Based on the many-atom interaction model and valence bond theory of metals, a new potential function for the interaction among atoms in solid is proposed in the present work. Because the reduced bond length is taken a...Based on the many-atom interaction model and valence bond theory of metals, a new potential function for the interaction among atoms in solid is proposed in the present work. Because the reduced bond length is taken as variable, the new potential function can be simplified to have the form analogous to the Lennard-Jones potential. Accoroding to Debye model, a series of equations for calculating various elasticities and constants K and Q in Gruneisen equation have been derived from the new potential function. The application of the new potential function to Ni, Cu and five alkli metals shows that these equations are correct.展开更多
Organic electrochemistry has a rich history in organic synthesis and has been considered as a promising alternative to traditional chemical oxidants and reductants because it obviates the use of stoichiometric amount ...Organic electrochemistry has a rich history in organic synthesis and has been considered as a promising alternative to traditional chemical oxidants and reductants because it obviates the use of stoichiometric amount of dangerous and toxic reagents. In particular, the electrochemical C-H bonds functionalization is one of the most desirable approaches for the construction of carbon-carbon （C-C） and carbon-heteroatom （C-X） bonds. This review summarizes the substantial progress made in the last few years in C-H functionalization via organic electrochemistry. It is divided into sections on C-C, C-N, C-O, C-S, C-Halogen and C-P bond formation.展开更多
基金Project supported by the Science Foundation of China National Nonferrous Metals Industry Corporation
文摘Based on the many-atom interaction model and valence bond theory of metals, a new potential function for the interaction among atoms in solid is proposed in the present work. Because the reduced bond length is taken as variable, the new potential function can be simplified to have the form analogous to the Lennard-Jones potential. Accoroding to Debye model, a series of equations for calculating various elasticities and constants K and Q in Gruneisen equation have been derived from the new potential function. The application of the new potential function to Ni, Cu and five alkli metals shows that these equations are correct.
文摘Organic electrochemistry has a rich history in organic synthesis and has been considered as a promising alternative to traditional chemical oxidants and reductants because it obviates the use of stoichiometric amount of dangerous and toxic reagents. In particular, the electrochemical C-H bonds functionalization is one of the most desirable approaches for the construction of carbon-carbon （C-C） and carbon-heteroatom （C-X） bonds. This review summarizes the substantial progress made in the last few years in C-H functionalization via organic electrochemistry. It is divided into sections on C-C, C-N, C-O, C-S, C-Halogen and C-P bond formation.
