以1,5-萘二磺酸(1,5-H2NDS)和三苯甲胺(TPMA)为建筑块、水和二氧六环(DO)混合溶液为溶剂,分别在室温和70 ℃下合成了2个超分子化合物2(HTPMA)+·(NDS)2-·2DO·2H2O (1)和(HTPMA)+·(H3O)+·(NDS)2-·DO (2),并对其进行了单晶X-射线衍射、热重分析(TG)及荧光光谱(PL)分析.在化合物1中,[(SO3)2(NH3)2]簇通过N-H…O氢键与DO分子相互作用形成沿a方向的一维带状结构,相邻的带通过NDS2-阴离子的萘环扩展为二维层,这些层进一步由水分子与HTPMA+之间的C-H…O氢键连接形成三维超分子网络.化合物2中的[(S1O3)2(NH3)2]簇和[(S2O3)2(H3O)2]簇相互连接形成沿b方向的一维带状结构,这些带同样通过萘环扩展为二维层状结构.热重分析结果表明,化合物1和2分别于50 ℃和86 ℃开始失重.此外,2个化合物在390、392 nm处均具有较强的室温固态荧光发射.%Two supramolecular complexes 2(HTPMA)+·(NDS)2-·2DO·2H2O (1) and (HTPMA)+·(H3O)+·(NDS)2-·DO (2) are obtained from the reaction of triphenylmethylamine (TPMA) with naphthalene-1,5-disulfonic acid (1,5-H2NDS) in the mixture of H2O and dioxane (DO) at room temperature and 70 ℃, respectively, which have been characterized by single-crystal X-ray diffraction, TG and PL.In the structure of complex 1, [(SO3)2(NH3)2] clusters interact with DO molecules through N-H…O hydrogen bonding interactions to form 1-D tape along a-axis.Adjacent tapes are extended into 2-D layers by naphthalene rings of the NDS2-anions, which are then further linked into 3-D supramolecular network by the water molecules through C-H…O hydrogen bonding interactions.By contrast, the [(S1O3)2(NH3)2] and [(S2O3)2(H3O)2] clusters in complex 2 are joined by H3O+ through O-H…O hydrogen bonding interactions to form 1-D tape along the b-axis.The 2-D layer is also extended by naphthalene rings of the NDS2-anions.Thermogravimetric analyses indicate that complexes 1 and 2 begin to lose the solvents at 50 ℃ and 86 ℃.Moreover, the two complexes exhibit luminescent emissions at 390 and 392 nm at room temperature in the solid-state.
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