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Chromophores Encapsulated in Gold Complexes: DPP Dyes with Novel Properties
Author(s) -
Langhals Heinz,
Limmert Michael,
Lorenz IngoPeter,
Mayer Peter,
Piotrowski Holger,
Polborn Kurt
Publication year - 2000
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 - 10.1002/1099-0682(200011)2000:11<2345::aid-ejic2345>3.0.co;2-e
Subject(s) - bathochromic shift , chemistry , chromophore , deprotonation , fluorescence , photochemistry , crystallography , crystal structure , transition metal , organic chemistry , catalysis , optics , ion , physics
Colour pigments of the DPP type (R 2 = H) were deprotonated and coordinated to transition metals [R 2 = M(PPh 3 ) 2 (M = Cu, Ag) and AuPPh 3 ]. Dyes were obtained with novel properties such as high solubilities, high fluorescence quantum yields and bathochromic absorptions. The crystal structures indicate a torsion of the planes of the rings of the substituents R 1 with respect to the plane of the chromophore depending on the complex fragment.