Spectra luminescent

Denti, G., Campagna, S., Serroni, S., Ciano, N., and Balzani, V. (1992) Decanuclear homo- and hetero-metallic polypyridine complexes Synthesis, absorption spectra, luminescence, electrochemical oxidation, and intercomponent energy transfer./. Am. Chem. Soc. 114, 2944-2950. 

For some examples, see e.g. (a) Hogan CF, Harris AR, Bond AM et al (2006) Electrochemical studies of porphyrin-appended dendrimers. PhysChemChemPhys 8 2058-2065 (b) Jang W-D, Nishiyama N, Zhang G-D et al (2005) Supramolecular nanocarrier of anionic dendrimer porphyrins with cationic block copolymers modified with polyethylene glycol to enhance intracellular photodynamic efficacy. Angew Chem Int Ed 44 419 -23 (c) Loiseau F, Campagna S, Hameurlaine A et al (2005) Dendrimers made of porphyrin cores and carbazole chromophores as peripheral units. Absorption spectra, luminescence properties, and oxidation... 

Supramolecular Ru and/or Os complexes of tris(bipyridine) bridging ligands. Syntheses, absorption spectra, luminescence properties, electrochemical behavior, intercomponent energy, and electron transfer. [P. Belser, A. von Zelewsky, M. Frank, C. Seel, F. Vogtle, L. De Cola, F. Barigelletti, V. Balzani, J. Am. Chem. Soc. 1993, 225(10), 4076-4086] [ 23]. 

Keywords Cubic crystal Vibrational Spectra Luminescence Absorption Crystal Field ... 

Phosphorescence Spectra.—Luminescence from a low-lying triplet state of water368 has been reported. It has been shown that two long-lived emission systems in the biacetyl crystal described previously by Sidman and McClure (see ref. 368) are in fact due to impurities, and a complete analysis is presented of the true 3AU xAg phosphorescence. The zero-zero band in emission is found at 20 327 cm-1.135 A satisfactory account of the six characteristic bands in the phosphorescence spectrum of benzene has been given on the basis of pseudo-Jahn-Teller vibronic interactions between the lower 3Blu and 3Elu states in which two active vibrations in the pseudo-cylindrical approximation are considered.369 The phosphorescence spectra of anthracene,3700 coronene,8706 benzophenone in aqueous solution,371 pyrimidine derivatives,372 porphyrins,298 873 and crystalline charge-transfer complexes 374 have been reported. 

As outlined in the introduction, quenching of excited states of complexes such as Ru(bipy)3 by reductants such as triphenylamine in a one-electron transfer step (Reaction 3) is a well-established process. With most complexes examined to date, back-electron transfer is both rapid and efficient so that net chemical change is seldom observed. The hydro-phobic Complexes 1, 2, and 3 were found to have absorption spectra, luminescence spectra, and excited-state lifetimes similar to those of Ru(bipy)3 however, their solubility and redox behavior is somewhat different (39, 40). While Ru(bipy)3 is soluble in water and a few polar organic solvents. Complexes 1, 2, and 3 are water insoluble but rather widely soluble in a variety of nonaqueous solvents. Redox potentials of Complexes 1 and 2 are shifted more anodic as shown in Scheme 1 the... 

RU(II) AND/OR OS(II) TRIMETALLIC COMPLEXES OF TRIS(BIPYRIDINE) BRIDGING LIGANDS. ABSORPTION SPECTRA, LUMINESCENCE PROPERTIES, ELECTROCHEMICAL BEHAVIOR, AND INTERCOMPONENT ENERGY TRANSFER. 

Loiseau F, Campagna S, Hameurlaine A, Dehaen W (2005) Dendrimers made of porph)nin cores and carbazole chromophores as peripheral units. Absorption spectra, luminescence properties, and oxidation behavior. J Am Chem Soc 127(32) 11352-11363... 

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