1029698-81-4Relevant academic research and scientific papers
Double cyclometallation of bridging 3,6-bis(2-thienyl)-1,2,4,5-tetrazine in a dinuclear mesityl(dimethylsulfoxide)platinum(II) complex: Structure and properties
Sarkar, Biprajit,Schurr, Thilo,Hartenbach, Ingo,Schleid, Thomas,Fiedler, Jan,Kaim, Wolfgang
, p. 1703 - 1706 (2008)
3,6-Bis(2-thienyl)-1,2,4,5-tetrazine (bttz) reacts with trans-Pt(dmso)2(mes)2, mes = mesityl = 2,4,6-trimethylphenyl, under twofold cyclometallation to yield structurally characterized (μ-bttz-2H+)[Pt(dmso)(mes)]2 with uncoordinated thiophene sulfur atoms and bttz deprotonated in the 3,3′ positions. The structural features include cis-positioned carbanionic ligands, twisted mesityl substituents, S-coordinated dmso ligands with the S{double bond, long}O bonds lying in the molecular plane, shortened inter-ring bonds, and rather short Pt-C bonds at 1.998(9)/2.00(1) A? (Pt-Cmes) and 1.985(9)/1.99(1) A? (Pt-Cbttz-2H+). Reversible reduction to {(μ-bttz-2H+)[Pt(dmso)(mes)]2}{radical dot}- causes a high-energy shift of the charge transfer bands and the appearance of an unresolved EPR signal at g = 1.9905.
