air in pyridine Sn(II)-contg. compd. (1.72 mmol) was added to a soln. of a ligand (0.77 mmol) in pyridine; the mixt. was heated at reflux for 3 h; water was added; the ppt. was filtered, washed with water and air dried;

according to: A. D. Adler, F. R. Longo, F. Kampas, J. Kim, J. Inorg. Nuclear Chem. 32 (1970) 2443; chromy. (twice, Al2O3, chloroform);