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4-(Dimethyl­amino)phenyl ethynyl telluride

The title compound, C(10)H(11)NTe, is the first organyl ethynyl telluride, R—Te—C C—H, to be structurally characterized. In the L-shaped mol­ecule, the aryl moiety, viz. Me(2)NC(6)H(4)Te, is almost perpendicular to the Te—C C—H fragment. The Te—Csp (2) bond [2.115 (3) Å] is significantly longer than...

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Detalles Bibliográficos
Autores principales: Farran, Joan, Alvarez-Larena, Angel, Piniella, Joan F., Capparelli, Mario V.
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2968982/
https://www.ncbi.nlm.nih.gov/pubmed/21582534
http://dx.doi.org/10.1107/S1600536809009404
Descripción
Sumario:The title compound, C(10)H(11)NTe, is the first organyl ethynyl telluride, R—Te—C C—H, to be structurally characterized. In the L-shaped mol­ecule, the aryl moiety, viz. Me(2)NC(6)H(4)Te, is almost perpendicular to the Te—C C—H fragment. The Te—Csp (2) bond [2.115 (3) Å] is significantly longer than the Te—Csp bond [2.041 (4) Å]. The Te—C C group is approximately linear [Te—C—C = 178.5 (4)° and C C = 1.161 (5) Å], while the coordination at the Te atom is angular [C—Te—C = 95.92 (14)°]. In the crystal structure, there are Csp—H⋯N hydrogen bonds which are perpendicular to the CNMe(2) group; the N atom displays some degree of pyramidalization. Centrosymmetrically related pairs of mol­ecules are linked by Te⋯π(ar­yl) inter­actions, with Te⋯Cg = 3.683 (4) Å and Csp—Te⋯Cg = 159.1 (2)° (Cg is the centroid of the benzene ring). These inter­actions lead to the formation of zigzag ribbons which run along c and are approximately parallel to (110).