Incorporation of in situ generated 3,3'-(sulfane-diyl)bis-(1-methyl-1,3-imidazolidine-2-thione) into a one-dimensional Cu I coordination polymer with sulfur-bridged {Cu I 4 S 10 } n central cores.

The reaction of [Cu(CH 3 CN) 4 ](BF 4 ) with 1-methyl-1,3-imidazolidine-2-thione {SC 3 H 4 (NMe)NH}, under aerobic conditions at room temperature, yielded an unusual one-dimensional coordination polymer, namely, catena -poly[[[(1-meth-yl-1,3-imidazolidine-2-thione-κ S )copper(I)]-μ-(1-methyl-1,3-imidazolidine-2-thione)-κ 2 S : S -copper(I)-μ-[3,3'-(sulfanedi-yl)bis-(1-methyl-1,3-imidazolidine-2-thione)]-κ 5 S , S ', S '': S , S ''] bis-(tetra-fluorido-borate)], {[Cu 2 (C 4 H 8 N 2 S) 2 (C 8 H 14 N 4 S 3 )](BF 4 ) 2 } n or [Cu 4 (κ 5 : L 1 -N-S-N- L 1 ) 2 (κ 1 : L 1 -NH) 2 (κ 2 : L 1 -NH) 2 ] n (BF 4 ) 4 n 1 [ L 1 = SC 3 H 4 (NMe)NH] with sulfur-bridged {Cu I 4 S 10 } n central cores. The in situ generated bis-(1-methyl-1,3-imidazolidinyl-2-thione) sulfide [{SC 3 H 4 (NMe)NSN(NMe)C 3 H 4 S; abbrev. L 1 -N-S-N- L 1 ] ligand, in combin-ation with 1-methyl-1,3-imidazolidine-2-thione ( L 1 -NH) ligands, construct this coordination polymer. Each Cu I ion is bonded to four sulfur donor atoms in a distorted tetra-hedral geometry and the formation of this polymer solely by sulfur donor atoms with {Cu I 4 S 10 } n central cores, is the first such example in copper-heterocyclic-2-thione chemistry.