The photolysis of ethyl chloride at 121.6nm was studied over the pressure range 0.5-30 Torr at room temperature using a hydrogen atom resonance lamp. Pressure effect was investigated with and without $SF_6$. A scavenger effect of the reaction was also observed by adding NO gas. The major products of the reaction were $CH_4$, $C_2H_4$, $C_2H_6$, and $C_2H_2$. The branching between the elimination process and radical process are 0.68 to 0.32.
Collisional deactivation of vibrationally excited ethylene molecule from the photolysis was studied at pressure region with the presence of $CO_2$ and $SF_6$ as collisional partners. By observing the ratio of stabilization to decomposition(S/D) of ethylene, the comparision was made between the experimental result and the theoretical estimation. The RRKM calculation was used to analyze the experimental results quantitatively and the pressure dependence on product ratios was well explained by the calculation. The S/D of the theoretical estimation increased sharply with pressure, but that of experimental result slight increased with pressure. The discrepancy was well explained in terms of the competitive reaction to stabilization/decomposition of $C_2H_3Cl$ and energy distribution of hot ethylene.
121.6nm에 에틸 클로라이드의 광분해 반응을 수소 원자 공명 램프를 이용하여 0.5-30 Torr의 압력으로 실온에서 연구하였다. 압력에 대한 효과는 육불화황을 사용하여 조사하였으며, 스케빈저 효과는 NO 기체를 첨가하여 조사하였다. 반응의 주요 생성물은 메탄, 에틸렌, 에탄, 그리고 아세틸렌이다. 제거 과정은 68%이고 라디칼 과정은 32%이다.
광분해 결과 생긴 진동 여기된 에틸렌의 충돌 탈활성화는 충돌짝으로써 이산화탄소와 육불화황을 이용하여 연구되었다. 에틸렌과 아세틸렌의 비를 관찰하여 실험 결과와 이론값을 비교하였다. RRKM 계산은 양적으로 실험= 결과를 분석하는데 이용되었고 압력에 대한 생성물의 비는 이 계산에 의해 설명되었다. 계산 결과가 실험값보다 압력에 따라 크게 증가하였는데, 이 차이는 클로로 에틸렌의 경쟁 반응과 여기된 에틸렌의 에너지 분포로 설명되었다.
