Reaction behaviour of dinuclear copper(I) complexes with m-xylyl-based ligands towards dioxygen

Simon P. Foxon; Diana Utz; Jörg Astner; Siegfried Schindler; Florian Thaler; Frank W. Heinemann; Günter Liehr; Jhumpa Mukherjee; V. Balamurugan; Debalina Ghosh; Rabindranath Mukherjee

Reaction behaviour of dinuclear copper(I) complexes with m-xylyl-based ligands towards dioxygen

Simon P. Foxon, Diana Utz, Jörg Astner, Siegfried Schindler, Florian Thaler, Frank W. Heinemann, Günter Liehr, Jhumpa Mukherjee, V. Balamurugan, Debalina Ghosh, Rabindranath Mukherjee

Istituto Europeo di Oncologia

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

Abstract

Intramolecular ligand hydroxylation was observed during the reactions of dioxygen with the dicopper(I) complexes of the ligands L¹ (L ¹ = α,ά-bis[(2-pyridylethyl)amino]-m-xylene) and L³ (L³ = α,ά-bis[N-(2-pyridylethyl)-N- (2-pyridylmethyl)amino]-m-xylene). The dinuclear copper(I) complex [Cu ₂L³](ClO₄)₂ (3) and the dicopper(II) complex [Cu₂(L¹-O)(OH)(ClO₄)]ClO₄ (1) were characterized by single-crystal X-ray structure analysis. Furthermore, phenolatebridged complexes were synthesized with the ligand L²-OH (structurally characterized [Cu₂(L²-O)Cl₃] (7) with L² = α,ά-bis[N-methyl-N-(2-pyridylethyl) amino]-m-xylene; synthesized from the reaction between [Cu₂(L ²-O)(OH)](ClO₄)₂ (2) and Cl^-) and Me-L³-OH: [Cu₂(Me-L³-O)(μ-X)](ClO ₄)₂·nH₂O (Me-L³-OH = 2,6-bis[N-(2-pyridylethyl)-N-(2-pyridylmethyl)amino]-4-methylphenol and X = C₃H₃N₂ ^- (prz) (4), MeCO ₂ ^- (5) and N₃ ^- (6)). The magnetochemical characteristics of compounds 4-7 were determined by temperature-dependent magnetic studies, revealing their antiferromagnetic behaviour [-2J(in cm^-1) values: -92 for 4, -86 for 5 and -88 for 6; -374 for 7].

Original language	English
Pages (from-to)	2321-2328
Number of pages	8
Journal	Dalton Transactions
Issue number	15
Publication status	Published - Aug 7 2004

ASJC Scopus subject areas

Chemistry(all)

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Reaction behaviour of dinuclear copper(I) complexes with m-xylyl-based ligands towards dioxygen. / Foxon, Simon P.; Utz, Diana; Astner, Jörg; Schindler, Siegfried; Thaler, Florian; Heinemann, Frank W.; Liehr, Günter; Mukherjee, Jhumpa; Balamurugan, V.; Ghosh, Debalina; Mukherjee, Rabindranath.

In: Dalton Transactions, No. 15, 07.08.2004, p. 2321-2328.

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

@article{8811ad18537a4137a8cf67e6b962335d,

title = "Reaction behaviour of dinuclear copper(I) complexes with m-xylyl-based ligands towards dioxygen",

abstract = "Intramolecular ligand hydroxylation was observed during the reactions of dioxygen with the dicopper(I) complexes of the ligands L1 (L 1 = α,ά-bis[(2-pyridylethyl)amino]-m-xylene) and L3 (L3 = α,ά-bis[N-(2-pyridylethyl)-N- (2-pyridylmethyl)amino]-m-xylene). The dinuclear copper(I) complex [Cu 2L3](ClO4)2 (3) and the dicopper(II) complex [Cu2(L1-O)(OH)(ClO4)]ClO4 (1) were characterized by single-crystal X-ray structure analysis. Furthermore, phenolatebridged complexes were synthesized with the ligand L2-OH (structurally characterized [Cu2(L2-O)Cl3] (7) with L2 = α,ά-bis[N-methyl-N-(2-pyridylethyl) amino]-m-xylene; synthesized from the reaction between [Cu2(L 2-O)(OH)](ClO4)2 (2) and Cl-) and Me-L3-OH: [Cu2(Me-L3-O)(μ-X)](ClO 4)2·nH2O (Me-L3-OH = 2,6-bis[N-(2-pyridylethyl)-N-(2-pyridylmethyl)amino]-4-methylphenol and X = C3H3N2 - (prz) (4), MeCO 2 - (5) and N3 - (6)). The magnetochemical characteristics of compounds 4-7 were determined by temperature-dependent magnetic studies, revealing their antiferromagnetic behaviour [-2J(in cm-1) values: -92 for 4, -86 for 5 and -88 for 6; -374 for 7].",

