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超声反应条件下,以氧化银、2,2’-二苯基二羧酸(H2bpda)及柔性配体1,3-二(4-吡啶)丙烷(bpp)为原料,在1:1的甲醇-水混合溶剂中合成了一个全新的银配合物[Ag4(bpda)2-(bpp)4·14H2O·2CH3OH]n(1),并对该配合物进行了元素分析、红外光谱分析、热重分析以及晶体结构研究.X射线单晶结构分析表明,配合物1的空洞中包裹着一种由罕见的圣杯式十六核水簇、四个悬挂水分子及四个悬挂甲醇分子通过氢键作用所构筑的具有中心对称性的水-甲醇二元簇合物(H2O)20(CH3OH)4.其中的十六核水分子簇可看作由一组对称性相关的八核水簇相互耦合而成,而每个八核水则由两个折叠状的五核水通过共边形成.有趣地是,仔细分析发现目前的十六核水簇结构上非常类似由两个并环戊二烯通过[2+2]环加成而得到的一种复杂的有机烃,显示出水分子簇与有机分子结构上的相似性.
Under the conditions of ultrasonic reaction, silver oxide, 2,2’-diphenyldicarboxylic acid (H2bpda) and 1,3-bis (4-pyridyl) propane (bpp) A new silver complex [Ag4 (bpda) 2- (bpp) 4 · 14H2O · 2CH3OH] n (1) has been synthesized from water and water. The complex has been characterized by elemental analysis, X-ray single crystal structure analysis shows that the cavity of the complex 1 is surrounded by a rare chalice-like 16-core water cluster, four dangling water molecules and four dangling methanol molecules by hydrogen bonding (H2O) 20 (CH3OH) 4 with center symmetry was constructed, in which the hexadecimal water clusters can be regarded as a series of symmetry-related octopus clusters , While each octa-nuclear water is formed by two collapsed pentranuclear waters through the common edge.It is interesting to note that the careful analysis shows that the current sixteen nuclear-like clusters are very similar in structure to two cyclopentadienyls [2 + 2] cycloaddition of a complex organic hydrocarbons, showing the structural similarity between water molecules and organic molecules.