引用本文:
陈从香, 朱梦霞, 王利, 邹建宏. CS2和O(3P)及N(4S)原子化学反应动力学[J]. 物理化学学报,
1992, 8(02): 226-231.
doi:
10.3866/PKU.WHXB19920216
Citation: Chen Cong-Xiang, Zhu Meng-Xia, Wang Li, Zou Jian-Hong. The Kinetics for Reactions of CS2 with O(3P) and N(4S) Atoms[J]. Acta Physico-Chimica Sinica, 1992, 8(02): 226-231. doi: 10.3866/PKU.WHXB19920216
Citation: Chen Cong-Xiang, Zhu Meng-Xia, Wang Li, Zou Jian-Hong. The Kinetics for Reactions of CS2 with O(3P) and N(4S) Atoms[J]. Acta Physico-Chimica Sinica, 1992, 8(02): 226-231. doi: 10.3866/PKU.WHXB19920216
CS2和O(3P)及N(4S)原子化学反应动力学
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关键词:
- 动力学; 氧原子; 氮原子; CS2分子
English
The Kinetics for Reactions of CS2 with O(3P) and N(4S) Atoms
Abstract:
In this work, we have measured the second-order rate constants of the reactions O(~3P)+CS_2 and N(~4S)+CS_2 over temperature range 293-500 K using discharge flow-chemiluminescence method. The results obtained are as follows: k_1=(8.44_(-0.61)~(+0.66))×10~(-11)exp ((-2.1±0. 1)×4.184 kJ·mol~(-1)/RT) cm~3·molec~(-1). s~(-1) (for O(~3P) + CS_2) and k_2=(3.09_(0.80)~(+1.08))×10~(-11) exp((-1.87±0.22)×4.184 kJ·mol~(-1)/RT)cm~3·molec~(-1)·s~(-1)(for N(~4S)+CS_2), respectively. The value of k_1 is in od agreement with literature results. With our best knowledge, no value of k_2 has been reported. In addition, we have calculated the structural parameters and energies of the intermediates NCS_2 and NSCS of the reaction N(~4S)+CS_2 by using approximate quantum chemistry theory. The minimum potential energy curves via reaction coordinates have also been calculated. A discussion of the reaction mechanism is presented.
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