一种绿色荧光有机超分子聚合物的合成与表征
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摘要
溶剂热条件下,用3,4',5-联苯三羧酸(biphenyl-3,4',5-tricarboxylic acid,H3bpt)和1,4-bis[2-(4-pyridyl) ethenyl]benzene (bpeb)合成了一种新颖的有机超分子聚合物[(H2bpt)2(H2bpeb)]n。单晶X-射线衍射研究表明,组分H2bpt与H2bpeb通过强氢键构筑了二维的超分子聚合层,进而通过层间强π-π相互作用形成三维超分子结构。结晶样品通过元素分析、热重(TG)、粉末X-ray衍射等进行了表征。370 nm紫外线激发下,化合物的最大荧光发射波长为516 nm;在365 nm紫外光照射下,晶体样品也显绿色,是潜在的绿色荧光材料。
One novel organic supramolecular polymer [(H_2bpt)2(H_2bpeb) ]n( 1) was synthesized from biphenyl-3,4',5-tricarboxylic acid(H_3bpt) and 1,4-bis[2-( 4-pyridyl) ethenyl]benzene( bpeb) under solvothermal conditions.Single-crystal structural analysis revealed that a two-dimensional supramolecular polymeric layer was built from H_2bpt and H_2bpeb through strong hydrogen bonds. The elemental analysis,thermal stability,powder X-ray diffractions,and so on,were carried out. When being excited at 370 nm,compound 1 exhibited emission peak at 516 nm. Under the 365 nm ultraviolet light,the crystal 1 displayed green,which may be used as potential green fluorescent material.
One novel organic supramolecular polymer [(H_2bpt)2(H_2bpeb) ]n( 1) was synthesized from biphenyl-3,4',5-tricarboxylic acid(H_3bpt) and 1,4-bis[2-( 4-pyridyl) ethenyl]benzene( bpeb) under solvothermal conditions.Single-crystal structural analysis revealed that a two-dimensional supramolecular polymeric layer was built from H_2bpt and H_2bpeb through strong hydrogen bonds. The elemental analysis,thermal stability,powder X-ray diffractions,and so on,were carried out. When being excited at 370 nm,compound 1 exhibited emission peak at 516 nm. Under the 365 nm ultraviolet light,the crystal 1 displayed green,which may be used as potential green fluorescent material.
引文
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[3]贾兰,刘晓华,马彦龙,等.超分子组装:设计与制备荧光传感器的新途径[J].化学与生物工程,2013,30(7):13-17.
[4]范瑞清,孙存发,王平,等.三维超分子化合物(C20O2H14)(C12N2H8)的合成、晶体结构与荧光性质[J].发光学报,2010,31(6):931-935.
[5]Huang K L,Liu X,Liang G M. Second-ligand-dependent multi-fold interpenetrated architectures of two 3D metal(II)-organic coordination polymers[J]. Inorg. Chim. Acta.,2009,362:1565-1570.
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[7]Park I H,Chanthapally A, Zhang Z, et al. Metal-organic organopolymeric hybrid framework by reversible[2+2]cycloaddition reaction[J]. Angew. Chem. Int. Ed.,2014,53:414-419.
[8]Yang S Y,Deng X L,Jin R F,et al. Crystallographic snapshots of the interplay between reactive guest and host molecules in a porous coordination polymer:stereochemical coupling and feedback mechanism of three photoactive centers triggered by UV-induced isomerization,dimerization,and polymerization reactions[J]. J. Am. Chem. Soc.,2014,136:558-561.
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