CAJ | 학술논문

合成了两类新型的单尾卟啉-5-(4-(ω-(1-金刚胺基)烷氧基)苯基)-10,15,20-三苯基钴/镍卟啉(CoPCnA,NiPCnA)做为电子给体,并用荧光光谱研究这两类化合物与作为电子受体的环糊精衍生物单-6-氧-(对硝基苯甲酰基)-环糊精(NBCD)在水溶液中的相互作用.观察到由光诱导电子转移反应引起的荧光淬灭,表明所合成的卟啉衍生物和NBCD组成稳定的超分子体系,并测定了详细的动力学淬灭常数和包合常数.
합성료량류신형적단미계람-5-(4-(ω-(1-금강알기)완양기)분기)-10,15,20-삼분기고/얼계람(CoPCnA,NiPCnA)주위전자급체,병용형광광보연구저량류화합물여작위전자수체적배호정연생물단-6-양-(대초기분갑선기)-배호정(NBCD)재수용액중적상호작용.관찰도유광유도전자전이반응인기적형광쉬멸,표명소합성적계람연생물화NBCD조성은정적초분자체계,병측정료상세적동역학쉬멸상수화포합상수.
Two series monotailed porphyrins, Cobalt-5-{4-[ω-(1-adamantaneamino) alkyloxy]phenyl}-10,15,20-triphenyl porphyrinate (CoPCnA, n=4,5,6) anj Nickel-5-{4-[ω-(1-adamantaneamino)alkyloxy]phenyl}-10,15,20-triphenyl porphyrinate (NiPCnA, n=4,5,6), were synthesized, in which the porphyrin moiety was connected to 1-adamantanamine via a flexible hydrocarbon chain. The fluorescence quenching between these donor substrates and mono-6-p-nitrobenzoyl-β-cyclodextrin (NBCD) was studied in detail. Distinct fluorescence quenching occured in these supramolecular systems. This quenching was attributed to the photoinduced electron transfer (PET) inside the supramolecular assembly between the porphyrin donors and cyclodextrin acceptors. Detailed Stern-Volmer constants were measured and they were partitioned into dynamic SternVolmer quenching constants and static binding constants. It was demonstrated that the PET interaction between the porphyrin subunits and NBCD is indeed effective.