Nonconventional Behavior of NCN-Chelated Organoantimony(III) Sulfide and Isolation of Cyclic Organoantimony(III) Bis(pentasulfide)

Dostal L; Jambor R; Ruzicka A; Jirasko R; Lochar V; Benes L; de Proft F

Inorganic Chemistry, Vol.48, No.22, 10495-10497, 2009

Dostal L, Jambor R, Ruzicka A, Jirasko R, Lochar V, Benes L, de Proft F

Organoantimony(III) sulfide (1) containing the NCN chelating ligand L [L = 2,6-(CH2NMe2)(2)C6H3] displays unusual dual behavior, being dimeric (LSbS)(2), with the central Sb2S2 core, in the solid state but monomeric in solution. Sulfide 1 reacts with elemental S to give the unprecedented cyclic bis(pentasulfide) LSb(mu-S-5)(2)SbL (2) with the central 12-membered ring Sb2S10.