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Half‐sandwich Ir (III) and Rh (III) complexes as catalysts for water oxidation with double‐site
Author(s) -
Li Peng,
Liu JinBao,
Han Sheng,
Deng Wei,
Yao ZiJian
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5040
Subject(s) - chemistry , iridium , rhodium , transition metal , catalysis , cyclic voltammetry , overpotential , imine , single crystal , proton nmr , carbon 13 nmr , methanol , crystal structure , inorganic chemistry , crystallography , nuclear chemistry , electrochemistry , stereochemistry , organic chemistry , electrode
A series of neutral binuclear iridium and rhodium complexes were synthesized based on bis ‐imine ligands under mild conditions. These half‐sandwich late transition metal complexes were isolated in good yields and characterized by elemental analysis, 1 H NMR, 13 C NMR, HR‐MS, and FT‐IR spectroscopies, and the solid state structure of complexes 1 and 2 were further confirmed by single‐crystal X‐ray diffraction. Cyclic voltammetry (CV) characterization indicated that the complex 1 has the best catalyst for water oxidation process with TOF of 0.8 s −1 at low overpotential of 0.325 V in methanol‐phosphate buffer. The proposed double‐site water oxidation mechanism had been also speculated .