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Copper(2+) complexes of hydroxyoxidoborates. synthesis and characterization of two clusters Containing the hexaborate(2−) ligand: [Cu(NH2CH2CH2NEt2){B6O7(OH)6}].5H2O and [Cu(NH3)2{B6O7(OH)6 }]·2H2O

Copper(2+) complexes of hydroxyoxidoborates. synthesis and characterization of two clusters Containing the hexaborate(2−) ligand: [Cu(NH2CH2CH2NEt2){B6O7(OH)6}].5H2O and [Cu(NH3)2{B6O7(OH)6 }]·2H2O
Copper(2+) complexes of hydroxyoxidoborates. synthesis and characterization of two clusters Containing the hexaborate(2−) ligand: [Cu(NH2CH2CH2NEt2){B6O7(OH)6}].5H2O and [Cu(NH3)2{B6O7(OH)6 }]·2H2O

[Cu(NH 2 CH 2 CH 2 NEt 2 ){B 6 O 7 (OH) 6 }]·5H 2 O (1) and [Cu(NH 3 ) 2 {B 6 O 7 (OH) 6 }]·2H 2 O (2) have been obtained as crystalline materials from aqueous solutions of Dynamic Combinatorial Libraries (DCLs) originating from B(OH) 3 and appropriate Cu(II) amine complexes. These two Cu/O/B clusters are formed through self-assembly processes and contain tridentate hexaborate(2−)-κ 3 O ligands. Both compounds have been characterized by TGA/DSC, magnetic susceptibility measurements, IR spectroscopy, and single-crystal XRD studies. The intermolecular H-bond interactions between neighbouring hexaborate units are implicated in their templated synthesis. Compound 2 is a coordination polymer and stabilization is also gained through formation of an additional O–Cu coordinate bond. Steric congestion in 1 blocks formation of this bond resulting in insular complexes.

1-D coordination polymer, Copper(2+), Hexaborate(2−), Oxidoborate, Polyborate
1040-7278
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. (2019) Copper(2+) complexes of hydroxyoxidoborates. synthesis and characterization of two clusters Containing the hexaborate(2−) ligand: [Cu(NH2CH2CH2NEt2){B6O7(OH)6}].5H2O and [Cu(NH3)2{B6O7(OH)6 }]·2H2O. Journal of Cluster Science. (doi:10.1007/s10876-019-01519-6).

Record type: Article

Abstract

[Cu(NH 2 CH 2 CH 2 NEt 2 ){B 6 O 7 (OH) 6 }]·5H 2 O (1) and [Cu(NH 3 ) 2 {B 6 O 7 (OH) 6 }]·2H 2 O (2) have been obtained as crystalline materials from aqueous solutions of Dynamic Combinatorial Libraries (DCLs) originating from B(OH) 3 and appropriate Cu(II) amine complexes. These two Cu/O/B clusters are formed through self-assembly processes and contain tridentate hexaborate(2−)-κ 3 O ligands. Both compounds have been characterized by TGA/DSC, magnetic susceptibility measurements, IR spectroscopy, and single-crystal XRD studies. The intermolecular H-bond interactions between neighbouring hexaborate units are implicated in their templated synthesis. Compound 2 is a coordination polymer and stabilization is also gained through formation of an additional O–Cu coordinate bond. Steric congestion in 1 blocks formation of this bond resulting in insular complexes.

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e-pub ahead of print date: 25 February 2019
Keywords: 1-D coordination polymer, Copper(2+), Hexaborate(2−), Oxidoborate, Polyborate

Identifiers

Local EPrints ID: 429006
URI: https://eprints.soton.ac.uk/id/eprint/429006
ISSN: 1040-7278
PURE UUID: 2a991e7a-20e4-4850-84e6-e3c5ef5a4c9b
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

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Date deposited: 18 Mar 2019 17:30
Last modified: 20 Jul 2019 01:10

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