The photolysis of bis(dithiobenzil)nickel in chloroform
Kluwer Academic Publishers
Bis(dithiobenzil)nickel, although photoinert in nonhalogenated solvents as well as in chloroform under 313 nm irradiation, reacts in CHCl3 under 254 nm irradiation to yield 2,3,5,6-tetraphenyl-1,4-dithiin and a water-soluble nickel(II) species. The reaction is driven through absorption of light by both the solvent and the metal complex.
Ian W. Jones, Xia Tian, and Patrick E. Hoggard, "The photochemistry of bis(dithiobenzil) nickel in chloroform", Trans. Met. Chem. 27, 902-905 (2002).