Two saccharinate complexes:

Abstract

The title saccharinate complexes, aqua[1,2-benzisothiazol-3(2H)-onato 1,1-dioxide-N]bis(1,10-phenanthroline-N,N′)man­ganese(II) 1,2-benz­isothia­zol-3(2H)-onate 1,1-dioxide,[Mn(C7H4NO3S)(C12H8N2)2(H2O)](C7H4NO3S), and aqua[1,2-benz­iso­thiazol-3(2H)-onato 1,1-dioxide-N]­bis­(2,2′-bi­pyri­dine-N,N′)­cobalt(II) 1,2-benz­iso­thia­zol-3(2H)-onate 1,1-di­oxide, [Co­(C7H4NO3S)­(C10H8N2)2­(H2O)]­(C7H4NO3S), have been prepared and their crystal structures determined at 150 K. The structure of the manganese complex consists of repeated alternating [Mn(phen)2(sac)(H2O)]+ cations and non-coordinated saccharinate anions. The water molecule, bound to manganese as part of a slightly distorted octahedral arrangement, is hydrogen bonded to an O atom of the SO2 group in the saccharinate counter-ion. In contrast, the cobalt complex has one pseudo-octahedral [Co(bipy)2(sac)(H2O)]+ cation, with the cobalt-bound water molecule hydrogen bonded to the N atom of the accompanying free saccharinate anion.