化学
加合物
循环伏安法
电化学
药物化学
金属
配体(生物化学)
氧化还原
镓
单晶
玻璃碳
无机化学
结晶学
有机化学
电极
物理化学
受体
生物化学
作者
Jessica A. Bruggen,Keyton D. Feller,Henry I. Schickel,Nazym Tuleushova,Medet Zhukush,Kevin Lam,Brian M. Barry,Richard A. Kemp
出处
期刊:Main Group Chemistry
[IOS Press]
日期:2017-12-06
卷期号:16 (4): 307-319
摘要
A series of Group 13 complexes MLX2 (M = Al or Ga, L = SC6H4-2-PtBu2 or OC6H4-2-PtBu2, X = Me or C6F5) have been synthesized and characterized by multinuclear NMR spectroscopy and single crystal X-ray diffraction. Reactions of Me3Al or Me3Ga with an equivalent of either 2-tBu2P(C6H4)OH (1) or 2-tBu 2P(C6H4)SH (5) resulted in the formation of four new (2,3,6, and 7), 4-coordinate dimethyl chelate (S,P or O,P) complexes via methane elimination. The dimethyl gallium complexes (3 and 7) underwent a further reaction with excess B(C6F5)3, and through ligand exchange (methyl/pentafluorophenyl), resulted in the disubstituted bis(pentafluorophenyl) analogs (4 and 8). Cyclic voltammetry (CV) experiments for all compounds in the presence of and the absence of (1–8) CO2 were performed. For compounds showing cathodic reduction waves under CO2 (2,3,4, and 6), bulk electrolysis experiments were performed. Electrochemical studies indicate that, for several compounds, a transient CO2 adduct is formed which undergoes a one-electron, irreversible (or partially irreversible) reduction to form an unstable radical anion.
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