RELATIVE METAL HYDROGEN, METAL OXYGEN, METAL NITROGEN, AND METAL-CARBON BOND STRENGTHS FOR ORGANORUTHENIUM AND ORGANOPLATINUM COMPOUNDS - EQUILIBRIUM STUDIES OF CPSTAR(PME3)2RUX AND (DPPE)MEPTX SYSTEMS
RELATIVE METAL HYDROGEN, METAL OXYGEN, METAL NITROGEN, AND METAL-CARBON BOND STRENGTHS FOR ORGANORUTHENIUM AND ORGANOPLATINUM COMPOUNDS - EQUILIBRIUM STUDIES OF CPSTAR(PME3)2RUX AND (DPPE)MEPTX SYSTEMS
复制标题
DOI：
10.1021/ja00239a026
复制
发表时间：
1987-03-04
影响因子：
15
通讯作者：
BERCAW, JE
中科院分区：
文献类型：
--
作者：
BRYNDZA, HE;FONG, LK;BERCAW, JE
Cp*(PMe3)2RuNPh2。平衡常数可以确定每个系列化合物的相对 MX、MY 键解离能 (BDE)。对于两个不同的金属中心，发现了 L „MX 到 HX BDE 的线性相关性。讨论了这种相关性对其他系统的普遍性和预测价值。尽管广泛使用有机金属催化剂来实现均相有机转化，但对构成催化循环的各个步骤的热化学知之甚少。最近的进展已经得出了一些金属-氢和金属-碳键强度的值，3 但控制过渡金属-杂原子键反应性的因素(MX: X= OH,
Cp*(PMe3) 2RuNPh2. The equilibrium constants allow for the determination of relative MX, MY bond dissociation energies (BDEs) for each series of compounds. A linear correlationof L „MX to HX BDEs is found for the two dissimilar metal centers. The generality to other systems and predictive value of this correlation are discussed.Despite the widespread use of organometallic catalyststo effect homogeneous organic transformations, little is known about the thermochemistry of individual steps comprising catalytic cycles. Recent advances have led to values for some metal-hydrogen and metal-carbon bond strengths, 3 but the factors governing the re-activity of transition metal-heteroatom bonds (MX: X= OH,