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High resolution electronic spectroscopy of 1‐aminonaphthalene: S0 and S1 geometries and S1←S0 transition moment orientations
| Content Provider | Semantic Scholar |
|---|---|
| Author | Berden, Giel Meerts, W. Leo Plusquellic, David F. Fujita, Ikuo Pratt, David W. |
| Copyright Year | 1996 |
| Abstract | Fluorescence excitation spectroscopy at both vibrational and rotational resolution has been used to probe the changes in energy, electronic distribution, and geometry that occur when 1‐aminonaphthalene (1AN) absorbs light at ∼332 nm. The 000 band of the S1←S0 transition of 1AN is red shifted by nearly 2000 cm−1 with respect to the corresponding band of naphthalene. Additionally, it is mainly b‐axis polarized, unlike the corresponding bands of naphthalene and other 1‐substituted naphthalenes. Thus, 1La/1Lb state reversal occurs on 1‐substitution of naphthalene with an NH2 group. The S0 state of 1AN is pyramidally distorted at the nitrogen atom. Additionally, the NH2 group is rotated by ∼20° about the C–NH2 bond. Excitation of 1AN to the zero‐point vibrational level of its S1 state reduces the C–NH2 bond length by ∼0.2 A and flattens the NH2 group along both out‐of‐plane coordinates. Other vibronic bands in the S1←S0 transition exhibit significantly different rotational constants, inertial defects, and tran... |
| Starting Page | 3935 |
| Ending Page | 3946 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.471160 |
| Alternate Webpage(s) | http://mbp.science.ru.nl/giel_berden/pdfps/jcp_amino.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.471160 |
| Volume Number | 104 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
