中文摘要：

合成了几个1,3,5-三乙基衍生物,它们分别含有丙二酸取代基（2～5）、戊烷-2,4-二酮取代基（6）和3,5-二甲基-1H-吡唑取代基（7）,并对上述衍生物的结构进行了表征.1H NMR分析表明,这些化合物在溶液中具有高度对称性;X射线单晶衍射分析确认上述化合物在固态时均采取1,3,5-交替构象,即3个功能取代基团处在中心苯环平面的一边,3个乙基则位于该中心苯环平面的另一边.分子内和分子间氢键是化合物4,5及7实现超分子自组装的主要作用力.化合物7（L）的吡唑取代基与铜离子（Ⅱ）通过Cu—N的配位键作用形成笼状配合物8（Cu3L2）,在配合物8中,两个配体分子7（L）采取顺式面面相向的构象.

英文摘要：

Aligning functional groups on a respective molecular platform is one of the fundamental design principle in construction of supramolecular objects.The geometrical alignment of the functional groups of the tripodal molecular scaffold,1,3,5-trisubstituted-2,4,6-triethyllbenzene,has made it fulfill this requirement,and thus being used extensively as molecular platform in designing artificial receptors.Tripodal 1,3,5-tris（2-methylenemalonic acid）-2,4,6-triethyllbenzene derivatives（2—5）,1,3,5-tris（2-methylenepentane-2,4-dione）-2,4,6-triethyllbenzene（6） and 1,3,5-tri[（3,5-dimethyl-1H-pyrazol-4-yl）methyl]-2,4,6-triethylbenzene（7）,adopting up-down alternate conformations with three substituted functional groups reside on one side of the central phenyl plane,and the three ethyl groups located on the opposite side of the central benzene ring,have thus been synthesized.1H NMR spectra of these compounds were in accord with that they are all in high levels of symmetry.Single crystal X-ray structure analysis revealed that they all indeed adopt an 1,3,5-alternate conformation with the three functional arms reside on one side of the benzene plane,and the three ethyl groups were placed on the opposite side of the benzene plane.Intermolecular hydrogen-bond interactions were the major driving force for the solid state assembly of the compounds with malonic acid（4）,malonamide（5）,as well as 3,5-dimethyl-1H-pyrazolyl（7） functions.However,no molecular capsules were formed by these compounds via intermolecular hydrogen-bond interactions in the solid state.The interaction of copper（Ⅱ） ions and pyrazolyl-containing compound 7（L） resulted in the formation of a discrete cylindrical cage-like complex（Cu3L2）（8） via Cu—N coordination bonds by the connection of three Cu2＋ ions and six pyrazolyl nitrogen atoms from two 7 ligands.The two ligands 7 in complex 8 were in a cis,cis,cis-conformation and a face-to-face orientation.The system could thus been used in construction of tripo-shaped