Light Response of Three Water-Soluble MnI PhotoCORMs: Spectroscopic Features and CO Release Investigation
作者:Vitor Weiss、André Amorim、Fernando Xavier、Adailton Bortoluzzi、Ademir Neves、Rosely Peralta
DOI:10.21577/0103-5053.20190183
日期:——
Currently, there is great interest in the study of water-soluble metal compounds capable of releasing carbon monoxide, due to their potential therapeutic use. This paper reports the synthesis, spectroscopic characteristics and CO release properties of three water-soluble manganese(I) carbonyl compounds [Mn(aaz)(CO)3]Br (1; where aaz = 6-amino-6-methylperhydro-1,4-diazepine), [Mn(Me2aaz)(CO)3]Br (2;
当前,由于其潜在的治疗用途,对能够释放一氧化碳的水溶性金属化合物的研究引起了极大的兴趣。本文报道了三种水溶性锰(I)羰基化合物[Mn(aaz)(CO)3] Br(1;其中aaz = 6-氨基-6-甲基过氢-1, 4-二氮杂)),[Mn(Me2aaz)(CO)3] Br(2;其中Me2aaz = 6-氨基-1,4,6-三甲基-1,4-二氮杂环庚烷)和[Mn(tacn)(CO)3 ] Br(3;其中tacn = 1,4,7-三氮杂环壬烷),可以用作photoCORM(CORM是释放一氧化碳的分子)。主要目的是提出一种释放二氧化碳的机制。化合物1-3当暴露于光线(λ385和λ410)时能够释放一氧化碳,因此可以用作photoCORM。在光释放过程中在385处确定了双羰基中间体的形成,并确定了量子产率和CO释放速率。提议的CO释放机理涉及两个步骤,即发生光和氧化还原过程,化合物1和2的机理与化合物