Reduced and Excited States of (bpym)[PtCl2]n (bpym = 2,2'-Bipyrimidine; n = 1, 2): Experiments and DFT Calculations. Inorganic Chemistry, (41)16:4139--4148, 2002. [PUMA: crystal electrochem complex complex;electronic complex;luminescence bipyrimidine calcd structure platinum redn;Raman complex;mol complex;platinum prepn]