Tampere University of Technology

TUTCRIS Research Portal

Synthesis, crystal structure, spectral, dielectric characteristics and conduction mechanism of two novel carboxylates of 1-benzhydrylpiperazine

Research output: Contribution to journalArticleScientificpeer-review

Standard

Synthesis, crystal structure, spectral, dielectric characteristics and conduction mechanism of two novel carboxylates of 1-benzhydrylpiperazine. / Wacharine, Intissar; Valkonen, Arto; Rzaigui, Mohamed; Smirani, Wajda.

In: Monatshefte fur Chemie, Vol. 146, No. 12, 2015, p. 2007-2020.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

Wacharine, Intissar ; Valkonen, Arto ; Rzaigui, Mohamed ; Smirani, Wajda. / Synthesis, crystal structure, spectral, dielectric characteristics and conduction mechanism of two novel carboxylates of 1-benzhydrylpiperazine. In: Monatshefte fur Chemie. 2015 ; Vol. 146, No. 12. pp. 2007-2020.

Bibtex - Download

@article{65c686a86f0e4c21a33320f134f9ee6f,
title = "Synthesis, crystal structure, spectral, dielectric characteristics and conduction mechanism of two novel carboxylates of 1-benzhydrylpiperazine",
abstract = "Two new 1-benzhydrylpiperazinium carboxylates with tartrate and maleate, (C17H21N2)(C4H5O6) and (C17H22N2)(C4H3O4)2, have been synthesized and characterized. Crystal structure determinations show that the compounds crystallize in the P21 and the P21/c space groups of the monoclinic system, respectively. Only in the maleate the organic group is protonated on both nitrogen atoms of piperazine ring. The infrared spectra of these compounds reported from 400 to 4000 cm−1 confirmed the presence of the principal bands assigned to the internal modes of cations and anions of both compounds. The optical band gaps were calculated and found to be 3.46 and 4.14 eV for tartrate and maleate, respectively. Different molecular motions were determinate via dielectric relaxation spectroscopy. Measurements of AC conductivity as a function of frequency at different temperatures indicated the hopping conduction mechanism. The number of 13C CP-MAS NMR lines is in good agreement with the crystallographic data. Graphical abstract: [Figure not available: see fulltext.]",
keywords = "Carboxylic acids, Crystal structure, Hydrogen bonds, NMR spectroscopy, Solid state, X-ray structure determination",
author = "Intissar Wacharine and Arto Valkonen and Mohamed Rzaigui and Wajda Smirani",
year = "2015",
doi = "10.1007/s00706-015-1553-1",
language = "English",
volume = "146",
pages = "2007--2020",
journal = "Monatshefte fur Chemie",
issn = "0026-9247",
publisher = "Springer Verlag",
number = "12",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Synthesis, crystal structure, spectral, dielectric characteristics and conduction mechanism of two novel carboxylates of 1-benzhydrylpiperazine

AU - Wacharine, Intissar

AU - Valkonen, Arto

AU - Rzaigui, Mohamed

AU - Smirani, Wajda

PY - 2015

Y1 - 2015

N2 - Two new 1-benzhydrylpiperazinium carboxylates with tartrate and maleate, (C17H21N2)(C4H5O6) and (C17H22N2)(C4H3O4)2, have been synthesized and characterized. Crystal structure determinations show that the compounds crystallize in the P21 and the P21/c space groups of the monoclinic system, respectively. Only in the maleate the organic group is protonated on both nitrogen atoms of piperazine ring. The infrared spectra of these compounds reported from 400 to 4000 cm−1 confirmed the presence of the principal bands assigned to the internal modes of cations and anions of both compounds. The optical band gaps were calculated and found to be 3.46 and 4.14 eV for tartrate and maleate, respectively. Different molecular motions were determinate via dielectric relaxation spectroscopy. Measurements of AC conductivity as a function of frequency at different temperatures indicated the hopping conduction mechanism. The number of 13C CP-MAS NMR lines is in good agreement with the crystallographic data. Graphical abstract: [Figure not available: see fulltext.]

AB - Two new 1-benzhydrylpiperazinium carboxylates with tartrate and maleate, (C17H21N2)(C4H5O6) and (C17H22N2)(C4H3O4)2, have been synthesized and characterized. Crystal structure determinations show that the compounds crystallize in the P21 and the P21/c space groups of the monoclinic system, respectively. Only in the maleate the organic group is protonated on both nitrogen atoms of piperazine ring. The infrared spectra of these compounds reported from 400 to 4000 cm−1 confirmed the presence of the principal bands assigned to the internal modes of cations and anions of both compounds. The optical band gaps were calculated and found to be 3.46 and 4.14 eV for tartrate and maleate, respectively. Different molecular motions were determinate via dielectric relaxation spectroscopy. Measurements of AC conductivity as a function of frequency at different temperatures indicated the hopping conduction mechanism. The number of 13C CP-MAS NMR lines is in good agreement with the crystallographic data. Graphical abstract: [Figure not available: see fulltext.]

KW - Carboxylic acids

KW - Crystal structure

KW - Hydrogen bonds

KW - NMR spectroscopy

KW - Solid state

KW - X-ray structure determination

UR - http://www.scopus.com/inward/record.url?scp=84939509914&partnerID=8YFLogxK

U2 - 10.1007/s00706-015-1553-1

DO - 10.1007/s00706-015-1553-1

M3 - Article

VL - 146

SP - 2007

EP - 2020

JO - Monatshefte fur Chemie

JF - Monatshefte fur Chemie

SN - 0026-9247

IS - 12

ER -