Crystal structure ofcis-aquachloridobis(1,10-phenanthroline-κ2N,N′)chromium(III) tetrachloridozincate monohydrate from synchrotron data

Abstract

The structure of the title compound, [CrCl(C12H8N2)2(H2O)][ZnCl4]·H2O, has been determined from synchrotron data. The CrIIIion is bonded to four N atoms from two 1,10-phenanthroline (phen) ligands, one water molecule and a Cl atom in acisarrangement, displaying an overall distorted octahedral coordination environment. The Cr—N(phen) bond lengths are in the range of 2.0495 (18) to 2.0831 (18) Å, while the Cr—Cl and Cr—(OH2) bond lengths are 2.2734 (7) and 1.9986 (17) Å, respectively. The tetrahedral [ZnCl4]2−anion is slightly distorted owing to its involvement in O—H...Cl hydrogen bonding with coordinating and non-coordinating water molecules. The two types of water molecules also interact through O—H...O hydrogen bonds. The observed hydrogen-bonding pattern leads to the formation of a three-dimensional network structure.