Che Wu, Lakshmi Nishanth Kakarla, Chandru P Chandrasekaran, Xiaodong Zhang, Joel T Mague, Stephen Sproules, James P Donahue
The 1,2,4,5-tetrakis(alkylthio)benzenes are redox-active organosulfur molecules that support oxidation to a stable radical cation. Their utility as ligands for the assembly of multimetal complexes with tailored functionality/property is unexamined. Here, 1,2,4,5-tetrakis(isopropylthio)benzene (tptbz, 1 ) is shown to bind PdCl2 at either one end, leaving the other open, or at both ends to form centrosymmetric [Cl2 Pd(tptbz)PdCl2 ], 4 . Ligand metathesis between Na2 [(N≡C)2 C2 S2 ] (Na2 mnt) and [Cl2 M(tptbz)] (M = Pd, 2 ; M = Pt, 3 ) yields [(mnt)M(tptbz)] (M = Pd, 5 ; M = Pt, 6 ), but an alternative route involving transmetalation with [(mnt)SnMe2 ] delivers substantially greater yield...
December 22, 2023: Inorganic Chemistry