MICROWAVE-SPECTRUM OF TRANS-NITROSOETHYLENE-N-15 AND PYROLYSIS MECHANISM OF CHLOROACETALDEHYDE OXIME

被引：28
作者：
SAKAIZUMI, T
NISHIKAWA, M
OHASHI, O
机构：
[1] Department of Chemistry, Faculty of Science and Technology, Sophia University, Tokyo, 102, 7-1, Kioi-cho, Chiyoda-ku
来源：
JOURNAL OF MOLECULAR SPECTROSCOPY | 1995年 / 171卷 / 02期
关键词：
D O I：
10.1006/jmsp.1995.1138
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The microwave spectrum of trans-nitrosoethylene-N-15 (nitrosoethene) generated by pyrolysis of chloroacetaldehyde oxime-N-15 has been observed in the frequency range from 8.0 to 40.0 GHz. The relational constants of the N-15 species are determined to be A = 50390(201), B = 5057.00(3), and C = 4605.29(3) MHz. The r(s)-coordinates (a and b) of the nitrogen atom of trans-nitrosoethylene are determined to be 0.540(1) and 0.453 Angstrom, respectively. The three r(0) structural parameters were fitted to four rotational constants (B and C) of the normal and N-15 species. The bond length of r(C-N) and two bond angles of[C] = C-N and < C-N = O obtained are 1.439(10) Angstrom, 117.1(10)degrees, and 112.7(10)degrees, respectively. The possible pyrolysis mechanism of chloroacetaldehyde oxime was discussed on the basis of detecting the three pyrolysates (CH2 = CH-(NO)-N-15, (HCN)-N-15, and CH2 = O) by microwave spectroscopy. (C) 1995 Academic Press,Inc.
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页码：518 / 524
页数：7
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