2014
Acid-base properties, FT-IR, FT-Raman spectroscopy and computational study of 1-(pyrid-4-yl)piperazine.
MARY, Y. Sheena; C Yohannan PANICKER; Hema Tresa VARGHESE; Christian VAN ALSENOY; Markéta PROCHÁZKOVÁ et al.Základní údaje
Originální název
Acid-base properties, FT-IR, FT-Raman spectroscopy and computational study of 1-(pyrid-4-yl)piperazine.
Autoři
MARY, Y. Sheena; C Yohannan PANICKER; Hema Tresa VARGHESE; Christian VAN ALSENOY; Markéta PROCHÁZKOVÁ; Richard ŠEVČÍK a Pavel PAZDERA
Vydání
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Elsevier Science, 2014, 1386-1425
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10401 Organic chemistry
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.353
Kód RIV
RIV/00216224:14310/14:00074523
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000331341100058
EID Scopus
2-s2.0-84888166111
Klíčová slova anglicky
Piperazine; DFT; PED; FT-IR; FT-Raman
Změněno: 13. 3. 2018 10:52, RNDr. Richard Ševčík, Ph.D.
Anotace
V originále
We report the vibrational spectral analysis was carried out using FT-IR and FT-Raman spectroscopy for 1-(pyrid-4-yl)piperazine (PyPi). Single crystals of PyPi suitable for X-ray structural analysis were obtained. The acid-base properties are also reported. PyPi supported on a weak acid cation-exchanger in the single protonated form and this system can be used efficiently as the solid supported analogue of 4-N,N-dimethyl-aminopyridine. The complete vibrational assignments of wavenumbers were made on the basis of potential energy distribution. The HOMO and LUMO analysis is used to determine the charge transfer within the molecule and with the molecular electrostatic potential map was applied for the reactivity assessment of PyPi molecule toward proton, electrophiles and nucleopholes as well. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. The calculated first hyperpolarizability of PyPi is 17.46 times that of urea.
Návaznosti
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