"Cibulka, Radek" . . . "[3C299F3036DF]" . "Katalytick\u00E1 fotooxidace 4-methoxybenzylalkoholu pomoc\u00ED komplexu flavin-Zn(II)-cyklen"@cs . "Flavin-zinc(II)-cyclen 10 contains a substrate binding site (zinc(II)-cyclen) and a chromophore (flavin) covalently linked. Upon irradiation compound 10 effectively oxidizes 4-methoxybenzyl alcohol 11-CH3 to the corresponding benzaldehyde in water and in acetonitrile. In the presence of air the reduced flavin 10-H2 is reoxidized and catalytic amounts of 10 are sufficient for alcohol conversion. The mechanism of oxidation is based on photoinduced electron-transfer from coordinated benzyl alcohol to the flavin chromophore. This intramolecular process leads to a much higher efficiency of the photooxidation with 30-fold higher quantum yields than the comparable intermolecular process of a flavin chromophore without binding site. For the reaction in buffered aqueous solution a quantum yield of F = 0.4 is observed. The turnover number in acetonitrile solution is increased by high benzyl alcohol concentration up to 20. The results show, that the covalent combination of a chromophore and a suitable binding si"@en . "3"^^ . . . "6223-6231" . "Z(MSM 223100001)" . . . . "RIV/60461373:22310/04:00011377!RIV/2005/MSM/223105/N" . "Catalytic Photooxidation of 4-Methoxybenzyl alcohol with Flavin Zinc(II) cyclen complex" . "Vasold, R." . "1"^^ . . "9"^^ . "Katalytick\u00E1 fotooxidace 4-methoxybenzylalkoholu pomoc\u00ED komplexu flavin-Zn(II)-cyklen"@cs . . . "0947-6539" . . "Catalytic Photooxidation of 4-Methoxybenzyl alcohol with Flavin Zinc(II) cyclen complex" . "10" . "RIV/60461373:22310/04:00011377" . . "556911" . "Catalytic Photooxidation of 4-Methoxybenzyl alcohol with Flavin Zinc(II) cyclen complex"@en . "Flavin-zinc(II)-cyclen 10 contains a substrate binding site (zinc(II)-cyclen) and a chromophore (flavin) covalently linked. Upon irradiation compound 10 effectively oxidizes 4-methoxybenzyl alcohol 11-CH3 to the corresponding benzaldehyde in water and in acetonitrile. In the presence of air the reduced flavin 10-H2 is reoxidized and catalytic amounts of 10 are sufficient for alcohol conversion. The mechanism of oxidation is based on photoinduced electron-transfer from coordinated benzyl alcohol to the flavin chromophore. This intramolecular process leads to a much higher efficiency of the photooxidation with 30-fold higher quantum yields than the comparable intermolecular process of a flavin chromophore without binding site. For the reaction in buffered aqueous solution a quantum yield of F = 0.4 is observed. The turnover number in acetonitrile solution is increased by high benzyl alcohol concentration up to 20. The results show, that the covalent combination of a chromophore and a suitable binding si" . . "24" . "Electron transfer;photooxidation;macrocyclic ligands;flavin;sensitizer"@en . "Katalytick\u00E1 fotooxidace 4-methoxybenzylalkoholu pomoc\u00ED komplexu flavin-Zn(II)-cyklen"@cs . . "22310" . . . "Catalytic Photooxidation of 4-Methoxybenzyl alcohol with Flavin Zinc(II) cyclen complex"@en . "K\u00F6nig, B." . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "Chemistry A European Journal" . .