The polarized absorption spectrum of 5-methyl indole in polyethylene and polyvinylalcohol films

A. Suwaiyan

doi:10.1016/0584-8539(86)80014-9

The polarized absorption spectrum of 5-methyl indole in polyethylene and polyvinylalcohol films

A. Suwaiyan^*

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

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

5 Scopus citations

Abstract

The stretched film technique has been used to resolve the two overlapping ¹L_a and ¹L_b transitions of indole. 5-Methyl indole was studied as a model compound in two polymer matrices, polyethylene (PE) and polyvinylalcohol (PVA). The directions of the transition moments with respect to the long molecular axis are found to be in PE - 10° and +22° for ¹L_a and ¹L_b, respectively. These angles are found to be -25° and +29° in PVA. ¹L_a has two prominent vibrations in PE at 2040 and 2895 cm^-1 from the origin. ¹L_b has four prominent vibrations in PE at 761, 1308, 1937 and 3196 cm^-1 from the origin. In PVA, ¹L_a has two prominent vibrations at 2149 and 2874 cm^-1 from the origin and ¹L_b has four prominent vibrations at 1049, 1352, 2229 and 3196 cm^-1 from the origin.

Original language	English
Pages (from-to)	1021-1025
Number of pages	5
Journal	Spectrochimica Acta Part A: Molecular Spectroscopy
Volume	42
Issue number	9
DOIs	https://doi.org/10.1016/0584-8539(86)80014-9
State	Published - 1986

ASJC Scopus subject areas

General Engineering

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title = "The polarized absorption spectrum of 5-methyl indole in polyethylene and polyvinylalcohol films",

abstract = "The stretched film technique has been used to resolve the two overlapping 1La and 1Lb transitions of indole. 5-Methyl indole was studied as a model compound in two polymer matrices, polyethylene (PE) and polyvinylalcohol (PVA). The directions of the transition moments with respect to the long molecular axis are found to be in PE - 10° and +22° for 1La and 1Lb, respectively. These angles are found to be -25° and +29° in PVA. 1La has two prominent vibrations in PE at 2040 and 2895 cm-1 from the origin. 1Lb has four prominent vibrations in PE at 761, 1308, 1937 and 3196 cm-1 from the origin. In PVA, 1La has two prominent vibrations at 2149 and 2874 cm-1 from the origin and 1Lb has four prominent vibrations at 1049, 1352, 2229 and 3196 cm-1 from the origin.",

author = "A. Suwaiyan",

year = "1986",

doi = "10.1016/0584-8539(86)80014-9",

language = "English",

volume = "42",

pages = "1021--1025",

journal = "Spectrochimica Acta Part A: Molecular Spectroscopy",

issn = "0584-8539",

publisher = "Pergamon Press Ltd.",

number = "9",

}

TY - JOUR

T1 - The polarized absorption spectrum of 5-methyl indole in polyethylene and polyvinylalcohol films

AU - Suwaiyan, A.

PY - 1986

Y1 - 1986

N2 - The stretched film technique has been used to resolve the two overlapping 1La and 1Lb transitions of indole. 5-Methyl indole was studied as a model compound in two polymer matrices, polyethylene (PE) and polyvinylalcohol (PVA). The directions of the transition moments with respect to the long molecular axis are found to be in PE - 10° and +22° for 1La and 1Lb, respectively. These angles are found to be -25° and +29° in PVA. 1La has two prominent vibrations in PE at 2040 and 2895 cm-1 from the origin. 1Lb has four prominent vibrations in PE at 761, 1308, 1937 and 3196 cm-1 from the origin. In PVA, 1La has two prominent vibrations at 2149 and 2874 cm-1 from the origin and 1Lb has four prominent vibrations at 1049, 1352, 2229 and 3196 cm-1 from the origin.

AB - The stretched film technique has been used to resolve the two overlapping 1La and 1Lb transitions of indole. 5-Methyl indole was studied as a model compound in two polymer matrices, polyethylene (PE) and polyvinylalcohol (PVA). The directions of the transition moments with respect to the long molecular axis are found to be in PE - 10° and +22° for 1La and 1Lb, respectively. These angles are found to be -25° and +29° in PVA. 1La has two prominent vibrations in PE at 2040 and 2895 cm-1 from the origin. 1Lb has four prominent vibrations in PE at 761, 1308, 1937 and 3196 cm-1 from the origin. In PVA, 1La has two prominent vibrations at 2149 and 2874 cm-1 from the origin and 1Lb has four prominent vibrations at 1049, 1352, 2229 and 3196 cm-1 from the origin.

UR - https://www.scopus.com/pages/publications/4243809016

U2 - 10.1016/0584-8539(86)80014-9

DO - 10.1016/0584-8539(86)80014-9

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AN - SCOPUS:4243809016

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SP - 1021

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JO - Spectrochimica Acta Part A: Molecular Spectroscopy

JF - Spectrochimica Acta Part A: Molecular Spectroscopy

IS - 9

ER -

The polarized absorption spectrum of 5-methyl indole in polyethylene and polyvinylalcohol films

Abstract

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