FTIR investigation of the reaction between pyridine and iodine in a polyethylene host. Formation of N-iodopyridinium polyiodide

Eva Karlsen, Jens Spanget-Larsen

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Resumé

The reaction between pyridine and I2 in a low-density polyethylene (LDPE) host is investigated by FTIR vibrational spectroscopy in the mid- and far-IR regions. The investigation is supported by linear dichroism measurements on stretched LDPE samples, and by the results of quantum chemical density functional theoretical (DFT) calculations. Unlike the situation in liquid alkane solutions, pyridine and I2 dissolved in LDPE react to form N-iodopyridinium polyiodide. The ionic reaction is particularly efficient in stretched LDPE, suggesting that the reaction cavities in the stretched polymer catalyze the formation of extended polyiodide chain structures. The spectroscopic analysis indicates that the ionic product is present in the form of a well-defined complex.
OriginalsprogEngelsk
TidsskriftChemical Physics Letters
Vol/bind473
Udgave nummer4-6
Sider (fra-til)227-232
Antal sider6
ISSN0009-2614
DOI
StatusUdgivet - 2009

Citer dette

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abstract = "The reaction between pyridine and I2 in a low-density polyethylene (LDPE) host is investigated by FTIR vibrational spectroscopy in the mid- and far-IR regions. The investigation is supported by linear dichroism measurements on stretched LDPE samples, and by the results of quantum chemical density functional theoretical (DFT) calculations. Unlike the situation in liquid alkane solutions, pyridine and I2 dissolved in LDPE react to form N-iodopyridinium polyiodide. The ionic reaction is particularly efficient in stretched LDPE, suggesting that the reaction cavities in the stretched polymer catalyze the formation of extended polyiodide chain structures. The spectroscopic analysis indicates that the ionic product is present in the form of a well-defined complex.",
author = "Eva Karlsen and Jens Spanget-Larsen",
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language = "English",
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pages = "227--232",
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FTIR investigation of the reaction between pyridine and iodine in a polyethylene host. Formation of N-iodopyridinium polyiodide. / Karlsen, Eva; Spanget-Larsen, Jens.

I: Chemical Physics Letters, Bind 473, Nr. 4-6, 2009, s. 227-232.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - FTIR investigation of the reaction between pyridine and iodine in a polyethylene host. Formation of N-iodopyridinium polyiodide

AU - Karlsen, Eva

AU - Spanget-Larsen, Jens

PY - 2009

Y1 - 2009

N2 - The reaction between pyridine and I2 in a low-density polyethylene (LDPE) host is investigated by FTIR vibrational spectroscopy in the mid- and far-IR regions. The investigation is supported by linear dichroism measurements on stretched LDPE samples, and by the results of quantum chemical density functional theoretical (DFT) calculations. Unlike the situation in liquid alkane solutions, pyridine and I2 dissolved in LDPE react to form N-iodopyridinium polyiodide. The ionic reaction is particularly efficient in stretched LDPE, suggesting that the reaction cavities in the stretched polymer catalyze the formation of extended polyiodide chain structures. The spectroscopic analysis indicates that the ionic product is present in the form of a well-defined complex.

AB - The reaction between pyridine and I2 in a low-density polyethylene (LDPE) host is investigated by FTIR vibrational spectroscopy in the mid- and far-IR regions. The investigation is supported by linear dichroism measurements on stretched LDPE samples, and by the results of quantum chemical density functional theoretical (DFT) calculations. Unlike the situation in liquid alkane solutions, pyridine and I2 dissolved in LDPE react to form N-iodopyridinium polyiodide. The ionic reaction is particularly efficient in stretched LDPE, suggesting that the reaction cavities in the stretched polymer catalyze the formation of extended polyiodide chain structures. The spectroscopic analysis indicates that the ionic product is present in the form of a well-defined complex.

U2 - 10.1016/j.cplett.2009.04.005

DO - 10.1016/j.cplett.2009.04.005

M3 - Journal article

VL - 473

SP - 227

EP - 232

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 4-6

ER -