Can I read Theoretical Investigation of Stokes Shift of 3,4-Diaryl-substituted Maleimide Fluorophores on EtoBox?

Theoretical Investigation of Stokes Shift of 3,4-Diaryl-substituted Maleimide Fluorophores by Bo-Cheng Wang; Hsien-Ren Liao; Hsiu-Chih Yeh; Wei-Ching Wu; Chin-Ti Chen is a Materials Science article available to read on EtoBox.

What is Theoretical Investigation of Stokes Shift of 3,4-Diaryl-substituted Maleimide Fluorophores about?

According to the experimental data, a new type of fluorophores based on 3,4-diaryl substituted maleimide compounds was found to exhibit moderate to large Stokes shift. This large Stokes shift is assumed to be the consequence of a substantial change of the geometric structure from the ground state (S 0 ) to the first excited state (S 1 ). In this study, the hypothesis is examined by the computational methods. The semiempirical AM1 and the density functional computational methods were used to generate the ground and the excited state structures of maleimide and its derivatives. The absorption and emission energies of maleimide derivatives were obtained by the semiempirical ZINDO method. The calculated Stokes shift ðDEÞ is related to the difference between the absorption and emission energies. The theoretical calculations confirmed that the magnitude of the Stokes shift is parallel to a change of the molecular structure from non-planar in the S 0 ground state to more planar in the S 1 excited state. The calculated absorption and emission energies and related Stokes shift agree well with the experimental results.

Who reads Theoretical Investigation of Stokes Shift of 3,4-Diaryl-substituted Maleimide Fluorophores?

Author

Bo-Cheng Wang; Hsien-Ren Liao; Hsiu-Chih Yeh; Wei-Ching Wu; Chin-Ti Chen

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-2313)

Published

2005

Language

EN

Field

Materials Science (Physical Sciences)