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内蒙古自治区呼和浩特市赛罕区大学西街235号 邮编: 010021
作者机构:CNR IST SPETTROSCOPIA MOLEC I-40126 BOLOGNA ITALY NATL UNIV LA PLATA DEPT FIS RA-1900 LA PLATA ARGENTINA UNIV BOLOGNA DIPARTIMENTO CHIM G CIAMICIAN I-40136 BOLOGNA ITALY
出 版 物:《JOURNAL OF MOLECULAR SPECTROSCOPY》 (分子光谱学杂志)
年 卷 期:1988年第131卷第1期
页 面:154-160页
核心收录:
学科分类:070207[理学-光学] 07[理学] 08[工学] 0703[理学-化学] 0803[工学-光学工程] 0702[理学-物理学]
摘 要:The microwave spectrum of C 4 O 2 Cl 2 (1,2-dichlorocyclobuten-3,4-dione) has been investigated for both the C 4 O 2 35 Cl 2 and the C 4 O 2 35 Cl 37 Cl isotopomers. The spectrum of the latter has been studied in greater detail because a number of μ b rotational transitions were measured with the radiofrequency-microwave double-resonance technique by radiofrequency pumping of some K −1 doublets. This pumping has been made possible since a small μ a dipole moment component appears owing to the asymmetric isotopic substitution.