Generation, Microwave Spectrum, andAb InitioMO Calculation oftrans-1-Nitrosopropene, CH3CHCH—NO (synform)
作者:Takeshi Sakaizumi、Hideki Tanaka、Kouji Hirano、Nobuhiko Kuze、Osamu Ohashi
DOI:10.1006/jmsp.1998.7774
日期:1999.3
roxyimino)ethane and identified by microwave spectroscopy. The microwave spectrum of the pyrolysate was observed in the frequency range from 8.0 to 40.0 GHz. The rotational constants (MHz) were determined as A = 34 025(390), B = 2315.62(2), and C = 2198.54(2) for CH 3 CH CH NO (normal species) and A = 34 012(530), B = 2300.04(3), and C = 2182.70(2) for CH 3 CH CH 15 NO ( 15 N isotopic species) in the
摘要 1-氯-1-甲基-2-(羟基亚氨基)乙烷在气相中热解生成反式-1-亚硝基丙烯(syn form),并通过微波光谱进行鉴定。在 8.0 至 40.0 GHz 的频率范围内观察到热解产物的微波光谱。旋转常数 (MHz) 确定为 A = 34 025(390)、B = 2315.62(2) 和 C = 2198.54(2) 对于 CH 3 CH CH NO (正常物种) 和 A = 34 012(530), B = 2300.04(3) 和 C = 2182.70(2) 对于处于地面振动状态的 CH 3 CH CH 15 NO( 15 N 同位素物种)。发现为正常和 15 N 同位素物种获得的平面矩值 ( P cc = ( I a + I b - I c )/2) 分别为 1.62(10) 和 1.52(13) uA 2 。这些值在误差范围内几乎相同。这表明氮原子位于或接近分子的 ab 惯