可逆熱色性席夫堿化合物的合成及熱色性能的研究.pdf

1、華中師范大學(xué)碩士學(xué)位論文可逆熱色性席夫堿化合物的合成及熱色性能的研究姓名：徐漢紅申請學(xué)位級(jí)別：碩士專業(yè)：有機(jī)化學(xué)指導(dǎo)教師：朱傳方2000.5.1AbstractThemainworkofthisthesisincludesthefollowingthreepartsI五e(cuò)fwstpart玨edevelopmentoftherevelsiblethermochromiccompoundswereviewedThemainclassific

2、ations，memechanismandtheapplicationofthermochromicSchiffbaseswereintroducedindetailbasedOilthereferencesandmaterialsaboutthistopicsBasedonmanyreferenceswechOOSetosynthesizefourseriescompoundsasanilsof24dihydroxyacetophen

3、one(I)，sulfc’namideSchiffbases(II)，PP’diaminodiphenylmethane—Sch酊bases(111)paminoazobenzene—Sehifrbases(IV)accordingtotheassumptionthattheobjectivecompoundsmusthavereversiblethermoehromism，hi曲ertransitiontemperatureandbe

4、easytosynthesizeThesecondpart：Theintermediateof24dihydroxyaceto—phenonesulphbnamide，P，P’diaminodiphenylmethanepaminoazobenzeneweresynthesizedrespectivelyKctoanilsweresynthesizedbytheimprovedmethodusingnbutanolassolventTh

5、eothercomplexeswerepreparedbythecommonmethodTheobjectivecompoundswerecharacterizedbythemeansofmP、elementalanalysis、MS、IR、UVand。HNMRspectroscopyT1lethirdpart：Weobserveddirectlythethermoehromicphenomenaofallcompoundsafterh

6、eatedbyeyesBasedonmanyexperimentaldatesobtmnedfrominvestigatingtheDSCofmostthermochromiccompounds，weanMyze。systemicallythespecificationoftheirthermaldecomposition，findtherelationbetweenthe△H(△S)ofthepeaksofmeltingandther

7、mocolourpointsandthestructureofsomecompoundsThethermochromicmechanismofketoenoltautomerismofsalicyaldehydeSehiffbaseswasprovedbydetermining13CNMRofsomethermochromiccompoundsThemaximumresonancebalancewasassignedfornonsali