The Molecular Structure and the Arrangement Changes of Stilbazoles in the Phase Transition Process Studied by Temperature-variable FTIR Spectroscopy

Shimei Jiang, Hongwei Zhou, Yanqing Tian

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Hydrogen bonding is one of the principal intermolecular forces to enable the construction of supramolecular structures. By choosing an appropriate proton acceptor and a proton donor, stable intermolecular hydrogen bonds can form and affect or change the phase behavior of the donor and acceptor. We have obtained two intermolecular hydrogen bonded liquid crystals using the stilbazoles as the proton acceptor. In this paper we will research the molecular structure and the arrangement changes during the phase transition process of the stilbazoles by temperature-variable FTIR spectroscopy.The results show that the number of the gauche conformation is increasing as the temperature increasing. When it is coming to the isotropic phase, the alkyl chain is in disorder. The frequency shift of carbonyl stretching bands has been found to be sensitive to the change of molecular conformation, inter and intramolecular interactions.

Original languageEnglish (US)
Pages (from-to)760
Number of pages1
JournalGuang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Volume20
Issue number6
StatePublished - 2000
Externally publishedYes

Fingerprint

Molecular structure
Protons
molecular structure
Phase transitions
Spectroscopy
protons
Conformations
Hydrogen bonds
spectroscopy
Liquid Crystals
intermolecular forces
hydrogen
Phase behavior
Liquid crystals
Temperature
frequency shift
Stretching
temperature
Hydrogen
liquid crystals

Keywords

  • Phase transition
  • Stilbazoles
  • Temperature-variable FTIR

ASJC Scopus subject areas

  • Spectroscopy
  • Safety, Risk, Reliability and Quality

Cite this

@article{9aaf3a2bea734c02891f188b47036c5b,
title = "The Molecular Structure and the Arrangement Changes of Stilbazoles in the Phase Transition Process Studied by Temperature-variable FTIR Spectroscopy",
abstract = "Hydrogen bonding is one of the principal intermolecular forces to enable the construction of supramolecular structures. By choosing an appropriate proton acceptor and a proton donor, stable intermolecular hydrogen bonds can form and affect or change the phase behavior of the donor and acceptor. We have obtained two intermolecular hydrogen bonded liquid crystals using the stilbazoles as the proton acceptor. In this paper we will research the molecular structure and the arrangement changes during the phase transition process of the stilbazoles by temperature-variable FTIR spectroscopy.The results show that the number of the gauche conformation is increasing as the temperature increasing. When it is coming to the isotropic phase, the alkyl chain is in disorder. The frequency shift of carbonyl stretching bands has been found to be sensitive to the change of molecular conformation, inter and intramolecular interactions.",
keywords = "Phase transition, Stilbazoles, Temperature-variable FTIR",
author = "Shimei Jiang and Hongwei Zhou and Yanqing Tian",
year = "2000",
language = "English (US)",
volume = "20",
pages = "760",
journal = "Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis",
issn = "1000-0593",
publisher = "Science Press",
number = "6",

}

TY - JOUR

T1 - The Molecular Structure and the Arrangement Changes of Stilbazoles in the Phase Transition Process Studied by Temperature-variable FTIR Spectroscopy

AU - Jiang, Shimei

AU - Zhou, Hongwei

AU - Tian, Yanqing

PY - 2000

Y1 - 2000

N2 - Hydrogen bonding is one of the principal intermolecular forces to enable the construction of supramolecular structures. By choosing an appropriate proton acceptor and a proton donor, stable intermolecular hydrogen bonds can form and affect or change the phase behavior of the donor and acceptor. We have obtained two intermolecular hydrogen bonded liquid crystals using the stilbazoles as the proton acceptor. In this paper we will research the molecular structure and the arrangement changes during the phase transition process of the stilbazoles by temperature-variable FTIR spectroscopy.The results show that the number of the gauche conformation is increasing as the temperature increasing. When it is coming to the isotropic phase, the alkyl chain is in disorder. The frequency shift of carbonyl stretching bands has been found to be sensitive to the change of molecular conformation, inter and intramolecular interactions.

AB - Hydrogen bonding is one of the principal intermolecular forces to enable the construction of supramolecular structures. By choosing an appropriate proton acceptor and a proton donor, stable intermolecular hydrogen bonds can form and affect or change the phase behavior of the donor and acceptor. We have obtained two intermolecular hydrogen bonded liquid crystals using the stilbazoles as the proton acceptor. In this paper we will research the molecular structure and the arrangement changes during the phase transition process of the stilbazoles by temperature-variable FTIR spectroscopy.The results show that the number of the gauche conformation is increasing as the temperature increasing. When it is coming to the isotropic phase, the alkyl chain is in disorder. The frequency shift of carbonyl stretching bands has been found to be sensitive to the change of molecular conformation, inter and intramolecular interactions.

KW - Phase transition

KW - Stilbazoles

KW - Temperature-variable FTIR

UR - http://www.scopus.com/inward/record.url?scp=0347370474&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0347370474&partnerID=8YFLogxK

M3 - Article

VL - 20

SP - 760

JO - Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

JF - Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

SN - 1000-0593

IS - 6

ER -