Diaquabis(1,10-Phenanthroline)cobalt(II) Diorotate 2.25-Hydrate

Abstract

In the title compound, [Co(C<inf>12</inf>H<inf>8</inf>N<inf>2</inf>) <inf>2</inf>(H<inf>2</inf>O)<inf>2</inf>(C<inf>5</inf>H<inf>3</inf>N <inf>2</inf>O<inf>4</inf>)<inf>2</inf>·-2.25H<inf>2</inf>O, the cobalt cation, located on a twofold axis, is coordinated by two symmetry-related aqua ligands together with a pair of symmetry-related bidentate phenanthroline (phen) molecules, and exhibits a distorted octahedral coordination. The unique orotate anion in the asymmetric unit has a single negative charge. The coordinated water molecules link the orotate ions to the metal complex via O-H⋯O hydrogen bonds. Each uncoordinated water molecule is hydrogen bonded to orotate ions through O-H⋯O hydrogen bonds. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.