Copper(II) complexes of three isomeric bis(tacn) ligands: Syntheses, structures and properties

Campbell J. Coghlan; Eva M. Campi; Stuart R. Batten; W. Roy Jackson; Milton T.W. Hearn

doi:10.1016/j.poly.2015.12.004

Copper(II) complexes of three isomeric bis(tacn) ligands: Syntheses, structures and properties

Campbell J. Coghlan, Eva M. Campi, Stuart R. Batten, W. Roy Jackson, Milton T.W. Hearn

School of Chemistry

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

5 Citations (Scopus)

Abstract

Two new isomeric bis(tacn) ligands, 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)-1-(hydroxymethyl)-benzene (HL^hyx) and 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)anisole (L^anx) have been synthesised. In addition, 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol (HL^ohx) was also synthesised in a considerably higher yield than the previously reported method. The ligands were reacted with two equivalents of Cu(NO₃)₂·3H₂O at pH 5 resulting in the formation of three binuclear complexes. The ligands L^anx and HL^hyx form complexes [Cu₂Cl₃(L)(H₂O)](PF₆) containing two unique Cu²⁺ centres coordinated to the ligand. In contrast, the phenolic HL^ohx ligand forms a bridged complex [Cu₂(μ-Cl)(L^ohx)](PF₆)₂, with the two Cu centres further linked by (μ-Cl) and (μ-O) bridges.

Original language	English
Pages (from-to)	246-252
Number of pages	7
Journal	Polyhedron
Volume	105
DOIs	https://doi.org/10.1016/j.poly.2015.12.004
Publication status	Published - 17 Feb 2016

Keywords

Aza-macrocycles
Copper(II) complexes
Crystal structures
Immobilised metal ion affinity chromatography
m-Xylene linkers

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10.1016/j.poly.2015.12.004

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@article{82166f92105547b1bb1570470d98bf67,

title = "Copper(II) complexes of three isomeric bis(tacn) ligands: Syntheses, structures and properties",

abstract = "Two new isomeric bis(tacn) ligands, 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)-1-(hydroxymethyl)-benzene (HLhyx) and 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)anisole (Lanx) have been synthesised. In addition, 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol (HLohx) was also synthesised in a considerably higher yield than the previously reported method. The ligands were reacted with two equivalents of Cu(NO3)2·3H2O at pH 5 resulting in the formation of three binuclear complexes. The ligands Lanx and HLhyx form complexes [Cu2Cl3(L)(H2O)](PF6) containing two unique Cu2+ centres coordinated to the ligand. In contrast, the phenolic HLohx ligand forms a bridged complex [Cu2(μ-Cl)(Lohx)](PF6)2, with the two Cu centres further linked by (μ-Cl) and (μ-O) bridges.",

keywords = "Aza-macrocycles, Copper(II) complexes, Crystal structures, Immobilised metal ion affinity chromatography, m-Xylene linkers",

author = "Coghlan, {Campbell J.} and Campi, {Eva M.} and Batten, {Stuart R.} and Jackson, {W. Roy} and Hearn, {Milton T.W.}",

year = "2016",

month = feb,

day = "17",

doi = "10.1016/j.poly.2015.12.004",

language = "English",

volume = "105",

pages = "246--252",

journal = "Polyhedron",

issn = "0277-5387",

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T1 - Copper(II) complexes of three isomeric bis(tacn) ligands

T2 - Syntheses, structures and properties

AU - Coghlan, Campbell J.

AU - Campi, Eva M.

AU - Batten, Stuart R.

AU - Jackson, W. Roy

AU - Hearn, Milton T.W.

PY - 2016/2/17

Y1 - 2016/2/17

N2 - Two new isomeric bis(tacn) ligands, 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)-1-(hydroxymethyl)-benzene (HLhyx) and 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)anisole (Lanx) have been synthesised. In addition, 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol (HLohx) was also synthesised in a considerably higher yield than the previously reported method. The ligands were reacted with two equivalents of Cu(NO3)2·3H2O at pH 5 resulting in the formation of three binuclear complexes. The ligands Lanx and HLhyx form complexes [Cu2Cl3(L)(H2O)](PF6) containing two unique Cu2+ centres coordinated to the ligand. In contrast, the phenolic HLohx ligand forms a bridged complex [Cu2(μ-Cl)(Lohx)](PF6)2, with the two Cu centres further linked by (μ-Cl) and (μ-O) bridges.

AB - Two new isomeric bis(tacn) ligands, 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)-1-(hydroxymethyl)-benzene (HLhyx) and 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)anisole (Lanx) have been synthesised. In addition, 2,6-bis(1,4,7-triazacyclonon-1-ylmethyl)-4-methylphenol (HLohx) was also synthesised in a considerably higher yield than the previously reported method. The ligands were reacted with two equivalents of Cu(NO3)2·3H2O at pH 5 resulting in the formation of three binuclear complexes. The ligands Lanx and HLhyx form complexes [Cu2Cl3(L)(H2O)](PF6) containing two unique Cu2+ centres coordinated to the ligand. In contrast, the phenolic HLohx ligand forms a bridged complex [Cu2(μ-Cl)(Lohx)](PF6)2, with the two Cu centres further linked by (μ-Cl) and (μ-O) bridges.

KW - Aza-macrocycles

KW - Copper(II) complexes

KW - Crystal structures

KW - Immobilised metal ion affinity chromatography

KW - m-Xylene linkers

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DO - 10.1016/j.poly.2015.12.004

M3 - Article

AN - SCOPUS:84954546525

SN - 0277-5387

VL - 105

SP - 246

EP - 252

JO - Polyhedron

JF - Polyhedron

ER -

Copper(II) complexes of three isomeric bis(tacn) ligands: Syntheses, structures and properties

Abstract

Keywords

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Multipurpose separation platforms for protein purification

Australian Synchrotron

Cite this

Copper(II) complexes of three isomeric bis(tacn) ligands: Syntheses, structures and properties

Abstract

Keywords

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Projects

Multipurpose separation platforms for protein purification

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Australian Synchrotron

Cite this