Crystal structure of indium(III) dithizonate

Abstract

The crystal structure of indium(III) dithizonate, [In(Hdz)₃], has been determined by single-crystal X-ray diffraction methods at 295(1) K, and refined by least squares to a conventional residual of 0.043 for 3 081 ‘ observed ’ reflections. Crystals are triclinic, space group P, with a= 18.469(6), b= 14.928(7), c= 7.570(4)Å, α= 80.31 (4), β= 86.58(4), γ= 75.48(4)°, and Z= 2. The asymmetric unit of the structure is the mononuclear [In(Hdz)₃] molecule; the indium atom is trigonally bipyramidal, five co-ordinated, one ligand being unidentate and co-ordinated equatorially through the sulphur [In–S 2.468(3)Å], while the other two are bidentate (N,S), spanning axial and equatorial positions. The axial In–N distances are 2.372(6) and 2.334(6)Å, while the associated equatorial In–S distances are 2.477(3) and 2.467(3)Å.