Structural chemistry and selective CO2 uptake of a piperazine-derived porous coordination polymer

Chris Samuel Hawes, Keith White, Brendan Francis Abrahams, Gregory Paul Knowles, Alan Loyd Chaffee, Stuart Robert Batten, David Roger Turner

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A new piperazine-derived ligand has been prepared and used to synthesise a porous coordination polymer which displays selective carbon dioxide uptake after solvent exchange and thermal activation. The ligand N,N′-bis(4-carboxyphenylmethylene)piperazine H2L1 was prepared from piperazine in three steps and good yield. A structure containing the deprotonated form K2L1·2H2O was determined and consists of a three-dimensional coordination polymer containing inorganic K2(COO)2(OH2) layers separated by the long organic bridging linker. The free compound H2L1 displays a one-dimensional hydrogen-bonded polymeric structure in the solid state with hydrogen bonding interactions between carboxylic acids and piperazine groups tightly linking molecules together. The two-dimensional polymeric complex [Zn3(L1)2(OH)2]·2DMF·0.5H2O 1 was prepared and analysed in the solid state to reveal tubular one-dimensional channels which, when activated by solvent exchange and evacuation, displayed selective affinity for CO2 over N2 and H2
Original languageEnglish
Pages (from-to)2196-2203
Number of pages8
JournalCrystEngComm
Volume17
Issue number10
DOIs
Publication statusPublished - 2015

Cite this

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title = "Structural chemistry and selective CO2 uptake of a piperazine-derived porous coordination polymer",
abstract = "A new piperazine-derived ligand has been prepared and used to synthesise a porous coordination polymer which displays selective carbon dioxide uptake after solvent exchange and thermal activation. The ligand N,N′-bis(4-carboxyphenylmethylene)piperazine H2L1 was prepared from piperazine in three steps and good yield. A structure containing the deprotonated form K2L1·2H2O was determined and consists of a three-dimensional coordination polymer containing inorganic K2(COO)2(OH2) layers separated by the long organic bridging linker. The free compound H2L1 displays a one-dimensional hydrogen-bonded polymeric structure in the solid state with hydrogen bonding interactions between carboxylic acids and piperazine groups tightly linking molecules together. The two-dimensional polymeric complex [Zn3(L1)2(OH)2]·2DMF·0.5H2O 1 was prepared and analysed in the solid state to reveal tubular one-dimensional channels which, when activated by solvent exchange and evacuation, displayed selective affinity for CO2 over N2 and H2",
author = "Hawes, {Chris Samuel} and Keith White and Abrahams, {Brendan Francis} and Knowles, {Gregory Paul} and Chaffee, {Alan Loyd} and Batten, {Stuart Robert} and Turner, {David Roger}",
year = "2015",
doi = "10.1039/c4ce02547d",
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volume = "17",
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Structural chemistry and selective CO2 uptake of a piperazine-derived porous coordination polymer. / Hawes, Chris Samuel; White, Keith; Abrahams, Brendan Francis; Knowles, Gregory Paul; Chaffee, Alan Loyd; Batten, Stuart Robert; Turner, David Roger.

In: CrystEngComm, Vol. 17, No. 10, 2015, p. 2196-2203.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Structural chemistry and selective CO2 uptake of a piperazine-derived porous coordination polymer

AU - Hawes, Chris Samuel

AU - White, Keith

AU - Abrahams, Brendan Francis

AU - Knowles, Gregory Paul

AU - Chaffee, Alan Loyd

AU - Batten, Stuart Robert

AU - Turner, David Roger

PY - 2015

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N2 - A new piperazine-derived ligand has been prepared and used to synthesise a porous coordination polymer which displays selective carbon dioxide uptake after solvent exchange and thermal activation. The ligand N,N′-bis(4-carboxyphenylmethylene)piperazine H2L1 was prepared from piperazine in three steps and good yield. A structure containing the deprotonated form K2L1·2H2O was determined and consists of a three-dimensional coordination polymer containing inorganic K2(COO)2(OH2) layers separated by the long organic bridging linker. The free compound H2L1 displays a one-dimensional hydrogen-bonded polymeric structure in the solid state with hydrogen bonding interactions between carboxylic acids and piperazine groups tightly linking molecules together. The two-dimensional polymeric complex [Zn3(L1)2(OH)2]·2DMF·0.5H2O 1 was prepared and analysed in the solid state to reveal tubular one-dimensional channels which, when activated by solvent exchange and evacuation, displayed selective affinity for CO2 over N2 and H2

AB - A new piperazine-derived ligand has been prepared and used to synthesise a porous coordination polymer which displays selective carbon dioxide uptake after solvent exchange and thermal activation. The ligand N,N′-bis(4-carboxyphenylmethylene)piperazine H2L1 was prepared from piperazine in three steps and good yield. A structure containing the deprotonated form K2L1·2H2O was determined and consists of a three-dimensional coordination polymer containing inorganic K2(COO)2(OH2) layers separated by the long organic bridging linker. The free compound H2L1 displays a one-dimensional hydrogen-bonded polymeric structure in the solid state with hydrogen bonding interactions between carboxylic acids and piperazine groups tightly linking molecules together. The two-dimensional polymeric complex [Zn3(L1)2(OH)2]·2DMF·0.5H2O 1 was prepared and analysed in the solid state to reveal tubular one-dimensional channels which, when activated by solvent exchange and evacuation, displayed selective affinity for CO2 over N2 and H2

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