Trans-Bis(diethanolamine O)bis(saccharinato-N)cadmium(II)

Abstract

The structure of the title complex consists of isolated [Cd(C<inf>7</inf>H<inf>4</inf>NO<inf>3</inf>S)<inf>2</inf>(C<inf>4</inf>H<inf>11</inf>NO<inf>2</inf>)<inf>2</inf>] units. The Cd2+ cation lies on an inversion centre and is octahedrally coordinated by two N, O -bidentate diethanolamine (dea) and two N-bonded saccharinate (sac) ligands [saccharin is 1,2-benzisothiazol-3(2H)-one 1,1-dioxide]. The dea ligands constitute the equatorial plane of the octahedron, forming two five-membered chelate rings around the CdII ion, while the sac ligands are localized at the axial positions. The Cd-N<inf>sac</inf>, Cd-N<inf>dea</inf> and Cd-O<inf>dea</inf> bond distances are 2.3879 (12), 2.3544 (14) and 2.3702 (13) Å, respectively. The H atoms of the free and coordinated hydroxyl groups of the dea ligands are involved in hydrogen bonding with the carbonyl and sulfonyl O atoms of the neighbouring sac ions, while the amine H atom forms a hydrogen bond with the free hydroxyl O atom. The individual molecules are held together by strong hydrogen bonds, forming an infinite three-dimensional network.