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Oxidopolyborate chemistry: the self-assembled, templated, synthesis, and an XRD study of a 1-D coordination polymer, [Cu(en){B6O7(OH)6}].3H2O (en = 1,2-diaminoethane)

Oxidopolyborate chemistry: the self-assembled, templated, synthesis, and an XRD study of a 1-D coordination polymer, [Cu(en){B6O7(OH)6}].3H2O (en = 1,2-diaminoethane)
Oxidopolyborate chemistry: the self-assembled, templated, synthesis, and an XRD study of a 1-D coordination polymer, [Cu(en){B6O7(OH)6}].3H2O (en = 1,2-diaminoethane)

[Cu(en){B6O7(OH)6}].3H2O (1) (en = 1,2-diaminoethane), obtained as a crystalline solid in low yield (31%) after prolonged standing of an aqueous solution initially containing [Cu(en)2](OH)2 and B(OH)3 (1:7 ratio), was characterized by thermal analysis (TGA/DSC), 11B NMR and IR spectroscopy, powder XRD, and single-crystal XRD studies, and magnetic susceptibility measurements. The single-crystal X-ray diffraction revealed that the oxidoborate complex is a 1D coordination polymer with the hexaborate(2-) ligand bridging two hexacoordinate Cu(II) centers, in an alternating a fac-tridentate (κ3-O) and monodentate (κ1-O) arrangement. Cu-O coordination bonds and extensive H-bonding networks promote and stabilize the self-assembly of [Cu(en){B6O7(OH)6}].3H2O from the Dynamic Combinatorial Libraries of available reactants. [Cu(en){B6O7(OH)6}].3H2O is thermally decomposed to CuB6O10 in air at 700 °C.

1D coordination polymer, Copper(2+) complex, hexaborate(2), oxidoborate, polyborate
1042-6507
952-956
Altahan, Mohammed A.
a333d79b-2ef3-4c3f-86a2-519740d08a72
Beckett, Michael A.
5b021ef6-fa5c-4f6d-9998-3313558f0dc1
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Altahan, Mohammed A.
a333d79b-2ef3-4c3f-86a2-519740d08a72
Beckett, Michael A.
5b021ef6-fa5c-4f6d-9998-3313558f0dc1
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5

Altahan, Mohammed A., Beckett, Michael A., Coles, Simon J. and Horton, Peter N. (2020) Oxidopolyborate chemistry: the self-assembled, templated, synthesis, and an XRD study of a 1-D coordination polymer, [Cu(en){B6O7(OH)6}].3H2O (en = 1,2-diaminoethane). Phosphorus, Sulfur and Silicon and the Related Elements, 195 (11), 952-956. (doi:10.1080/10426507.2020.1804204).

Record type: Article

Abstract

[Cu(en){B6O7(OH)6}].3H2O (1) (en = 1,2-diaminoethane), obtained as a crystalline solid in low yield (31%) after prolonged standing of an aqueous solution initially containing [Cu(en)2](OH)2 and B(OH)3 (1:7 ratio), was characterized by thermal analysis (TGA/DSC), 11B NMR and IR spectroscopy, powder XRD, and single-crystal XRD studies, and magnetic susceptibility measurements. The single-crystal X-ray diffraction revealed that the oxidoborate complex is a 1D coordination polymer with the hexaborate(2-) ligand bridging two hexacoordinate Cu(II) centers, in an alternating a fac-tridentate (κ3-O) and monodentate (κ1-O) arrangement. Cu-O coordination bonds and extensive H-bonding networks promote and stabilize the self-assembly of [Cu(en){B6O7(OH)6}].3H2O from the Dynamic Combinatorial Libraries of available reactants. [Cu(en){B6O7(OH)6}].3H2O is thermally decomposed to CuB6O10 in air at 700 °C.

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e-pub ahead of print date: 25 September 2020
Published date: 1 November 2020
Keywords: 1D coordination polymer, Copper(2+) complex, hexaborate(2), oxidoborate, polyborate

Identifiers

Local EPrints ID: 444365
URI: http://eprints.soton.ac.uk/id/eprint/444365
ISSN: 1042-6507
PURE UUID: c5d8f548-c196-45d0-a2a5-cf0c565ac41d
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272
ORCID for Peter N. Horton: ORCID iD orcid.org/0000-0001-8886-2016

Catalogue record

Date deposited: 14 Oct 2020 16:31
Last modified: 26 Nov 2021 05:41

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Contributors

Author: Mohammed A. Altahan
Author: Michael A. Beckett
Author: Simon J. Coles ORCID iD
Author: Peter N. Horton ORCID iD

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