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

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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@article{fa3da43866914125b6e2ab6d8cd0f4d2,

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",

pages = "24--29",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

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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

UR - https://www.scopus.com/pages/publications/84866168747

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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