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Kỹ thuật hóa học

Trần Quốc Trị, Nguyễn Thị Minh Huệ, Nguyễn Văn Quyền(1)

Nghiên cứu lý thuyết sự hình thành C3H6, Xiclo.C3H6 và C3HN trong phản ứng giữa C2H với C3H7CN

Theoretical investigation on the formation of C3H6, cyclo- C3H6, and C3HN in the reaction of C2H with C3H7CN

Hóa học

2014

6

672-676

0866-7144

Mechanisms of the addition, elimination, and migration of ethynyl radical (C2H) with n-propylcyanua (C3H7CN) pave been studied by using Density-Functional Theory. The BHandHL YP functional was carried out with the 6311 ++G( d,p) and 6-311 ++G(3df,2p) basis sets. Geometry optimizations were performed with the former basis set while single-point calculations were done with the latter basis set in order to improve the energies. The relative energies were corrected with zero-point energy (ZPE). Based on the computational results, the authors constructed the potential energy surface for the reaction of C2H with C3H7CN. This potential energy surface, in combined with the thermodynamic quantities, allows predicting the high ability to form C3H6, C3HN, and cyclo-C3H6 in the title reaction. Particularly, the computational results show that the formation of product PR19 (C3H7 + HCCCN) is the most favorable channel of this reaction. These results are useful to understand the reactivity of ethynyl radical with n-propylcyanua and also with other nitrile derivatives.

TTKHCNQG, CVv 14