Jie He, Bo Han, Chensheng Xian, Zhao Hu, Tingfeng Fang, Zehui Zhang, Hydrogen-Bond-Mediated Formation of C-N or C=N Bond during Photocatalytic Reductive Coupling Reaction over CdS Nanosheets, Angewandte Chemie Inter...
机理研究研究结果验证,光化学产生低价态的镍(异腈)配合物,这些配合物经历C(sp3)-N键的光化学均裂,随后与炔烃发生催化氰化反应。 Jian Qin, Yingying Li, Yuntong Hu, Zhonghou Huang, Weihang Miao, and Lingling Chu*, Photoinduced Nick...
These derivatives were characterized by Raman spectroscopy, Fourier transform infrared (FTIR), thermo gravimetric analysis (TGA), scanning electron microscopy (SEM), x-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and atomic force microscopy (AFM). Compared to fluorinated ...
邹雨芹/王双印团队开发出e-ODCu电催化剂实现了乌洛托品的高效电催化合成。采用原位SR-FTIR和原位XAS解析出在e-OD-Cu上的偶联反应途径是串联的“电化学−化学”过程,且在整个偶联反应过程中都存在Cu空位。进一步利用DFT计算和OCP测试证实了Cu空位增强了硝酸盐和甲醛的吸附,减缓了*CH2=NH的加氢反应。总之,该工作为...
合物,产物经1H-NMR、”C-NMR、FTIR、ESI.MS、HRMS等手段表征分析和验证。 关键词:催化多功能性,酰化酶,Michael加成,氮杂环化合物,串联反应。 Ⅱ ABSTRACT Enzymes hadbeenmoreandmore widely usedin organicchemistry.Enzymatic synthesis in organic mediahas ...
When further increasing the Pd loading from 0.02 to 0.5 mg cm−2on Au modified Si electrode, the C-C bond cleavage happened at a much lower potential of 0.2 VRHE(Supplementary Fig.42a), and this characteristic CO peak was found at a wide potential of 0.2-0.9 VRHEdue to the ...
FTIR analysis was performed to confirm the successful formation of MPC and MPC@TMG. The FTIR spectrum of MPC showed three prominent bands at 1552 cm−1, 1480 cm−1, and 1351 cm−1 corresponding to the quadrant, semicircle, and C–N stretching of the triazine moiety respectively, which...
iridium;C-N bond formation;metalloradical;coordinatively unsaturated;catalysis 1. Introduction It is well known that metal radicals and coordinatively unsaturated species play important roles in various fields, including energy transfer in biological systems, pharmaceutical research, and synthetic chemistry [...
SEM, FTIR, XPS, XRD, and so on were used to characterize the surface structure, morphology, and chemical composition of iron-based carbon materials. The Cr(VI) adsorption on FCN-x was examined as a function of pH, initial adsorbent concentration, equilibrium time, and adsorbate loadings. ...
Moreover, the MWCNTs/CC-SH/Pd heterogeneous nanocatalyst was evaluated using the Buchwald-Hartwig cross coupling reaction, which is a CN bond formation reaction of aryl halides with amines (Scheme 2). First, bromobenzene with morpholine in the existence of MWCNTs/CC-SH/Pd catalyst at 100 °...