Lattice Dynamics of Acetylene

O. S. Binbrek; A. Anderson

doi:10.1002/pssb.2221730207

Lattice Dynamics of Acetylene

O. S. Binbrek, A. Anderson^*

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

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

5 Scopus citations

Abstract

A simple force constant model is described and applied to the vibrations of crystalline acetylene, C₂H₂ and C₂D₂, in its low temperature orthorhombic phase. The model uses ten (six intermolecular and four intramolecular) adjustable parameters to calculate the frequencies of seven lattice modes and fourteen internal mode components, and good agreement with spectroscopic data is obtained. Intermolecular force constants decrease sharply with increasing sepration and are well represented by exponential functions. Intramolecular force constants show only minor changes from their gas phase values.

Original language	English
Pages (from-to)	561-568
Number of pages	8
Journal	Physica Status Solidi (B): Basic Research
Volume	173
Issue number	2
DOIs	https://doi.org/10.1002/pssb.2221730207
State	Published - 1 Oct 1992

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Lattice Dynamics of Acetylene",

abstract = "A simple force constant model is described and applied to the vibrations of crystalline acetylene, C2H2 and C2D2, in its low temperature orthorhombic phase. The model uses ten (six intermolecular and four intramolecular) adjustable parameters to calculate the frequencies of seven lattice modes and fourteen internal mode components, and good agreement with spectroscopic data is obtained. Intermolecular force constants decrease sharply with increasing sepration and are well represented by exponential functions. Intramolecular force constants show only minor changes from their gas phase values.",

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AB - A simple force constant model is described and applied to the vibrations of crystalline acetylene, C2H2 and C2D2, in its low temperature orthorhombic phase. The model uses ten (six intermolecular and four intramolecular) adjustable parameters to calculate the frequencies of seven lattice modes and fourteen internal mode components, and good agreement with spectroscopic data is obtained. Intermolecular force constants decrease sharply with increasing sepration and are well represented by exponential functions. Intramolecular force constants show only minor changes from their gas phase values.

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JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

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Lattice Dynamics of Acetylene

Abstract

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