Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework

The transformation of cadmium 7,7,8,8-tetracyanoquinodimethane (TCNQ) into a cadmium terephthalate co-ordination polymer is reported, with the chemistry of this material elucidated using elemental analysis, X-ray photoelectron spectroscopy and synchrotron radiation single-cr ystal X-ray diffraction....

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Main Authors: Sohail, M., Kiani, F., Pandarinathan, V., Khan, S., Carter, Damien, De Marco, Roland, Bond, A.
Format: Journal Article
Published: CSIRO Publishing 2017
Online Access:http://hdl.handle.net/20.500.11937/56925
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author Sohail, M.
Kiani, F.
Pandarinathan, V.
Khan, S.
Carter, Damien
De Marco, Roland
Bond, A.
author_facet Sohail, M.
Kiani, F.
Pandarinathan, V.
Khan, S.
Carter, Damien
De Marco, Roland
Bond, A.
author_sort Sohail, M.
building Curtin Institutional Repository
collection Online Access
description The transformation of cadmium 7,7,8,8-tetracyanoquinodimethane (TCNQ) into a cadmium terephthalate co-ordination polymer is reported, with the chemistry of this material elucidated using elemental analysis, X-ray photoelectron spectroscopy and synchrotron radiation single-cr ystal X-ray diffraction. A heptacoordinated Cd II linear coordination polymer catena-poly[triaqua-(µ 2 -benzene-1,4-dicarboxylato-?O,O')cadmium(ii)]hydrate (1) was isolated while attempting to recrystallize Cd(TCNQ) 2 . Density functional theory calculations for the oxidation of benzylic carbon attached to the cyano group provided evidence that the reaction pathway proposed herein is highly exergonic and thermodynamically plausible. This structure showed a distorted pentagonal bipyramidal geometry together with a symmetrical mononuclear unit in which each Cd II ion is doubly bridged by a dicarboxylato anion. Owing to the softness and minute size of these crystals, this structure had to be elucidated using synchrotron radiation X-ray crystallography.
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institution Curtin University Malaysia
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publishDate 2017
publisher CSIRO Publishing
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spelling curtin-20.500.11937-569252018-02-06T07:14:21Z Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework Sohail, M. Kiani, F. Pandarinathan, V. Khan, S. Carter, Damien De Marco, Roland Bond, A. The transformation of cadmium 7,7,8,8-tetracyanoquinodimethane (TCNQ) into a cadmium terephthalate co-ordination polymer is reported, with the chemistry of this material elucidated using elemental analysis, X-ray photoelectron spectroscopy and synchrotron radiation single-cr ystal X-ray diffraction. A heptacoordinated Cd II linear coordination polymer catena-poly[triaqua-(µ 2 -benzene-1,4-dicarboxylato-?O,O')cadmium(ii)]hydrate (1) was isolated while attempting to recrystallize Cd(TCNQ) 2 . Density functional theory calculations for the oxidation of benzylic carbon attached to the cyano group provided evidence that the reaction pathway proposed herein is highly exergonic and thermodynamically plausible. This structure showed a distorted pentagonal bipyramidal geometry together with a symmetrical mononuclear unit in which each Cd II ion is doubly bridged by a dicarboxylato anion. Owing to the softness and minute size of these crystals, this structure had to be elucidated using synchrotron radiation X-ray crystallography. 2017 Journal Article http://hdl.handle.net/20.500.11937/56925 10.1071/CH17187 CSIRO Publishing restricted
spellingShingle Sohail, M.
Kiani, F.
Pandarinathan, V.
Khan, S.
Carter, Damien
De Marco, Roland
Bond, A.
Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework
title Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework
title_full Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework
title_fullStr Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework
title_full_unstemmed Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework
title_short Transformation of Cadmium Tetracyanoquinodimethane (TCNQ) into a Cadmium Terephthalate Metal-Organic Framework
title_sort transformation of cadmium tetracyanoquinodimethane (tcnq) into a cadmium terephthalate metal-organic framework
url http://hdl.handle.net/20.500.11937/56925