Diaquabis(<scp>DL</scp>-α-lipoato-κ<sup>2</sup> <i>O</i>,<i>O</i>′)manganese(II)
Abstract
The manganese(II) coordination compound, [Mn(C 8 H 13 S 2 O 2 ) 2 (H 2 O) 2 ], with two bidentate α-lipoate ligands and two coordinating water molecules, has been structurally characterized. The cantral Mn II atom lies on a crystallographic twofold rotation axis and adopts a distorted octahedral coordination environment, with carboxylate groups chelating the metal in a κ 2 O , O ′-binding mode. One of the sulfur atoms within the 1,2-dithiolane ring exhibits positional disorder over two sites, with refined occupancies of 0.92 and 0.08. The complex is isostructural with previously reported Zn II and Cd II analogues, both of which also display positional disorder in the 1,2-dithiolane ring. The molecules are linked via intermolecular O—H...O and C—H...S hydrogen bonds into a di-periodic supramolecular framework parallel to (100).