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采用缓慢蒸发溶剂法在水中合成了2个含双磺酸基的化合物A-2,5-DSA·(Hphen)2·2H2O(1)和[Co(phen)2(H2O)2]·(A-2,5-DSA)·3H2O(2)(A-2,5-DSA=苯胺-2,5-二磺酸根离子,phen=1,10-邻菲罗啉)。化合物1中,相邻的质子化的1,10-邻菲罗啉反向堆叠在一起,水分子通过氢键与(Hphen)+和苯胺-2,5-二磺酸根离子相连,形成二维的层状结构。化合物2中,钴离子与2个1,10-邻菲罗啉和2个水分子配位,构成[Co(phen)2(H2O)2]2+阳离子。3个自由的水分子通过氢键将苯胺-2,5-二磺酸根离子和[Co(phen)2(H2O)2]2+连接形成三维网状结构。两个化合物中苯胺-2,5-二磺酸根离子均起到平衡电荷的作用。室温下2个化合物均具有荧光性质,其最大发射峰分别在601 nm和441 nm。
Two bis-sulfonic acid group-containing compounds A-2,5-DSA · (Hphen) 2 · 2H2O (1) and [Co (phen) 2 (H2O) 2] · (A -2,5-DSA) · 3H2O (2) (A-2,5-DSA = aniline-2,5-disulfonate ion, phen = 1,10-phenanthroline). In compound 1, the adjacent protonated 1,10-phenanthroline was stacked in the opposite direction and the water molecule was connected to (Hphen) + and aniline-2,5-disulfonate ion through hydrogen bond to form a two-dimensional Layered structure. In compound 2, cobalt ion coordinated with two 1,10-phenanthroline and two water molecules to form [Co (phen) 2 (H2O) 2] 2+ cation. Three free water molecules hydrogen bond the aniline-2,5-disulfonate ion and [Co (phen) 2 (H2O) 2] 2+ to form a three-dimensional network. The aniline-2,5-disulfonate ion in both compounds functions to balance the charge. The two compounds have fluorescence properties at room temperature, the maximum emission peak at 601 nm and 441 nm respectively.