%0 Journal Article
%T 4-(Dimethylamino)phenyl ethynyl telluride
%A Joan Farran
%A Angel Alvarez-Larena
%A Joan F. Piniella
%A Mario V. Capparelli
%J Acta Crystallographica Section E
%D 2009
%I International Union of Crystallography
%R 10.1107/s1600536809009404
%X The title compound, C10H11NTe, is the first organyl ethynyl telluride, R！Te！C[triple-bond]C！H, to be structurally characterized. In the L-shaped molecule, the aryl moiety, viz. Me2NC6H4Te, is almost perpendicular to the Te！C[triple-bond]C！H fragment. The Te！Csp2 bond [2.115 (3)  ] is significantly longer than the Te！Csp bond [2.041 (4)  ]. The Te！C[triple-bond]C group is approximately linear [Te！C！C = 178.5 (4)＜ and C[triple-bond]C = 1.161 (5)  ], 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 CNMe2 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)   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).
%U http://scripts.iucr.org/cgi-bin/paper?S1600536809009404