You are here: Home :: Area NEM :: Chemistry :: Inorganic chemistry

Ernesto Schulz Lang, Gabriela Nanci Ledesma, Ulrich Abram, Maurício Vega-Teijido, Ignez Caracelli, Julio Zukerman-Schpector

Synthesis, crystal structure and theoretical studies of aryltellurenyl tetramethylthiourea(tmtu) iodine complexes: Ph-Te(tmtu)I (1) and β-naphtyl-Te(tmtu)I (2)

Keywords: Tellurium(II), Tetramethylthiourea, Supramolecular, X-ray diffraction, Single crystal structure analysis

(1) C₁₁H₁₇IN₂STe, M_r = 463.83, P2₁/n, a = 7.6582(8), b = 13.8008(9), c = 15.026(3) Å, β = 96.233(12)°, Z = 4, R₁ = 0.0318. (2) C₁₅H₁₉IN₂STe, M_r = 513.88, P2₁/n, a = 8.434(5), b = 11.697(5), c = 18.472(5) Å, β = 98.556(5)°, Z = 4, R₁ = 0.0236. The synthesis of the aryltellurenyl N,N′-tetramethylthiourea (tmtu) iodide has been performed by ligand exchange with potassium iodide and the corresponding aryltellurenyl(tmtu) bromide. In both structures the tellurium atom is primarily three-coordinated, being bonded to a carbon atom of the organic ring and, in directions nearly perpendicular to the Te—C bond, to one tmtu sulfur atom and one iodine. In addition there are Te…secondary bonds, joining the molecules in centrosymmetric dimers, which in turn are joined through C—H…I and C—H…S interactions, in (1) and (2) respectively.

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 221, 02/2006
Pages: 166 - 172

Show full article (external site)

Show all available items of this journal

 

Area NEM