Mononuclear and dinuclear osmium(II) compounds containing 2,2'-bipyridine and 3,5-bis(pyridin-2-yl)-1,2,4-triazole: synthesis, electrochemistry, absorption spectra, and luminescence properties

1991 ◽  
Vol 30 (4) ◽  
pp. 641-645 ◽  
Author(s):  
Francesco. Barigelletti ◽  
Luisa. De Cola ◽  
Vincenzo. Balzani ◽  
Ronald. Hage ◽  
Jaap G. Haasnoot ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Luminescence Properties

Synthesis, Structural Features, Absorption Spectra, Redox Behaviour and Luminescence Properties of Ruthenium(II) Rack-Type Dinuclear Complexes with Ditopic, Hydrazone-Based Ligands

2005 ◽  
Vol 11 (13) ◽  
pp. 3997-4009 ◽  
Author(s):  
Adrian-Mihail Stadler ◽  
Fausto Puntoriero ◽  
Sebastiano Campagna ◽  
Nathalie Kyritsakas ◽  
Richard Welter ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Structural Features ◽  
Luminescence Properties ◽  
Dinuclear Complexes ◽  
Redox Behaviour

Concave Macrobicycles: Absorption Spectra, Luminescence Properties, and Endocavital Complexation of Neutral Organic Guests

1996 ◽  
Vol 1996 (11) ◽  
pp. 1697-1704 ◽  
Author(s):  
Fritz Vögtle ◽  
Ingo Michel ◽  
Ralf Berscheid ◽  
Martin Nieger ◽  
Kari Rissanen ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Luminescence Properties ◽  
Organic Guests

Absorption spectra and luminescence properties of a series of pyridine carboxaldehyde phenylhydrazone ligands and their palladium(II) complexes

1990 ◽  
Vol 53 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Antonino Giannetto ◽  
Giovanni Guglielmo ◽  
Vittorio Ricevuto ◽  
Antonino Giuffrida ◽  
Sebastiano Campagna
Keyword(s):  
Absorption Spectra ◽  
Luminescence Properties

Synthesis and structure of vinylporphyrin metal complexes and their copolymerization: Spectral luminescence properties of Zn copolymers in solution

2000 ◽  
Vol 04 (01) ◽  
pp. 45-64 ◽  
Author(s):  
ANATOLII D. POMOGAILO ◽  
VLADIMIR F. RAZUMOV ◽  
IGOR' S. VOLOSHANOVSKII
Keyword(s):  
Absorption Spectra ◽  
Electronic Absorption Spectra ◽  
Average Molecular Weight ◽  
Molar Fraction ◽  
Luminescence Properties ◽  
Chain Growth ◽  
Copolymer Composition ◽  
Wave Band ◽  
Vinyl Group ◽  
Spectral Luminescence

Vinylporphyrins containing one vinyl group at the pyrrole or benzene ring and their complexes with Cu 2+ and Zn 2+ have been obtained by the Wittig reaction. The compounds obtained were characterized by physicochemical methods. X-ray diffraction analysis of 5-(4-vinylphenyl)-10,15,20-triphenylporphyrin has been carried out. It is likely that the inclusion of the vinyl group is accompanied by weak electron effects on the macrocycles. The radical-induced copolymerization of meso-tetraphenylporphyrin monomers with the vinyl group in a benzene or pyrrole ring and their copper and zinc complexes with styrene and methacrylate was studied. Porphyrin comonomers decrease the overall polymerization rate and the number-average molecular weight of the products formed compared with the weight of polystyrene obtained under similar conditions. The main reasons for termination of chain growth by vinylporphyrins were revealed and some quantitative parameters of these reactions were obtained. IR and electronic absorption spectra of porphyrin-containing copolymers are discussed. According to the ESR spectra, the copper-containing centres in the copolymers are fairly remote from each other, and the metal-containing polymeric systems are magnetically dilute. The spectral luminescence properties of solutions of zinc 5-(4-vinylphenyl)-10,15,20-triphenylporphyrin–methyl methacrylate copolymers with various contents of porphyrin groups were studied. It was shown that a new long-wave band appears in the absorption spectra of the copolymers, the intensity of which depends on the copolymer composition, and the quantum yield of fluorescence decreases with increasing molar fraction of porphyrin groups.

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