Synthesis and structure of tetrakis(phenylenethiourea)tellurium(II) chloride dihydrochloride, C28H26N8S4Cl4Te

doi:10.1016/S0277-5387(00)84648-3

Polyhedron

Volume 3, Issue 8, 1984, Pages 921-927

https://doi.org/10.1016/S0277-5387(00)84648-3 Get rights and content

Abstract

Reaction of tellurium(IV) with excess phenylenethiourea(2-mercaptobenzimidazole) in aqueous methanolic hydrochloric acid leads to the formation of Te(II) complex, tetrakis(phenylenethiourea)tellurium(II) chloride dihydrochloride. The characterisation and crystal structure of the complex are reported. The crystals are monoclinic, space group P2₁/c, a = 13.939(5), b = 26.523(9), c = 4.873(2) Å, β = 100.29(4)°, V = 1772.6 Å³, M = 872.4, D_c = 1.651 g cm⁻³, Z = 2, F(000) = 868, μ(MoK_α) = 1.298 mm⁻¹. Final R = 0.055 and R_W = 0.056 for 918 independent reflections. The tellurium atom in the molecule lies at the crystallographic centre of symmetry and is bonded to four phenylenethiourea sulphur atoms in a square planar arrangement with TeS(1) = 2.678(6), TeS(2) = 2.674(5) Å and S(1)TeS(2) is 90.5(3)°. The ligand behaves as a thione. Chlorine atoms remain outside the coordination sphere of the Te and stabilise the packing arrangement in the unit cell through hydrogen bondings to nitrogen atoms.

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Synthesis and structure of tetrakis(phenylenethiourea)tellurium(II) chloride dihydrochloride, C28H26N8S4Cl4Te

Abstract

Inorg. Chim. Acta

J. Inorg. Nucl. Chem.

Adv. Inorg. Chem. Radiochem.

Pure and Appl. Chem.

Inorg. Chem.

Acta Chem. Scand.

Acta Chem. Scand.

Acta Chem. Scand.

Acta Chem. Scand.

Acta Chem. Scand.

Acta Chem. Scand.

Acta Chem. Scand.

Synthesis and structure of tetrakis(phenylenethiourea)tellurium(II) chloride dihydrochloride, C₂₈H₂₆N₈S₄Cl₄Te