electron transfer to methyl viologen are reported. A(2)T(3) and two of the complexes may be electropolymerized, and the resulting gold-containing films were characterized by X-ray photoelectron spectroscopy (XPS) and cyclic voltammetry.
Kuchison
Angela M
AM
Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
Wolf
Michael O
MO
Patrick
Brian O
BO
D018360:Crystallography, X-Ray; D004563:Electrochemistry; D006046:Gold / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D050607:Organogold Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010777:Photochemistry; D013237:Stereoisomerism; D013876:Thiophenes / Q000737:chemistry*
C554885:3,3''-diethynyl-2,2'-5',2''-terthiophene; D050607:Organogold Compounds; D013876:Thiophenes; D006046:Gold