Excited state spectroscopy of 1,5-naphthyridine: Identification of the lowest energy excited singlet state as 1Bg( 1nπ*)

David W. Boldridge; Gary W. Scott

doi:10.1063/1.446301

Excited state spectroscopy of 1,5-naphthyridine: Identification of the lowest energy excited singlet state as ¹B_g( ¹nπ*)

David W. Boldridge
, Gary W. Scott

Chemistry Department

University of California at Riverside

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The electronic absorption spectra of excited-state 1,5-naphthyridine from 400 to 650 nm are reported in several solvents. The time evolution of these spectra indicate that they arise from one or more S_n←S ₁ transitions. Comparison of these observed spectra with calculated excited state absorption spectra obtained using the INDO molecular orbital formalism demonstrates excellent agreement of the transition energies and oscillator strengths with S_n(¹A_u)←S ₁(¹B_g,nπ* transitions. These results conclusively identify the lowest excited singlet state of 1,5-naphthyridine as ¹B_g(¹nπ*).

Original language	English
Pages (from-to)	3639-3644
Number of pages	6
Journal	Journal of Chemical Physics
Volume	79
Issue number	8
DOIs	https://doi.org/10.1063/1.446301
State	Published - 1983

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@article{caf1b28f3c434fba938c30cc7c4fd9ce,

title = "Excited state spectroscopy of 1,5-naphthyridine: Identification of the lowest energy excited singlet state as 1Bg( 1nπ*)",

abstract = "The electronic absorption spectra of excited-state 1,5-naphthyridine from 400 to 650 nm are reported in several solvents. The time evolution of these spectra indicate that they arise from one or more Sn←S 1 transitions. Comparison of these observed spectra with calculated excited state absorption spectra obtained using the INDO molecular orbital formalism demonstrates excellent agreement of the transition energies and oscillator strengths with Sn(1Au)←S 1(1Bg,nπ* transitions. These results conclusively identify the lowest excited singlet state of 1,5-naphthyridine as 1Bg(1nπ*).",

author = "Boldridge, \{David W.\} and Scott, \{Gary W.\}",

year = "1983",

doi = "10.1063/1.446301",

language = "English",

volume = "79",

pages = "3639--3644",

number = "8",

}

TY - JOUR

T1 - Excited state spectroscopy of 1,5-naphthyridine

T2 - Identification of the lowest energy excited singlet state as 1Bg( 1nπ*)

AU - Boldridge, David W.

AU - Scott, Gary W.

PY - 1983

Y1 - 1983

N2 - The electronic absorption spectra of excited-state 1,5-naphthyridine from 400 to 650 nm are reported in several solvents. The time evolution of these spectra indicate that they arise from one or more Sn←S 1 transitions. Comparison of these observed spectra with calculated excited state absorption spectra obtained using the INDO molecular orbital formalism demonstrates excellent agreement of the transition energies and oscillator strengths with Sn(1Au)←S 1(1Bg,nπ* transitions. These results conclusively identify the lowest excited singlet state of 1,5-naphthyridine as 1Bg(1nπ*).

AB - The electronic absorption spectra of excited-state 1,5-naphthyridine from 400 to 650 nm are reported in several solvents. The time evolution of these spectra indicate that they arise from one or more Sn←S 1 transitions. Comparison of these observed spectra with calculated excited state absorption spectra obtained using the INDO molecular orbital formalism demonstrates excellent agreement of the transition energies and oscillator strengths with Sn(1Au)←S 1(1Bg,nπ* transitions. These results conclusively identify the lowest excited singlet state of 1,5-naphthyridine as 1Bg(1nπ*).

UR - https://www.scopus.com/pages/publications/36749111965

U2 - 10.1063/1.446301

DO - 10.1063/1.446301

M3 - Article

AN - SCOPUS:36749111965

SN - 0021-9606

VL - 79

SP - 3639

EP - 3644

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 8

ER -

Excited state spectroscopy of 1,5-naphthyridine: Identification of the lowest energy excited singlet state as ¹B_g( ¹nπ*)

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