Experimental vibrational spectra and computational study of 1,4-diazabicyclo[2.2.2]octane

Коваленко, В. И.; Akhmadiyarov, Aydar A.; Vandyukov, A.E.; Khamatgalimov, Ayrat R.

doi:10.1016/j.molstruc.2012.06.045

Cited by 24 publications

(14 citation statements)

References 22 publications

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“…The presence of DABCO in the degradation product was conrmed by the bending deformation at 1460 cm À1 ( ) of the CH 2 groups 103 while the strong signal at 1030 cm À1 ( ) is due to C-N stretching vibrations in the DABCO structure. 104,105 4…”

Section: Ftir Analysis Of the Solid Degradation Productsmentioning

confidence: 99%

Degradation of radiation grafted hydroxide anion exchange membrane immersed in neutral pH: removal of vinylbenzyl trimethylammonium hydroxide due to oxidation

et al. 2017

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Section: Ftir Analysis Of the Solid Degradation Productsmentioning

confidence: 99%

Degradation of radiation grafted hydroxide anion exchange membrane immersed in neutral pH: removal of vinylbenzyl trimethylammonium hydroxide due to oxidation

et al. 2017

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“…Figure a illustrates that Raman spectrum for MFe thin film in the range of 100–1,100 cm −1 and 2,800–3,100 cm −1 (inset) at room temperature. Raman modes are assigned by the available literatures . The spectra are analyzed mostly on the basis of vibrations of its components Hdabco + and ReO 4 − .…”

Section: Resultsmentioning

confidence: 99%

Raman evolution of order–disorder phase transition in multiaxial molecular ferroelectric thin film

Zafar

Guo

et al. 2019

J Raman Spectroscopy

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Multiaxial molecular ferroelectrics (MFe) attain great attention due to their number of equivalent ferroelectric axes, an essential characteristic for many applications of these polar polycrystalline materials. Here we report a systematic approach to reveal the temperature‐dependent Raman spectroscopic investigation of the vibrational properties of a [Hdabco]ReO4 (dabco = 1,4‐diazabicyclo[2.2.2]octane), a multiaxial MFe thin film. The Raman spectra allowed to obtain information relative to the change in molecular symmetry governed by the order–disorder phase transition. This phase transition is manifested by the temperature‐dependent peak shift, full width half maximum and intensity of distinct vibrational modes. The experimental observation reveals that ferroelectric phase transition is mainly driven by the reorientation motion of the ReO4− anions and monopronated dabco cations. Hence, we demonstrated that the Raman spectroscopy is a very useful tool to characterize the newly emerged MFe system.

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“…moment perpendicular to the N-N axis. 42 No spectral differences between the polarized IR spectra were observed for the MOF lms obtained from random Cu(OH) 2 nanobelts, while a strong polarization-dependence is visible for threedimensionally oriented MOF lms.…”

Section: Degree Of In-plane Orientation From Polarization-dependent Ir Spectroscopy In Transmissionmentioning

confidence: 95%

Infrared crystallography for framework and linker orientation in metal–organic framework films

et al. 2021

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Experimental vibrational spectra and computational study of 1,4-diazabicyclo[2.2.2]octane

Cited by 24 publications

References 22 publications

Degradation of radiation grafted hydroxide anion exchange membrane immersed in neutral pH: removal of vinylbenzyl trimethylammonium hydroxide due to oxidation

Degradation of radiation grafted hydroxide anion exchange membrane immersed in neutral pH: removal of vinylbenzyl trimethylammonium hydroxide due to oxidation

Raman evolution of order–disorder phase transition in multiaxial molecular ferroelectric thin film

Infrared crystallography for framework and linker orientation in metal–organic framework films

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