C–H···π and C=O···π Intermolecular Interactions in Dibenzyl-3,6-dimethylpyrazine-2,5-dicarboxylate
作者:Joana A. Silva、Ana C. Santos、Ana T. Marques、Manuela Ramos Silva、Ana Matos Beja、Abílio J. F. N. Sobral
DOI:10.1007/s10870-007-9307-5
日期:2008.4
A new pyrazine compound, has been synthesised and characterised by single-crystal X-ray diffraction: monoclinic, P21/c with a = 11.0707(3) Å, b = 5.23700(10) Å, c = 16.6997(5) Å, β = 103.5385(16)°, Mr = 376.40, V = 941.30(4) Å3, Z = 2. Each molecule possesses C i symmetry with the two halves of the molecule related by an inversion centre. C–H···π and C=O···π interactions held the molecules together. C–H···π and C=O···π intermolecular interactions in dibenzyl-3,6-dimethylpyrazine-2,5-dicarboxylate Joana A. Silva, Ana C. Santos, Ana T. Marques, Manuela Ramos Silva, Ana Matos Beja, Abílio J. F. N. Sobrala In dibenzyl-3,6-dimethylpyrazine-2,5-dicarboxylate, each molecule possesses C i symmetry. The molecules are assembled in chains via carbonyl···π interactions.
一种新的吡嗪化合物已被合成并通过单晶X射线衍射进行表征:单斜晶系,P21/c,a = 11.0707(3) Å,b = 5.23700(10) Å,c = 16.6997(5) Å,β = 103.5385(16)°,Mr = 376.40,V = 941.30(4) ų,Z = 2。每个分子具有C_i对称性,分子的两个半部分由一个反演中心相关。C–H···π和C=O···π相互作用将分子结合在一起。在二苯基-3,6-二甲基吡嗪-2,5-二羧酸酯中,每个分子具有C_i对称性。这些分子通过羰基···π相互作用以链的形式组装在一起。