Supramolecular Assemblies and Reversible De-/ Rehydration in One-Dimensional Dimethyltin Carboxylates

Ravi Shankar; Archishmati Dubey; Ekta Jakhar; Priyanka Chauhan; Gabriele Kociok-Köhn

doi:10.1002/ejic.202200052

Supramolecular Assemblies and Reversible De-/ Rehydration in One-Dimensional Dimethyltin Carboxylates

Ravi Shankar, Archishmati Dubey, Ekta Jakhar, Priyanka Chauhan, Gabriele Kociok-Köhn

Indian Institute of Technology Kanpur

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

Abstract

The study presents the synthesis and structural aspects of a new family of dimethyltin carboxylates, [(Me₂Sn)₂(btec)(bipy)(H₂O)] ⋅ 4H₂O (1), [Me₂Sn(btec)_0.5(bipy)]₂ ⋅ H₂O (2), [Me₂Sn(btec)_0.5(bipy)] ⋅ 3H₂O ⋅ 0.5bipy (3) and [Me₂Sn(btec)_0.5(phen)] (4) derived from 1,2,4,5-benzenetetracarboxylic acid (H₄btec). The structure in each case adopts a one-dimensional motif featuring ditin macrocycles with 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) acting as the chelating ligand. For 1, the lattice water molecules in association with the framework form infinite T4(0)A(1) water chains. The organic hydrate, bipy ⋅ 6H₂O in 3 adopts a layered structure comprising T4(2)6(2) water tapes and trans-bipy. Dehydration of 2 to 2 a results in crystal structure transformation from centrosymmetric P2₁/c (in 2) to chiral P2₁2₁2₁ space group and reveals conformational changes in the ditin macrocycles from chair to boat form. The reversibility of this transformation has been supported by TGA, PXRD, and single-crystal X-ray studies.

Original language	English
Article number	e202200052
Journal	European Journal of Inorganic Chemistry
Volume	2022
Issue number	13
Early online date	17 Mar 2022
DOIs	https://doi.org/10.1002/ejic.202200052
Publication status	Published - 9 May 2022

Funding

This work is supported by CSIR, India [grant no.– 01(2651)/12/EMR‐II]. We are grateful to UGC, India, and IIT Delhi for providing senior research fellowships to A. Dubey, E. Jakhar and P. Chauhan. The authors thank DST‐FIST India for providing the grant for single crystal X‐ray instrument.

Keywords

Coordination polymers
Dimethyltin carboxylates
Reversible de-/rehydration
Structural transformation
Supramolecular assemblies

ASJC Scopus subject areas

Inorganic Chemistry

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10.1002/ejic.202200052

Cite this

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title = "Supramolecular Assemblies and Reversible De-/ Rehydration in One-Dimensional Dimethyltin Carboxylates",

abstract = "The study presents the synthesis and structural aspects of a new family of dimethyltin carboxylates, [(Me2Sn)2(btec)(bipy)(H2O)] ⋅ 4H2O (1), [Me2Sn(btec)0.5(bipy)]2 ⋅ H2O (2), [Me2Sn(btec)0.5(bipy)] ⋅ 3H2O ⋅ 0.5bipy (3) and [Me2Sn(btec)0.5(phen)] (4) derived from 1,2,4,5-benzenetetracarboxylic acid (H4btec). The structure in each case adopts a one-dimensional motif featuring ditin macrocycles with 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) acting as the chelating ligand. For 1, the lattice water molecules in association with the framework form infinite T4(0)A(1) water chains. The organic hydrate, bipy ⋅ 6H2O in 3 adopts a layered structure comprising T4(2)6(2) water tapes and trans-bipy. Dehydration of 2 to 2 a results in crystal structure transformation from centrosymmetric P21/c (in 2) to chiral P212121 space group and reveals conformational changes in the ditin macrocycles from chair to boat form. The reversibility of this transformation has been supported by TGA, PXRD, and single-crystal X-ray studies.",

keywords = "Coordination polymers, Dimethyltin carboxylates, Reversible de-/rehydration, Structural transformation, Supramolecular assemblies",

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AU - Shankar, Ravi

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AU - Chauhan, Priyanka

AU - Kociok-Köhn, Gabriele

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N2 - The study presents the synthesis and structural aspects of a new family of dimethyltin carboxylates, [(Me2Sn)2(btec)(bipy)(H2O)] ⋅ 4H2O (1), [Me2Sn(btec)0.5(bipy)]2 ⋅ H2O (2), [Me2Sn(btec)0.5(bipy)] ⋅ 3H2O ⋅ 0.5bipy (3) and [Me2Sn(btec)0.5(phen)] (4) derived from 1,2,4,5-benzenetetracarboxylic acid (H4btec). The structure in each case adopts a one-dimensional motif featuring ditin macrocycles with 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) acting as the chelating ligand. For 1, the lattice water molecules in association with the framework form infinite T4(0)A(1) water chains. The organic hydrate, bipy ⋅ 6H2O in 3 adopts a layered structure comprising T4(2)6(2) water tapes and trans-bipy. Dehydration of 2 to 2 a results in crystal structure transformation from centrosymmetric P21/c (in 2) to chiral P212121 space group and reveals conformational changes in the ditin macrocycles from chair to boat form. The reversibility of this transformation has been supported by TGA, PXRD, and single-crystal X-ray studies.

AB - The study presents the synthesis and structural aspects of a new family of dimethyltin carboxylates, [(Me2Sn)2(btec)(bipy)(H2O)] ⋅ 4H2O (1), [Me2Sn(btec)0.5(bipy)]2 ⋅ H2O (2), [Me2Sn(btec)0.5(bipy)] ⋅ 3H2O ⋅ 0.5bipy (3) and [Me2Sn(btec)0.5(phen)] (4) derived from 1,2,4,5-benzenetetracarboxylic acid (H4btec). The structure in each case adopts a one-dimensional motif featuring ditin macrocycles with 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) acting as the chelating ligand. For 1, the lattice water molecules in association with the framework form infinite T4(0)A(1) water chains. The organic hydrate, bipy ⋅ 6H2O in 3 adopts a layered structure comprising T4(2)6(2) water tapes and trans-bipy. Dehydration of 2 to 2 a results in crystal structure transformation from centrosymmetric P21/c (in 2) to chiral P212121 space group and reveals conformational changes in the ditin macrocycles from chair to boat form. The reversibility of this transformation has been supported by TGA, PXRD, and single-crystal X-ray studies.

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KW - Dimethyltin carboxylates

KW - Reversible de-/rehydration

KW - Structural transformation

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ER -

Supramolecular Assemblies and Reversible De-/ Rehydration in One-Dimensional Dimethyltin Carboxylates

Abstract

Funding

Keywords

ASJC Scopus subject areas

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Fourier Transform Infrared spectrometer (FT-IR)

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Supramolecular Assemblies and Reversible De-/ Rehydration in One-Dimensional Dimethyltin Carboxylates

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

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Fourier Transform Infrared spectrometer (FT-IR)

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