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
SN - 0009-2614
VL - 473
SP - 227
EP - 232
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -