The Crystal Structure of catena-{μ-[2-Methyl-2-(phenylthio)propanoato-O,O′]-{tris-μ-[2-methyl-2 -(phenylthio)propanoato-O,O′]-dizinc(II)}}

Abstract

.The crystal structure of the anhydrous zinc(11) complex of 2-methyl-2-(phenylthio) propanoic acid, with formula [Zn₂(C₁₀H₁₂O₂)₄]_n, has been determined by X-ray diffraction at 20ºC and refined to a residual R 0.041 for 2885 observed reflections. Crystals are monoclinic, space group P 2₁, with two diper units of the polymer in a unit cell with dimensions a 12.710(4), b 13.760(2), c 12.699(6) Å, β 95.44(5)º. The polymer structure is based on a repeating tris -carboxylate-bridged dimer unit with each zinc centre tetrahedral [Zn-O (mean) 1.958(5) Å, Zn-Zn 3.393(2) Å]. The dimer is extended into a linear polymer chain by an O,O' bridge through the carboxy group of the fourth carboxylate ligand.