C. In this complex, the bite ligand is a macrocyclic N(2)S(2) ligand with a 2,2'-biphenyl moiety as its backbone. The reaction of [Cu(II)(bite)](2+) with [Ru(hfac)(3)](-) produces [Cu(I)(bite)](+) and [Ru(hfac)(3)] reversibly with K = 1.9. The rate law is second order in both directions, with a rate constant of (8.22 +/- 0.27) x 10(2) M(-1) s(-1) in the forward direction. Rate constants were also obtained
已在
乙腈中于25摄氏度下研究了涉及[Cu(bite)](2 + / +)氧化还原对的一系列外球交叉电子转移反应。在该络合物中,叮咬
配体为大环N( 2)S(2)
配体,以2,2'-
联苯部分为骨架。[Cu(II)(bite)](2+)与[Ru(hfac)(3)](-)的反应产生[Cu(I)(bite)](+)和[Ru(hfac)(3 )]可逆,且K = 1.9。速率定律在两个方向上都是二阶的,前向的速率常数为(8.22 +/- 0.27)x 10(2)M(-1)s(-1)。还获得了三种Co(II)笼形螯合物与[Cu(bit)](2+)的不可逆反应的速率常数。研究了[Fe(bpy)(3)](3+)对[Cu(bite)](+)的氧化,以获得氧化和还原的速率常数。将Marcus交叉关系应用于这些速率常数可以得出明显的自交换速率常数,该常数合理地一致,但异常地低,平均值为1.0 x 10(-2)M(-1