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Updated: Jul 13, 2025

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
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Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

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+的红外光谱在Diglyme中的溶解:Ab Initio分子动力学和实验

Fangyong Yan1, Kallol Mukherjee2, Mark Maroncelli2

  • 1Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.

The journal of physical chemistry. B
|October 11, 2023
PubMed
概括

红外光谱学揭示了四博酸 (LiBF4) 如何影响diglyme溶剂. 被阻碍的Li+离子运动会导致新的远红外波段,而Li+-BF4-相互作用会转移中红外diglyme振动.

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Chemical Shift: Internal References and Solvent Effects

In an NMR sample, precise measurement of the absolute absorption frequencies of nuclei is difficult. A standard internal reference compound is added, and the frequency difference between the reference signal and sample signals is measured.
The internal reference compound generally used in NMR spectroscopy is tetramethylsilane (TMS). TMS is preferred because it is chemically inert, soluble in NMR solvents, and easily removable. Also, the highly shielded methyl protons in TMS yield an intense...
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IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
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