摘要三齿配体2,6-双(甲硫基甲基)吡啶(L)的酸常数及其Pd(II)和Cu(II)配合物[PdLTu] 2+和[CuL(H2O)] 2+的形成常数具有通过电位分光光度法和分光光度法在水溶液中测定。电位计测定的酸度常数为log K = 4.04±0.04(分光光度法为4.01±0.02),而Pd(II)和Cu(II)的形成常数为log K = 28.92±0.09和4.6±0.1(分别为4.41±0.04)。还报道了一些具有相同螯合基团的大孔聚苯乙烯-二乙烯基苯树脂对Pd(II)对Cu(II)的高选择性的初步结果。
Effects of halogen ligands of complexes supported by bis(methylthioether)pyridine on catalytic activities for electrochemical and photochemical driven hydrogen evolution
作者:Chun‐Li Wang、Hao Yang、Juan Du、Shu‐Zhong Zhan
DOI:10.1002/aoc.6201
日期:2021.6
Reactions of bis(methylthioether)pyridine (btep) with CuX2 (X = Br and Cl) form two new complexes, [Cu(btep)Br2] and [Cu(btep)Cl2], respectively, which have been determined by X‐ray crystallography. Both of them can serve as catalysts for electrochemical and photochemical driven hydrogen evolution. Under an overpotential (OP) of 837.6 mV, [Cu(btep)Br2] or [Cu(btep)Cl2] can electrocatalyze hydrogen
yridine (L) and formation constants of its Pd(II) and Cu(II) complexes [PdLTu]2+ and [CuL(H2O)]2+ have been determined in aqueoussolutions by potentiometric and spectrophotometric techniques. The acidity constant as determined by potentiometry is log K=4.04±0.04 (4.01±0.02 by spectrophotometry), whereas the formation constants for the Pd(II) and Cu(II) species are log K=28.92±0.09 and 4.6±0.1 (4.41±0
摘要三齿配体2,6-双(甲硫基甲基)吡啶(L)的酸常数及其Pd(II)和Cu(II)配合物[PdLTu] 2+和[CuL(H2O)] 2+的形成常数具有通过电位分光光度法和分光光度法在水溶液中测定。电位计测定的酸度常数为log K = 4.04±0.04(分光光度法为4.01±0.02),而Pd(II)和Cu(II)的形成常数为log K = 28.92±0.09和4.6±0.1(分别为4.41±0.04)。还报道了一些具有相同螯合基团的大孔聚苯乙烯-二乙烯基苯树脂对Pd(II)对Cu(II)的高选择性的初步结果。