分析化学
分析化學
분석화학
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2001年
5期
573-576
,共4页
马理%宋凤瑞%刘子阳%刘淑莹
馬理%宋鳳瑞%劉子暘%劉淑瑩
마리%송봉서%류자양%류숙형
电喷雾质谱%金属卟啉%金属卟啉与咪唑络合物
電噴霧質譜%金屬卟啉%金屬卟啉與咪唑絡閤物
전분무질보%금속계람%금속계람여미서락합물
利用电喷雾电离质谱(ESI-MS)研究了3种金属卟啉化合物(MTPP=MnTPP,FeTPP和CoTPP),探讨了在这些化合物中苯取代基与卟啉环间的键合能力以及金属卟啉与咪唑的配位情况。研究结果表明,金属卟啉的外围取代基苯基与卟啉环的键合能力按Mn、Fe和Co的次序变弱。金属卟啉与咪唑形成的络合物的离子丰度随配体浓度的增加而增强;在相同的配体浓度下,络合物的离子丰度按Mn、Fe和Co顺序依次增加,其中,CoTPP络合物的稳定性最强。
利用電噴霧電離質譜(ESI-MS)研究瞭3種金屬卟啉化閤物(MTPP=MnTPP,FeTPP和CoTPP),探討瞭在這些化閤物中苯取代基與卟啉環間的鍵閤能力以及金屬卟啉與咪唑的配位情況。研究結果錶明,金屬卟啉的外圍取代基苯基與卟啉環的鍵閤能力按Mn、Fe和Co的次序變弱。金屬卟啉與咪唑形成的絡閤物的離子豐度隨配體濃度的增加而增彊;在相同的配體濃度下,絡閤物的離子豐度按Mn、Fe和Co順序依次增加,其中,CoTPP絡閤物的穩定性最彊。
이용전분무전리질보(ESI-MS)연구료3충금속계람화합물(MTPP=MnTPP,FeTPP화CoTPP),탐토료재저사화합물중분취대기여계람배간적건합능력이급금속계람여미서적배위정황。연구결과표명,금속계람적외위취대기분기여계람배적건합능력안Mn、Fe화Co적차서변약。금속계람여미서형성적락합물적리자봉도수배체농도적증가이증강;재상동적배체농도하,락합물적리자봉도안Mn、Fe화Co순서의차증가,기중,CoTPP락합물적은정성최강。
Three compounds of metalloporphyrins were studied using electrospray ionization mass spectrometry.The bonding power between substitutional phenyl and porphyrin cycle and the coordinate conditions of metalloporphyrins with imidazole were disscused. The experimental result indicated that the bonding power between substitutional phenyl and porphyrin cycle in metalloporphyrins became weak from Mn,Fe to Co.The complexes abundances formed by metallophorphyrin with imidazole were stronger with the increase of the ligand concentration.At the same ligand concentration,the abundance of the complexes was intensified gradually and the stability of the ligands was become stronger from Mn,Fe to Co.