Thiolato-bridged \dqLinear\dq trinuclear platinum complexes Pt3(m-SR)4(dppm)22+. Inorganica Chimica Acta, (357)7:2134--2142, 2004. [PUMA: arylthiolate bridged crystal dinuclear linear methanediphosphine phenylphosphinomethane platinum prepn structure tolylthiolate trinuclear trinuclear;platinum]