Spectroscopic characterization and thermal structural analysis of the charge-transfer complexes formed in the reaction of 1-methylpiperazine with σ-and π-acceptors

Amina Fakhro; Hassan S. Bazzi; Adel Mostafa; Lamis Shahada

doi:10.1016/j.molstruc.2010.03.011

Spectroscopic characterization and thermal structural analysis of the charge-transfer complexes formed in the reaction of 1-methylpiperazine with σ-and π-acceptors

Amina Fakhro^*, Hassan S. Bazzi, Adel Mostafa, Lamis Shahada

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Charge-transfer complexes between 1-methylpiperazine (1MPIPZ) as a donor with the π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil = CHL) and σ-acceptor iodine (I₂) have been studied spectrophotometrically in chloroform at room temperature by electronic and infrared spectra as well as elemental and thermal analysis. The obtained results indicate the formation of 1:3 M ratio for 1MPIPZ with TCNQ and TCNE, and 1:1 M ratio for 1MPIPZ with DDQ, CHL, and I ₂. Based on the obtained data, the formed charge-transfer complexes were formulated as [(1MPIPZ)(TCNQ)₃], [(1MPIPZ) (TCNE)₃], [(1MPIPZ)(DDQ)], [(1MPIPZ)(CHL)] and [(1MPIPZ)₂I]⁺ I3-.

Original language	English
Pages (from-to)	9-17
Number of pages	9
Journal	Journal of Molecular Structure
Volume	973
Issue number	1-3
DOIs	https://doi.org/10.1016/j.molstruc.2010.03.011
Publication status	Published - 2 Jun 2010
Externally published	Yes

Keywords

CHL
Charge-transfer
DDQ
Iodine (I)
TCNE
TCNQ

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10.1016/j.molstruc.2010.03.011

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@article{9ef6097e6cbc41ad8636ef86de55d01e,

title = "Spectroscopic characterization and thermal structural analysis of the charge-transfer complexes formed in the reaction of 1-methylpiperazine with σ-and π-acceptors",

abstract = "Charge-transfer complexes between 1-methylpiperazine (1MPIPZ) as a donor with the π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil = CHL) and σ-acceptor iodine (I2) have been studied spectrophotometrically in chloroform at room temperature by electronic and infrared spectra as well as elemental and thermal analysis. The obtained results indicate the formation of 1:3 M ratio for 1MPIPZ with TCNQ and TCNE, and 1:1 M ratio for 1MPIPZ with DDQ, CHL, and I 2. Based on the obtained data, the formed charge-transfer complexes were formulated as [(1MPIPZ)(TCNQ)3], [(1MPIPZ) (TCNE)3], [(1MPIPZ)(DDQ)], [(1MPIPZ)(CHL)] and [(1MPIPZ)2I]+ I3-.",

keywords = "CHL, Charge-transfer, DDQ, Iodine (I), TCNE, TCNQ",

author = "Amina Fakhro and Bazzi, {Hassan S.} and Adel Mostafa and Lamis Shahada",

year = "2010",

month = jun,

day = "2",

doi = "10.1016/j.molstruc.2010.03.011",

language = "English",

volume = "973",

pages = "9--17",

journal = "Journal of Molecular Structure",

issn = "0022-2860",

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number = "1-3",

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TY - JOUR

T1 - Spectroscopic characterization and thermal structural analysis of the charge-transfer complexes formed in the reaction of 1-methylpiperazine with σ-and π-acceptors

AU - Fakhro, Amina

AU - Bazzi, Hassan S.

AU - Mostafa, Adel

AU - Shahada, Lamis

PY - 2010/6/2

Y1 - 2010/6/2

N2 - Charge-transfer complexes between 1-methylpiperazine (1MPIPZ) as a donor with the π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil = CHL) and σ-acceptor iodine (I2) have been studied spectrophotometrically in chloroform at room temperature by electronic and infrared spectra as well as elemental and thermal analysis. The obtained results indicate the formation of 1:3 M ratio for 1MPIPZ with TCNQ and TCNE, and 1:1 M ratio for 1MPIPZ with DDQ, CHL, and I 2. Based on the obtained data, the formed charge-transfer complexes were formulated as [(1MPIPZ)(TCNQ)3], [(1MPIPZ) (TCNE)3], [(1MPIPZ)(DDQ)], [(1MPIPZ)(CHL)] and [(1MPIPZ)2I]+ I3-.

AB - Charge-transfer complexes between 1-methylpiperazine (1MPIPZ) as a donor with the π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil = CHL) and σ-acceptor iodine (I2) have been studied spectrophotometrically in chloroform at room temperature by electronic and infrared spectra as well as elemental and thermal analysis. The obtained results indicate the formation of 1:3 M ratio for 1MPIPZ with TCNQ and TCNE, and 1:1 M ratio for 1MPIPZ with DDQ, CHL, and I 2. Based on the obtained data, the formed charge-transfer complexes were formulated as [(1MPIPZ)(TCNQ)3], [(1MPIPZ) (TCNE)3], [(1MPIPZ)(DDQ)], [(1MPIPZ)(CHL)] and [(1MPIPZ)2I]+ I3-.

KW - CHL

KW - Charge-transfer

KW - DDQ

KW - Iodine (I)

KW - TCNE

KW - TCNQ

UR - http://www.scopus.com/inward/record.url?scp=77954216662&partnerID=8YFLogxK

U2 - 10.1016/j.molstruc.2010.03.011

DO - 10.1016/j.molstruc.2010.03.011

M3 - Article

AN - SCOPUS:77954216662

SN - 0022-2860

VL - 973

SP - 9

EP - 17

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

IS - 1-3

ER -

Spectroscopic characterization and thermal structural analysis of the charge-transfer complexes formed in the reaction of 1-methylpiperazine with σ-and π-acceptors

Abstract

Keywords

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