author = "Foxon, {Simon P.} and Diana Utz and J{\"o}rg Astner and Siegfried Schindler and Florian Thaler and Heinemann, {Frank W.} and G{\"u}nter Liehr and Jhumpa Mukherjee and V. Balamurugan and Debalina Ghosh and Rabindranath Mukherjee",

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language = "English",

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T1 - Reaction behaviour of dinuclear copper(I) complexes with m-xylyl-based ligands towards dioxygen

AU - Foxon, Simon P.

AU - Utz, Diana

AU - Astner, Jörg

AU - Schindler, Siegfried

AU - Thaler, Florian

AU - Heinemann, Frank W.

AU - Liehr, Günter

AU - Mukherjee, Jhumpa

AU - Balamurugan, V.

AU - Ghosh, Debalina

AU - Mukherjee, Rabindranath

PY - 2004/8/7

Y1 - 2004/8/7

N2 - Intramolecular ligand hydroxylation was observed during the reactions of dioxygen with the dicopper(I) complexes of the ligands L1 (L 1 = α,ά-bis[(2-pyridylethyl)amino]-m-xylene) and L3 (L3 = α,ά-bis[N-(2-pyridylethyl)-N- (2-pyridylmethyl)amino]-m-xylene). The dinuclear copper(I) complex [Cu 2L3](ClO4)2 (3) and the dicopper(II) complex [Cu2(L1-O)(OH)(ClO4)]ClO4 (1) were characterized by single-crystal X-ray structure analysis. Furthermore, phenolatebridged complexes were synthesized with the ligand L2-OH (structurally characterized [Cu2(L2-O)Cl3] (7) with L2 = α,ά-bis[N-methyl-N-(2-pyridylethyl) amino]-m-xylene; synthesized from the reaction between [Cu2(L 2-O)(OH)](ClO4)2 (2) and Cl-) and Me-L3-OH: [Cu2(Me-L3-O)(μ-X)](ClO 4)2·nH2O (Me-L3-OH = 2,6-bis[N-(2-pyridylethyl)-N-(2-pyridylmethyl)amino]-4-methylphenol and X = C3H3N2 - (prz) (4), MeCO 2 - (5) and N3 - (6)). The magnetochemical characteristics of compounds 4-7 were determined by temperature-dependent magnetic studies, revealing their antiferromagnetic behaviour [-2J(in cm-1) values: -92 for 4, -86 for 5 and -88 for 6; -374 for 7].

AB - Intramolecular ligand hydroxylation was observed during the reactions of dioxygen with the dicopper(I) complexes of the ligands L1 (L 1 = α,ά-bis[(2-pyridylethyl)amino]-m-xylene) and L3 (L3 = α,ά-bis[N-(2-pyridylethyl)-N- (2-pyridylmethyl)amino]-m-xylene). The dinuclear copper(I) complex [Cu 2L3](ClO4)2 (3) and the dicopper(II) complex [Cu2(L1-O)(OH)(ClO4)]ClO4 (1) were characterized by single-crystal X-ray structure analysis. Furthermore, phenolatebridged complexes were synthesized with the ligand L2-OH (structurally characterized [Cu2(L2-O)Cl3] (7) with L2 = α,ά-bis[N-methyl-N-(2-pyridylethyl) amino]-m-xylene; synthesized from the reaction between [Cu2(L 2-O)(OH)](ClO4)2 (2) and Cl-) and Me-L3-OH: [Cu2(Me-L3-O)(μ-X)](ClO 4)2·nH2O (Me-L3-OH = 2,6-bis[N-(2-pyridylethyl)-N-(2-pyridylmethyl)amino]-4-methylphenol and X = C3H3N2 - (prz) (4), MeCO 2 - (5) and N3 - (6)). The magnetochemical characteristics of compounds 4-7 were determined by temperature-dependent magnetic studies, revealing their antiferromagnetic behaviour [-2J(in cm-1) values: -92 for 4, -86 for 5 and -88 for 6; -374 for 7].

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JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

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Reaction behaviour of dinuclear copper(I) complexes with m-xylyl-based ligands towards dioxygen

Abstract

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