An orthogonal ferromagnetically coupled tetracopper(II) [2 × 2] homoleptic grid supported by four μ-alkoxido bridges

Atanu Jana; Saugata Konar; Kinsuk Das; Sangita Ray; James A. Golen; Arnold L. Rheingold; Joan Ribas; Mohamed Salah El Fallah; Susanta Kumar Kar

doi:10.1016/j.poly.2012.08.023

An orthogonal ferromagnetically coupled tetracopper(II) [2 × 2] homoleptic grid supported by four μ-alkoxido bridges

Atanu Jana, Saugata Konar, Kinsuk Das, Sangita Ray, James A. Golen, Arnold L. Rheingold, Joan Ribas, Mohamed Salah El Fallah, Susanta Kumar Kar

Division of System Semiconductor

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

5 Scopus citations

Abstract

A pyrimidyl-pyrazole based ditopic ligand N-[amino(pyridin-2-yl) methylidene]-1-(4,6-dimethylpyrimidin-2-yl)-5-methyl-1H-pyrazole-3- carbohydrazonic acid, PymPzOAP prepared by the reaction between pyrimidyl pyrazole 3-carbohydrazide and methyl ester of iminopicolinic acid, reacts with Cu(NO₃)₂·6H₂O to form a self-assembled, ferromagnetically coupled alkoxide bridged tetranuclear homoleptic Cu(II) ₄ [2 × 2] grid complex [Cu₄(PymPzOAP) ₄](NO₃)₄ (1). The complex has a central Cu ₄(μ-OR)₄ core involving four ligand molecules. All the Cu(II) centers have N₄O₂ coordination environment with distorted octahedral geometry. Intramolecular ferromagnetic interaction between Cu(II) centers (J = 4.94, S = 4/2) is the signature of the molecule.

Original language	English
Pages (from-to)	24-29
Number of pages	6
Journal	Polyhedron
Volume	47
Issue number	1
DOIs	https://doi.org/10.1016/j.poly.2012.08.023
State	Published - 26 Oct 2012

Keywords

Crystal structure
Ferromagnetic coupling
Polydentate hydrazone type ligand
Tetrcopper(II) [2×2] homoleptic grid

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10.1016/j.poly.2012.08.023

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title = "An orthogonal ferromagnetically coupled tetracopper(II) [2 × 2] homoleptic grid supported by four μ-alkoxido bridges",

abstract = "A pyrimidyl-pyrazole based ditopic ligand N-[amino(pyridin-2-yl) methylidene]-1-(4,6-dimethylpyrimidin-2-yl)-5-methyl-1H-pyrazole-3- carbohydrazonic acid, PymPzOAP prepared by the reaction between pyrimidyl pyrazole 3-carbohydrazide and methyl ester of iminopicolinic acid, reacts with Cu(NO3)2·6H2O to form a self-assembled, ferromagnetically coupled alkoxide bridged tetranuclear homoleptic Cu(II) 4 [2 × 2] grid complex [Cu4(PymPzOAP) 4](NO3)4 (1). The complex has a central Cu 4(μ-OR)4 core involving four ligand molecules. All the Cu(II) centers have N4O2 coordination environment with distorted octahedral geometry. Intramolecular ferromagnetic interaction between Cu(II) centers (J = 4.94, S = 4/2) is the signature of the molecule.",

keywords = "Crystal structure, Ferromagnetic coupling, Polydentate hydrazone type ligand, Tetrcopper(II) [2×2] homoleptic grid",

author = "Atanu Jana and Saugata Konar and Kinsuk Das and Sangita Ray and Golen, {James A.} and Rheingold, {Arnold L.} and Joan Ribas and {El Fallah}, {Mohamed Salah} and Kar, {Susanta Kumar}",

year = "2012",

month = oct,

day = "26",

doi = "10.1016/j.poly.2012.08.023",

language = "English",

volume = "47",

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journal = "Polyhedron",

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T1 - An orthogonal ferromagnetically coupled tetracopper(II) [2 × 2] homoleptic grid supported by four μ-alkoxido bridges

AU - Jana, Atanu

AU - Konar, Saugata

AU - Das, Kinsuk

AU - Ray, Sangita

AU - Golen, James A.

AU - Rheingold, Arnold L.

AU - Ribas, Joan

AU - El Fallah, Mohamed Salah

AU - Kar, Susanta Kumar

PY - 2012/10/26

Y1 - 2012/10/26

N2 - A pyrimidyl-pyrazole based ditopic ligand N-[amino(pyridin-2-yl) methylidene]-1-(4,6-dimethylpyrimidin-2-yl)-5-methyl-1H-pyrazole-3- carbohydrazonic acid, PymPzOAP prepared by the reaction between pyrimidyl pyrazole 3-carbohydrazide and methyl ester of iminopicolinic acid, reacts with Cu(NO3)2·6H2O to form a self-assembled, ferromagnetically coupled alkoxide bridged tetranuclear homoleptic Cu(II) 4 [2 × 2] grid complex [Cu4(PymPzOAP) 4](NO3)4 (1). The complex has a central Cu 4(μ-OR)4 core involving four ligand molecules. All the Cu(II) centers have N4O2 coordination environment with distorted octahedral geometry. Intramolecular ferromagnetic interaction between Cu(II) centers (J = 4.94, S = 4/2) is the signature of the molecule.

AB - A pyrimidyl-pyrazole based ditopic ligand N-[amino(pyridin-2-yl) methylidene]-1-(4,6-dimethylpyrimidin-2-yl)-5-methyl-1H-pyrazole-3- carbohydrazonic acid, PymPzOAP prepared by the reaction between pyrimidyl pyrazole 3-carbohydrazide and methyl ester of iminopicolinic acid, reacts with Cu(NO3)2·6H2O to form a self-assembled, ferromagnetically coupled alkoxide bridged tetranuclear homoleptic Cu(II) 4 [2 × 2] grid complex [Cu4(PymPzOAP) 4](NO3)4 (1). The complex has a central Cu 4(μ-OR)4 core involving four ligand molecules. All the Cu(II) centers have N4O2 coordination environment with distorted octahedral geometry. Intramolecular ferromagnetic interaction between Cu(II) centers (J = 4.94, S = 4/2) is the signature of the molecule.

KW - Crystal structure

KW - Ferromagnetic coupling

KW - Polydentate hydrazone type ligand

KW - Tetrcopper(II) [2×2] homoleptic grid

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U2 - 10.1016/j.poly.2012.08.023

DO - 10.1016/j.poly.2012.08.023

M3 - Article

AN - SCOPUS:84866168747

SN - 0277-5387

VL - 47

SP - 24

EP - 29

JO - Polyhedron

JF - Polyhedron

IS - 1

ER -

An orthogonal ferromagnetically coupled tetracopper(II) [2 × 2] homoleptic grid supported by four μ-alkoxido bridges

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Keywords

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