Ab initio Study on the Molecular Structures and Chemical Bonds of CF3NO2, CF2CiNO2, CFCl2NO2 and CCl3NO2
Cai Guo-Qiang;Yu Qing-Sen; Dong Nan; Wu Nian-Ci
Acta Phys. -Chim. Sin. . 1991, (03): 333 -336 .  DOI: 10.3866/PKU.WHXB19910314