INVESTIGADORES
LEDESMA Gabriela Nanci
artículos
Título:
Synthesis, crystal structure and theoretical studies of aryltellurenyl tetramethylthiourea(tmtu) iodine complexes: Ph-Te(tmtu)I (1) and b-naphthyl-Te(tmtu)I (2)
Autor/es:
SCHULZ LANG, E.; LEDESMA, G. N.; ABRAM, U.; VEGA-TEIJIDO, M.; CARACELLI, I.; ZUKERMANN-SCHPECTOR, J.
Revista:
ZEITSCHRIFT FUR KRISTALLOGRAPHIE
Editorial:
Oldenbourg Wissenschaftsverlag
Referencias:
Lugar: Munich; Año: 2006 vol. 221 p. 166 - 172
ISSN:
0044-2968
Resumen:
(1) C11H17In2STe, Mr=463.83, P21/n, a =7.6582(8), b=13.8008(9), c=15.026(3)A, B=96.233(12)°, Z=4, R1=0.0318. (2) C15H19In2STe,Mr=513.88, P21/n, a =8.434(5), b= 11.697(5),c=18.472(5) A, B=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 TeC 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.
