Mononuclear ruthenium-water oxidation catalysts: discerning between electronic and hydrogen-bonding effects.

Mononuclear ruthenium-water oxidation catalysts: discerning between electronic and hydrogen-bonding effects.
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单核钌-水氧化催化剂:区分电子和氢键效应。

DOI:
10.1021/ic3028176
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发表时间:
2013
影响因子:
4.6
通讯作者:
A. Llobet
A. Llobet
中科院分区:
化学2区
文献类型:
--
作者:
S. Maji;Isidoro López;Fernando Bozoglián;J. Benet‐Buchholz;A. Llobet

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通式[Ru(trpy)(n,n′-F2-bpy)X](m+) [n = n′= 5,X = Cl(3(+))和H2O(5(2+))的新单核配合物;n = n' = 6, X = Cl(4(+))和H2O (6(2+));合成了三吡啶[2,2':6':2"-三吡啶],并对其进行了表征。5,5‘和6,6’- f2 -bpy配体允许人们对钌金属中心施加远程电子扰动,从而影响催化循环中涉及的物质的组合。此外,6,6'-F2-bpy还允许通过氢相互作用与配合物的Ru-O部分通过空间相互作用,这也影响了催化循环中不同物质的稳定性。这两种效应的结合对催化过程的动力学有很强的影响,这是通过压力监测观察到的。
New mononuculear complexes of the general formula [Ru(trpy)(n,n'-F2-bpy)X](m+) [n = n' = 5, X = Cl (3(+)) and H2O (5(2+)); n = n' = 6, X = Cl (4(+)) and H2O (6(2+)); trpy is 2,2':6':2"-terpyridine] have been prepared and thoroughly characterized. The 5,5'- and 6,6'-F2-bpy ligands allow one to exert a remote electronic perturbation to the ruthenium metal center, which affects the combination of species involved in the catalytic cycle. Additionally, 6,6'-F2-bpy also allows through-space interaction with the Ru-O moiety of the complex via hydrogen interaction, which also affects the stability of the different species involved in the catalytic cycle. The combination of both effects has a strong impact on the kinetics of the catalytic process, as observed through manometric monitoring.
DOI: 10.1039/c2sc20399e
发表时间: 2012-07
期刊: Chemical Science
影响因子: 8.4
作者:
Laura Vigara;M. Z. Ertem;Nora Planas;Fernando Bozoglián;Nils Leidel;H. Dau;M. Haumann;L. Gagliardi;C. Cramer;A. Llobet
通讯作者: Laura Vigara;M. Z. Ertem;Nora Planas;Fernando Bozoglián;Nils Leidel;H. Dau;M. Haumann;L. Gagliardi;C. Cramer;A. Llobet