摘要
标题化合物C23H26O4是由水杨醛与5，5-二甲基-1，3-环己二酮在N，N-二甲基甲酰胺中反应而得．结构通过单晶X-射线行射法确定，其晶体属于单料晶系，空间群P21/c，a=7．056（7），b=20.263（3），c=13．665（2）A，β＝93．32（1）°，V=1950．7（4）A3，Mr=366．46，Dc=1.248g／cm3，Z=4，μ（MoKa）=0．84cm－1，F（000）=784。晶体结构用直接法解出，经全矩阵最小二乘法对原子参数进行修正，最后的偏离因子R=0．068，Rw=0．075。晶体结构分析结果表明，分子中存在一个共轭的烯醇式结构。
The title compound (C23H26O4) has been synthesized by reaction of salicylal and 5, 5-dimethyl-1, 3-cyclohexanedione in N, N-dimethyirormamide and its structure was determinedby single crystal X-ray diffraction. The crystal is monoclinic, space group P21/c with a= 7. 056(7), b=20. 263(3), c=13. 665(2) A, P=93. 32(1)°, V=195O. 7(4) A3, Mr=366. 46, Dc= 1. 248 g/cm3, Z=4, μ(MoKa) =0. 84 cm-1, F(000) = 784. The structure was solved by direct methods, and refined by full-matrix least-squares method to a final R = 0. 068 and Rw =0. 075. The crystal structure shows that there is a conjugated enol form in the molecule.
