Synthesis, Structural Characterization and Spectroscopic Properties of 1,2-Bis[4-(3,5-dimethyl-1H-pyrazol-1-yl)-2-oxobutyl]benzene
作者:Miguel Guerrero、Josefina Pons、Mercè Font-Bardia、Teresa Calvet、Josep Ros
DOI:10.1007/s10870-010-9960-y
日期:2011.5
The crystal structure of the title compound C22H30N4O2·H2O (L), has been determined using X-ray diffraction at 293 K. The crystal of 1,2-bis[4-(3,5-dimethyl-1H-pyrazol-1-yl)-2-oxobutyl]benzene is in triclinic crystal system with space group P(−1) (Z = 2), lattice parameters a = 8.225(6) Å, b = 10.967(6) Å, c = 12.903(6) Å, V = 1119.1(11) Å3. Analyses of single crystals of L, crystallized from dichloromethane/diethyl ether (1:1), revealed that the molecules are arranged in couples, which adopt a pseudo chair conformation, by means of intermolecular O–H···N hydrogen bonding interactions. Moreover, the extended structure revealed a 1D chain caused by several C–H···N intermolecular interactions. The crystal of a N,O-hybrid pyrazolic ligand has been determined. Analyses of single crystals revealed that the molecules in the crystal pack are arranged in couples, due to intermolecular O–H···N and C–H···N interactions.
标题化合物C22H30N4O2·H2O(L)的水晶结构在293 K下通过X射线衍射测定。1,2-双[4-(3,5-二甲基-1H-吡唑-1-基)-2-氧代丁基]苯的水晶属于三斜晶系,空间群为P(−1) (Z = 2),晶格参数为a = 8.225(6) Å、b = 10.967(6) Å、c = 12.903(6) Å、V = 1119.1(11) Å3。对从二氯甲烷/二乙醚(1:1)中结晶的L单晶的分析表明,分子以对的形式排列,通过分子间O–H···N氢键相互作用形成伪椅构象。此外,扩展结构显示由多个C–H···N分子间相互作用形成的1D链。N,O杂化吡唑配体的晶体结构已经确定。对单晶的分析表明,由于分子间O–H···N和C–H···N相互作用,晶体中的分子以对的形式排列。