2 The molecule depicted is currently under scrutiny for its potential in generating blue emission for OLED applications. The molecule's emission at 470 nm in ethanol is displayed below. 470 nm emission NC. CN OCH 3 470 nm emission a. Employ a potential energy surface to elucidate the phenomenon of dual fluorescence (at Amax = 350 and 470 nm) observed upon excitation of this molecule. b. In polar solvents, the fluorescence intensity of the longer wavelength species (350 nm) experiences a significant boost. Conversely, in non-polar solvents like benzene, a more widespread occurrence of dual fluorescence is noted. Elaborate on this observation.

2 The molecule depicted is currently under scrutiny for its potential in generating blue emission for OLED applications. The molecule's emission at 470 nm in ethanol is displayed below. 470 nm emission NC. CN OCH 3 470 nm emission a. Employ a potential energy surface to elucidate the phenomenon of dual fluorescence (at Amax = 350 and 470 nm) observed upon excitation of this molecule. b. In polar solvents, the fluorescence intensity of the longer wavelength species (350 nm) experiences a significant boost. Conversely, in non-polar solvents like benzene, a more widespread occurrence of dual fluorescence is noted. Elaborate on this observation.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Concept explainers

Electronic Transitions and Spectroscopy

The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.

Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.

Question

2 The molecule depicted is currently under scrutiny for its potential in generating blue emission
for OLED applications. The molecule's emission at 470 nm in ethanol is displayed below.
470 nm emission
NC.
CN
OCH 3
| 470 nm emission
a. Employ a potential energy surface to elucidate the phenomenon of dual fluorescence (at
Amax = 350 and 470 nm) observed upon excitation of this molecule.
b. In polar solvents, the fluorescence intensity of the longer wavelength species (350 nm)
experiences a significant boost. Conversely, in non-polar solvents like benzene, a more
widespread occurrence of dual fluorescence is noted. Elaborate on this observation.

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