Synthesis, complex formation, spectral and crystallographic investigations of new crown ethers containing recognition site for sodium. Part V
作者:Z Hayvalı、M Hayvalı、Z Kılıç、T Hökelek
DOI:10.1016/s0022-2860(01)00603-2
日期:2001.10
Abstract The monotopic crownether ligands (5 and 6) and their sodium perchloratecomplexes (5a and 6a) have been synthesized. The crystalstructure of (5) has been determined, which contains 1 mol of water molecule. Compound (5) crystallizes in the monoclinic space group C 2/ c with a =39.324(8), b =8.011(1), c =16.877(4) A, β =107.61(2)°, V =5067.5(2) A 3 , Z =8 and D calc =1.289 g m −3 . The relative
摘要 合成了单位冠醚配体(5 和 6)及其高氯酸钠配合物(5a 和 6a)。已确定(5)的晶体结构,其中含有1 mol水分子。化合物(5)在单斜空间群C 2/ c 中结晶,a =39.324(8), b =8.011(1), c =16.877(4) A, β =107.61(2)°, V =5067.5(2) ) A 3 ,Z =8 且D calc =1.289 gm -3 。相对大环内孔尺寸估计为供体原子与其质心平均距离的两倍约为 1.68 A。关于 CN 亚胺键的非那宗和苯并冠醚前体处于反 ( E ) 构型。CN 亚胺键长和 CN-C 键角分别为 1.270(3) A 和 120.4(2)°。化合物(6) 和(6a) 为苯酚-亚胺形式,由 1 H-NMR 和紫外-可见数据支持。