Photoelectron spectroscopic study of hydrazine

✍ Scribed by Kazuteru Osafune; Shunji Katsumata; Katsumi Kimura

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 327 KB
• Volume: 19
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(73)80382-3

✦ Synopsis

The photoelectron spectrum of hydrazine having a skew configuration (Cz! was analyzed by CNDO/Z .md AIINDO/2 methods, and it was found that valence orbit& may be assigned to the 3a(;?+), 3b(aJ, 4a(o), 4b6-1J, and 5a(n+) orbit& in this order, where n, cr, and ir denote the nitrogen nonbonding orbital, the N-N bonding orbital, and the NH2 pseudo-n orbital, respectively, and the + and -combinations mean symmetric and antisymmetric with respect to the C2 axis. The splitting between the two nonbonding bands (corresponding to 4b and Sa) can be interpreted mainly in terms of a through-bond interaction and the calculations give the dihedral angle close to available experimental data (90-95"). A consideration of sum rule on vertical ionization energies is discussed, in support of the above orbital assignment.