Table3
表 3 利用B3LYP/6-311++G(d, p)和CBS-QB3理论计算获得的C10H18分解的键解离能
Reaction | △H of C−C bond disociations/(kJ·mol−1) | Reaction | △H of C−H bond disociations/(kJ·mol−1) | ||||
B3LYP/6-311++g(d,p) | CBS-QB3 | difference | B3LYP/6-311++g(d,p) | CBS-QB3 | difference | ||
C10H18→BR1 | 324 | 328 | −4 | C10H18→R1 | 388 | 390 | −2 |
C10H18→BR2 | 326 | 329 | −3 | C10H18→R2 | 391 | 393 | −2 |
C10H18→BR3 | 282 | 285 | −3 | C10H18→R3 | 391 | 393 | −2 |
C10H18→BR4 | 282 | 285 | −3 | C10H18→R4 | 389 | 391 | −2 |
C10H18→BR5 | 319 | 322 | −3 | C10H18→R5 | 390 | 392 | −2 |
C10H18→BR6 | 322 | 326 | −4 |
Table2
表 2 利用B3LYP/6-311++G(d, p)和高精度CBS-QB3理论计算获得的C10H18和C12H22的几何结构参数
Geometrical parameter | QC | NBD | |||
B3LYP/6-311++g(d,p) | CBS-QB3 | B3LYP/6-311++g(d,p) | CBS-QB3 | ||
r(C1−C2)/Å | 1.549 | 1.550 | 1.555 | 1.555 | |
r(C2−C3)/Å | 1.533 | 1.533 | 1.535 | 1.535 | |
r(C3−C4)/Å | 1.547 | 1.547 | 1.534 | 1.534 | |
r(C4−C5)/Å | 1.545 | 1.545 | 1.534 | 1.533 | |
r(C5−C6)/Å | 1.533 | 1.533 | 1.538 | 1.538 | |
r(C6−C1)/Å | 1.560 | 1.560 | 1.554 | 1.553 | |
r(C1−C7)/Å | 1.548 | 1.547 | 1.554 | 1.554 | |
r(C7−C8)/Å | 1.541 | 1.541 | 1.541 | 1.541 | |
r(C8−C9)/Å | 1.556 | 1.557 | 1.540 | 1.540 | |
r(C9−C10)/Å | 1.550 | 1.550 | 1.542 | 1.542 | |
r(C10−C1)/Å | 1.549 | 1.549 | − | − | |
r(C10−C11)/Å | − | − | 1.538 | 1.538 | |
r(C11−C12)/Å | − | − | 1.540 | 1.541 | |
r(C12−C1)/Å | − | − | 1.551 | 1.551 | |
θ(C2−C1−C6)/(°) | 109.9 | 109.9 | 107.9 | 108.0 | |
θ(C10−C1−C7)/(°) | 101.0 | 100.9 | − | − | |
θ(C12−C1−C7)/(°) | − | − | 111.9 | 111.9 | |
θ(C7−C1−C2−C6)/(°) | 123.6 | 123.7 | 118.2 | 118.2 | |
θ(C10−C1−C2−C6)/(°) | 123.8 | 123.8 | − | − | |
θ(C12−C1−C2−C6)/(°) | − | − | 120.8 | 120.9 |
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会