Charge-transfer photolysis of copper(II) dithiocarbamate mixed-ligand complexes in toluene/alcohol solutions.
Charge-transfer (CT)-photolysis of Cu(II) dithiocarbamate mixed-ligand complexes Cu(II)(Et2dtc)X (X = Cl-, Br-) and Cu(II)(Et2dtc)(+)...Y- (Y = ClO4-, NO3-) has been studied in toluene/ROH and compared with our previous data obtained in chloromethane/ROH solutions, where chloromethane = CCl4, CHCl3 or CH2Cl2 and ROH = MeOH, EtOH, i-PrOH or i-BuOH. An EPR evidence is obtained about the formation of a new copper(II) dithiocarbamate mixed-ligand complex during simultaneous photolyses of Cu(II)(Et2dtc)+ and Cu(II)(Et2dtc)2 species in toluene/ROH. The role of the solvent is discussed from the combined analysis of spectrophotometric and EPR data and quantum yield results.
Jeliazkova
Bojana
B
Department of Chemistry, Sofia University, 1 James Bourchier Avenue, 1164 Sofia, Bulgaria. bgj@chem.uni-sofia.bg
Dimitrova
Anna
A
Doicheva
Maya
M
D000438:Alcohols / Q000737:chemistry*; D002627:Chemistry, Physical / Q000379:methods; D003300:Copper / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D008024:Ligands; D010777:Photochemistry; D010782:Photolysis; D011789:Quantum Theory; D012996:Solutions; D013053:Spectrophotometry; D013859:Thiocarbamates / Q000737:chemistry* / Q000528:radiation effects; D014050:Toluene / Q000737:chemistry*
D000438:Alcohols; D008024:Ligands; D012996:Solutions; D013859:Thiocarbamates; D014050:Toluene; D003300:Copper