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1、Synthesis,CrystalStructureandPropertyofTwoSupramoleculesAssembledfromWeakInteractionsWEIHao(韦昊)WUGang(吴刚)*LIUZhen-Feng(刘振锋)(DepartmentofChemistryandLifeScience,ChuZhouUniversity,ChuZhou239012)ABSTRACTTwocomplexes,[Cu2(Htdb)4(H2O)2](1),[Cd(bipy)2(Hmcmbc)2](2),(H2tdb=2,2-thiodibenzoicacid;H2mcmbc=m
2、-(carboxyl-methyloxy)-benzenecarboxylicacid;bipy=4,4΄-Bipyridine)havebeenprepared,andwerecharacterizedbyelementalanalysis,FT-IRandsingle-crystalX-raydiffraction.Structuresindicatethatcomplex1isasinglemolecule,and2isaone-dimensionalchain.Theirtwo-dimensionalandthree-dimensionalframeworksareconstru
3、ctedthroughhydrogenbonding,π···πorC-H···πstackingetalweakinteractions.Thecyclicvoltametricbehaviorofcomplex1andluminescencepropertyofcomplex2wereinvestigated.1belongstothetriclinicsystem,spacegroupP-1witha=7.8607(6),b=11.7619(9),c=15.3481(12)Å,α=109.3670(10),β=92.4420(10),γ=92.0450(10)°,V=1335.65
4、(18)Å3,Mr=1256.26,Dc=1.5619(2)g/cm3,F(000)=642,μ=1.029mm–1,Z=1,thefinalR=0.0289andwR=0.0763for5199observedreflectionswithI>2σ(I).Complex2crystallizesintriclinic,spacegroupP-1witha=9.6378(10),b=9.7508(10),c=19.055(2)Å,α=88.7020(10),β=80.5260(10),γ=69.2000(10)º,V=1649.9(3)Å3,Mr=815.07,Dc=1.641g/cm3
5、,μ=0.732mm−1,F(000)=828,Z=2,thefinalR=0.0511andwR=0.1149for4729observedreflections(I>2σ(I)).Keywords:hydrogenbond,C-H···πinteraction,cyclicvoltammetry1.INTRODUCTIONMetal-organiccoordinationcompoundshavedrawngreatresearchinterestinrecentyearsbecauseoftheirpotentialapplicationsinmolecularadsorption
6、andseparationprocesses[1-3],ionexchange[4],catalysis[5,6]andsensortechnology[7,8].Theassemblyreactionbetweenasuitabletransitionmetalandaligandwithrichcoordinationchemistry,donororacceptorofhydrogenbondsandπ–π,C-H···πstackinginteractions[9]isasuccessfulstrategyforpreparingcoordinationcompoundsandh
7、asbeenextensivelyused,resultingininfiniteframeworksofone,two,andthreedimensions[10].Preparationoffunctionalcrystallinesolidsdisplayingavarietyofwell-definedsupramoleculararchitecturesmediatedbysupramolecularinteraction
