Near-infrared spectroscopy of LiNH3: first observation of the electronic spectrum |
| |
Authors: | Varriale Luigi Bhalla Nitika Tonge Nicola M Ellis Andrew M Wright Timothy G |
| |
Affiliation: | Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom. |
| |
Abstract: | Electronic spectra of LiNH(3) and its partially and fully deuterated analogues are reported for the first time. The spectra have been recorded in the near-infrared and are consistent with two electronic transitions in close proximity, the ?(2)E-X(2)A(1) and B(2)A(1)-X(2)A(1) systems. Vibrational structure is seen in both systems, with the Li-N-H bending vibration (ν(6)) dominant in the ?(2)E-X(2)A(1) system and the Li-N stretch (ν(3)) in the B(2)A(1)-X(2)A(1) system. The prominence of the 6(0)(1) band in the ?(2)E-X(2)A(1) spectrum is attributed to Herzberg-Teller coupling. The proximity of the B(2)A(1) state, which lies a little more than 200 cm(-1) above the ?(2)E state, is likely to be the primary contributor to this strong vibronic coupling. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|