摘要
摘要为了弄清二氟卡宾1CF2与1O3在单重态势能面上的微观反应机理,在B3LYP/6—311G(d,p)水平上对该反应作了详细的理论研究。优化了各反应物、中间体、过渡态和产物的几何构型,得到了相应的能量值,并在相同的水平上用内禀反应坐标(IRC)计算方法确认了过渡态和中间体之间的联系。研究得到1CF2+1O3反应的9种产物通道:P1(F2CO+1O2)、P2(FCO+FOO)、P3(C02+FOF)、P4(C02+FFO)、P5(CO3+F9、P6(v.C02+FOF)、P7(C02+F0+F)、Ps(CO+F200)Fe和Pg(CO+FOOF)。其中PI(F2CO+1O2)为最主要产物通道,P2(FCO+FOO)、P3(C02+FOF)和P4(C02+FFO)的产率依次减小,而其他通道对反应体系的产物贡献几乎可以忽略。
In order to clarify the microcosmic reaction mechanism of difluorocarbene (ICF2) with 103 on the singlet potential energy surface, a detailed theoretical study was carded out at the B3LYP/6-31 IG(d, p) level. The geometry configurations of reactants, intermediates, transition states and products were optimized and their energies were obtained. Intrinsic reaction coordinate (IRC) calculations at the same level were performed to confirm the connections between transition states and intermediates. It is found that the 1CF2+ 103 reaction possesses nine product channels: PI(F2CO + 102), P2(FCO + FOO), P3(CO2 + FOF), P4(CO2+ FFO), P5(CO3+ F2), P6(wCO2 + FOF), P7(CO2 + FO + F), Ps(CO + F2OO) and Pg(CO + FOOF). Among these product channels, P1 (F2CO + 102) is the most predominant, the rates of P2 (FCO + FOO), P3 (CO2 + FOF) and P4 (CO2 + FFO) decrease in sequence, while the other channels' contribution to the reaction products can be almost ignored.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2014年第2期217-222,共6页
Computers and Applied Chemistry
基金
湖北省教育厅科学技术研究计划重点项目(D20111105)
武汉科技大学绿色制造与节能减排科技研究中心开放基金(C1201)
湖北大学功能材料绿色制备与应用重点实验室开放基金(000-046034)资助