electron transfer
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2022 ◽  
Vol 304 ◽  
pp. 120983
Author(s):  
Yidong Han ◽  
Jie Wu ◽  
Yi Li ◽  
Xiaoqing Gu ◽  
Tiwei He ◽  
...  

Geoderma ◽  
2022 ◽  
Vol 408 ◽  
pp. 115580
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Duyen Minh Pham ◽  
Hiroshi Oji ◽  
Shinya Yagi ◽  
Satoshi Ogawa ◽  
Arata Katayama

2022 ◽  
Vol 429 ◽  
pp. 132374
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Xiangwei Zhang ◽  
Yangyu Liu ◽  
Chunquan Li ◽  
Long Tian ◽  
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2022 ◽  
Vol 429 ◽  
pp. 132223
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Jiayu Gu ◽  
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2022 ◽  
Vol 423 ◽  
pp. 127134
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Lv Chen ◽  
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Junjiang Zhu ◽  
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2022 ◽  
Author(s):  
Riddhi Golwankar ◽  
Amit Kumar ◽  
Victor Day ◽  
James Blakemore

Incorporation of redox-inactive metals into redox-active complexes and catalysts attracts attention for engendering new reactivity modes, but this strategy has not been extensively investigated beyond the first-row of the transition metals. Here, the isolation and characterization of the first series of heterobimetallic complexes of palladium with mono-, di-, and tri-valent redox-inactive metal ions are reported. A Reinhoudt-type heteroditopic ligand with a salen-derived [N2,O2] binding site for Pd and a crown-ether-derived [O6] site has been used to prepare isolable adducts of the Lewis acidic redox-inactive metal ions (Mn+). Comprehensive data from single-crystal X-ray diffraction analysis reveal distinctive trends in the structural properties of the heterobimetallic species, including an uncommon dependence of the Pd•••M distance on Lewis acidity. The reorganization energy associated with reduction of the heterobimetallic species is strongly modulated by Lewis acidity, with the slowest heterogeneous electron transfer kinetics associated with the strongest incorporated Lewis acids. This hitherto unexplored reorganization energy penalty for electron transfer contrasts with prior thermodynamic studies, revealing that kinetic parameters should be considered in studies of reactivity involving heterobimetallic species.


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