Dual oxidase/oxygenase reactivity and resonance Raman spectra of {Cu<sub>3</sub>O<sub>2</sub>} moiety with perfluoro-<i>t</i>-butoxide ligands
作者:Sarah E. N. Brazeau、Emily E. Norwine、Steven F. Hannigan、Nicole Orth、Ivana Ivanović-Burmazović、Dieter Rukser、Florian Biebl、Benjamin Grimm-Lebsanft、Gregor Praedel、Melissa Teubner、Michael Rübhausen、Patricia Liebhäuser、Thomas Rösener、Julia Stanek、Alexander Hoffmann、Sonja Herres-Pawlis、Linda H. Doerrer
DOI:10.1039/c9dt00516a
日期:——
4-di-tert-butylphenolate (DBP) to catecholate, making TOC4F9 the first trinuclear species to perform tyrosinase (both monooxygenase and oxidase) chemistry. Resonance Raman spectra were also obtained for TOC4F9, to our knowledge, the first such spectra for any T species. The mechanism and substrate reactivity of TOC4F9 are compared to those of its bidentate counterpart, TpinF, formed from K[Cu(pinF)(PR3)]
甲的Cu(我)完全氟化的O-供单齿醇盐复合物,K [铜(OC 4 ˚F 9)2 ],先前显示,以形成具有三核铜-双氧物种的Cu 3(μ 3 -O)2 }在低温下与O 2反应时,其核心为T OC 4 F 9。本文报道了使用停止流光谱学对T OC 4 F 9形成的动力学和机理的显着扩展。所述Ť OC 4 ˚F 9该配合物执行对苯二酚(H 2 Q)到苯醌(Q)的催化氧化酶转化。T OC 4 F 9还证明了2,4-二叔丁基苯酚盐(DBP)的羟基化为儿茶酚酸,使T OC 4 F 9成为第一个进行酪氨酸酶(单加氧酶和氧化酶)化学反应的三核物质。据我们所知,还获得了T OC 4 F 9的共振拉曼光谱,这是任何T物种的第一个此类光谱。T OC 4 F 9的作用机理与底物反应性将其与由K [Cu(pin F)(PR 3)]形成的双齿T销F进行比较。单齿衍生物具有更快的初始形成和更多样化的底物反应性。