Incorporation of in situ generated 3,3′-(sulfanediyl)bis(1-methyl-1,3-imidazolidine-2-thione) into a one-dimensional CuI coordination polymer with sulfur-bridged {Cu4IS10}n central cores

The reaction of [Cu(CH3CN)(4)](BF4) with 1-methyl-1,3-imidazolidine-2-thione {SC3H4(NMe)NH}, under aerobic conditions at room temperature, yielded an unusual one-dimensional coordination polymer, namely, catena-poly[[[(1-methyl-1,3-imidazolidine-2- thione-kappa S) copper(I)]-mu-(1-methyl-1,3-imidazolidine-2-thione)-kappa S-2:S-copper(I)-mu-[3,30-(sulfanediyl)bis(1-methyl-1,3-imidazolidine-2- thione)]-kappa S-5,S',S '':S,S ''] bis(tetrafluoridoborate)], {[Cu-2(C4H8N2S)2(C8H14N4S3)](BF4)2} n or [Cu-4(kappa(5):L-1-N- S-N-L1)(2)(kappa(1):L-1-NH)(2)(kappa(2):L-1-NH)(2)](n)(BF4) 4(n) 1 [L1 = SC3 H4(NMe)NH] with sulfur-bridged {CuI4S10} n central cores. The in situ generated bis(1-methyl-1,3-imidazolidinyl-2-thione) sulfide [{SC3H4(NMe)NSN(NMe)C3H4S; abbrev. L-1-N-S-N-L-1] ligand, in combination with 1-methyl-1,3-imidazolidine-2-thione (L-1-NH) ligands, construct this coordination polymer. Each CuI ion is bonded to four sulfur donor atoms in a distorted tetrahedral geometry and the formation of this polymer solely by sulfur donor atoms with {CuI4S10}(n) central cores, is the first such example in copper-heterocyclic-2-thione chemistry.