Ligand‐Assisted Electrochemical CO2 Reduction by Ru‐Polypyridyl Complexes,European Journal of Inorganic Chemistry

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Ligand‐Assisted Electrochemical CO2 Reduction by Ru‐Polypyridyl Complexes
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-05-05 , DOI: 10.1002/ejic.202000259
Debashis Ghosh ₁ , Takashi Kajiwara ₂ , Susumu Kitagawa ₂ , Koji Tanaka ₂

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The introduction of a simple triazole moiety on a terpyridine ligand in the complex [Ru(tpy)(bpy)(Cl)]⁺ ([1]⁺; tpy = 2,2':6',2''‐terpyridine; bpy = 2,2'‐bipyridine) gives rise to a suitable electrocatalyst for the reduction of CO₂ to CO. The triazole group in [Ru(tpyaz)(bpy)(Cl)]⁺ {[2]⁺; tpyaz = 4'‐[4‐(tert‐butylphenyl)‐1H‐1,2,3‐triazol‐4‐yl]‐2,2':6',2''‐terpyridine} enables the complex [2]⁺ to bind with CO₂ even at the one‐electron reduced state of the complex. Further 2^nd‐electron addition after CO₂‐coordination to the catalyst facilitates efficient CO₂ reduction, based on cyclic voltammetry analysis.

中文翻译：

钌-吡啶基配合物的配体辅助电化学还原二氧化碳

在[Ru（tpy）（bpy）（Cl）] ⁺（[[ 1 ] ⁺ ; tpy = 2,2'：6'，2''-terpyridine; bpy中的三联吡啶配体上引入一个简单的三唑部分= 2,2'-联吡啶）产生了一种适合的用于将CO ₂还原为CO的电催化剂。[Ru（tpyaz）（bpy）（Cl）] ⁺ {[ 2 ] ^+中的三唑基；tpyaz = 4'-[4-（叔丁基苯基）-1 H -1,2,3-三唑-4-基] -2,2'：6'，2''-叔吡啶}使络合物[ 2 ] ⁺甚至在复合物的单电子还原态也能与CO ₂结合。另外2^次π电子加成后CO基于循环伏安分析，与催化剂进行_2位配位有助于有效地减少CO ₂。

更新日期：2020-05-05

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