CAJ | 학술논문

本文合成了2种含有烟酸分子修饰的自由卟啉p-(niacin)C2O-TPP和o-(niacin)C2O-TPP及其锌配合物p-(niacin)C2O-TPPZn 和o-(niacin)C2O-TPPZn.通过元素分析、紫外-可见光谱、核磁共振氢谱、红外光谱、荧光光谱等多种谱图对结构进行了表征,并结合理论计算搜索了锌卟啉的最低能量构象.同时,利用荧光光谱滴定法测定了这两种金属锌卟啉与咪唑类客体进行轴向配位反应的光谱性质.实验结果表明,(1)金属卟啉p-(niacin)C2O-TPPZn和o-(niacin)C2O-TPPZn中尾式侧链的不同位置对发色团卟啉环的电子云分布造成了不同程度的影响.在溶液中o-(niacin)C2O-TPPZn尾式侧链中的吡啶环与卟啉环之间存在Zn-N问的配位作用;(2)2种锌卟啉与咪唑类客体形成的轴配体系均具有荧光猝灭的性质.
본문합성료2충함유연산분자수식적자유계람p-(niacin)C2O-TPP화o-(niacin)C2O-TPP급기자배합물p-(niacin)C2O-TPPZn 화o-(niacin)C2O-TPPZn.통과원소분석、자외-가견광보、핵자공진경보、홍외광보、형광광보등다충보도대결구진행료표정,병결합이론계산수색료자계람적최저능량구상.동시,이용형광광보적정법측정료저량충금속자계람여미서류객체진행축향배위반응적광보성질.실험결과표명,(1)금속계람p-(niacin)C2O-TPPZn화o-(niacin)C2O-TPPZn중미식측련적불동위치대발색단계람배적전자운분포조성료불동정도적영향.재용액중o-(niacin)C2O-TPPZn미식측련중적필정배여계람배지간존재Zn-N문적배위작용;(2)2충자계람여미서류객체형성적축배체계균구유형광졸멸적성질.
Two kinds of porphyrins[P-(niacin)C2O-TPP,o-(niacin)C2O-TPP]and p-(niacin)C2O-TPPZn,o-(niacin)C2O -TPPZn modified with nicotinic acid were designed,synthesized and characterized by elementary analysis,UV-Vis,1H NMR,IR and fluorescence spectrum,the conformations of Zn porphyrins were sought by theoretical calculation method.And then.the fluorescence properties of axial coordination reaction were studied by megns of fluorescence spectrum between two kinds of Zn porphyrias and imidazoles derivatives.The experimental results showed:(1) it was found that there was different effect on electron distributing in porphyrin ring because of the change of position of the side chain in P-(niacin)C2O-TPPZn and o-(niacin)C2O-TPPZn,the Zn-N axial coordination interaction existed between the pyndine ring in side chain and porphyrin plane of the o-(niacin)C2O-TPPZn in solution; (2)the fluorescence quenching was exhibited in the system of axial coordination reaction between Zn porphyrias and imidazoles derivatives.