紫外滴定法测定主客体包结常数

*29610065*Email:[e-mail]-B[5]DEP55ml500L110-3MPY-BCHCl35ml2mL110-5MPY-BPY-BPY-BDEP51105M-11Fig.1Thenon-linearcurve-fitting(UV-Vistitrations)forthecomplexationofDEP5hostwithPy-B(4.110-5M)inCHCl3at298K[1]a)C.YangandY.Inoue,Chem.Soc.Rev.2014,DOI:10.1039/C3CS60339C;b)YaoJ.,YanZ.,JiJ.,WuW.,YangC.,NishijimaM.,FukuharaG.,MoriT.,andInoueY.,J.Am.Chem.Soc.,2014,136:6916–6919DeterminationofBindingConstantbyUV-visTitrationXinSu,WanhuaWu,ChengYang*CollegeofChemistry,SichuanUniversity,29WangjiangRoad,Chengdu610064UVtitrationisafrequently-usedtitrimetricmethodfordeterminationofbindingconstantsofhost-guestcomplexation.Herein,Thebindingconstantsbetweenperylenederivativesandpillar[5]areneweremeasuredusingtheUVtitrationtechnology.Themainprocedureisasfollows:ACHCl3solutionofpillar[5]arene(containing4.110-5MPY-B)wasgraduallyaddedtothesolutionofPY-B(4.110-5M),thechangesoftheabsorptionofPY-Buponincreasingtheconcentrationofpillar[5]arenewererecordedbyaUV-visspectrophotometer.Thisprojectbroadenedourknowledge,andourexperimentabilitywaswelltrained.0.05.0x10-51.0x10-41.5x10-40.000.050.100.150.200.25Ka=104371M-1A[H]5OCH2CH3H3CH2CO[5]