An intramolecular antiferromagnetically coupled pentanuclear homoleptic Mn(II) cluster: Synthesis, crystal structure, spectral and magnetic property

Saugata Konar; Atanu Jana; Kinsuk Das; Anamika Dhara; Sudipta Chatterjee; Luca M. Carrella; Eva Rentschler; Susanta Kumar Kar

doi:10.1016/j.poly.2013.01.047

An intramolecular antiferromagnetically coupled pentanuclear homoleptic Mn(II) cluster: Synthesis, crystal structure, spectral and magnetic property

Saugata Konar
, Atanu Jana
, Kinsuk Das
, Anamika Dhara
, Sudipta Chatterjee
, Luca M. Carrella
, Eva Rentschler
, Susanta Kumar Kar

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

2 Scopus citations

Abstract

A pyrazole based ditopic ligand 5(E)-5-methyl-N′-(pyridin-2- ylmethylene)-1H-pyrazole-3-carbohydrazide (PzOPyH), prepared by the reaction between 5-methylpyrazole-3-carbohydrazide and pyridine-2-carbaldehyde, reacts with Mn(ClO₄)₂·6H₂O to form a self-assembled, antiferromagnetically coupled alkoxide bridged pentanuclear Mn(II) homoleptic cluster complex [Mn₅(PzOPy)₆](ClO ₄)₄ (1). The complex has a central Mn₅(μ- O₆) core involving six ligand molecules. This pentanuclear core has a trigonal bipyramidal arrangement of Mn(II) atoms, where, the axial metal centers (Mn2 and Mn-2) have a N₃O₃ chromophore and the equatorial centers (Mn1, Mn-1 and Mn3) have N₄O₂ chromophore with distorted octahedral arrangement around the metal centers. Intramolecular antiferromagnetic interaction between Mn(II) centers (J = -1.42, S = 5/2) is the signature of the molecule.

Original language	English
Pages (from-to)	235-239
Number of pages	5
Journal	Polyhedron
Volume	53
DOIs	https://doi.org/10.1016/j.poly.2013.01.047
State	Published - 2013

Keywords

Antiferromagnetic coupling
Cluster
Manganese
Pyrazole derived ditopic ligand

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@article{01007049fc4b407e9e87181c74669a3a,

title = "An intramolecular antiferromagnetically coupled pentanuclear homoleptic Mn(II) cluster: Synthesis, crystal structure, spectral and magnetic property",

abstract = "A pyrazole based ditopic ligand 5(E)-5-methyl-N′-(pyridin-2- ylmethylene)-1H-pyrazole-3-carbohydrazide (PzOPyH), prepared by the reaction between 5-methylpyrazole-3-carbohydrazide and pyridine-2-carbaldehyde, reacts with Mn(ClO4)2·6H2O to form a self-assembled, antiferromagnetically coupled alkoxide bridged pentanuclear Mn(II) homoleptic cluster complex [Mn5(PzOPy)6](ClO 4)4 (1). The complex has a central Mn5(μ- O6) core involving six ligand molecules. This pentanuclear core has a trigonal bipyramidal arrangement of Mn(II) atoms, where, the axial metal centers (Mn2 and Mn-2) have a N3O3 chromophore and the equatorial centers (Mn1, Mn-1 and Mn3) have N4O2 chromophore with distorted octahedral arrangement around the metal centers. Intramolecular antiferromagnetic interaction between Mn(II) centers (J = -1.42, S = 5/2) is the signature of the molecule.",

keywords = "Antiferromagnetic coupling, Cluster, Manganese, Pyrazole derived ditopic ligand",

author = "Saugata Konar and Atanu Jana and Kinsuk Das and Anamika Dhara and Sudipta Chatterjee and Carrella, \{Luca M.\} and Eva Rentschler and Kar, \{Susanta Kumar\}",

year = "2013",

doi = "10.1016/j.poly.2013.01.047",

language = "English",

volume = "53",

pages = "235--239",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - An intramolecular antiferromagnetically coupled pentanuclear homoleptic Mn(II) cluster

T2 - Synthesis, crystal structure, spectral and magnetic property

AU - Konar, Saugata

AU - Jana, Atanu

AU - Das, Kinsuk

AU - Dhara, Anamika

AU - Chatterjee, Sudipta

AU - Carrella, Luca M.

AU - Rentschler, Eva

AU - Kar, Susanta Kumar

PY - 2013

Y1 - 2013

N2 - A pyrazole based ditopic ligand 5(E)-5-methyl-N′-(pyridin-2- ylmethylene)-1H-pyrazole-3-carbohydrazide (PzOPyH), prepared by the reaction between 5-methylpyrazole-3-carbohydrazide and pyridine-2-carbaldehyde, reacts with Mn(ClO4)2·6H2O to form a self-assembled, antiferromagnetically coupled alkoxide bridged pentanuclear Mn(II) homoleptic cluster complex [Mn5(PzOPy)6](ClO 4)4 (1). The complex has a central Mn5(μ- O6) core involving six ligand molecules. This pentanuclear core has a trigonal bipyramidal arrangement of Mn(II) atoms, where, the axial metal centers (Mn2 and Mn-2) have a N3O3 chromophore and the equatorial centers (Mn1, Mn-1 and Mn3) have N4O2 chromophore with distorted octahedral arrangement around the metal centers. Intramolecular antiferromagnetic interaction between Mn(II) centers (J = -1.42, S = 5/2) is the signature of the molecule.

AB - A pyrazole based ditopic ligand 5(E)-5-methyl-N′-(pyridin-2- ylmethylene)-1H-pyrazole-3-carbohydrazide (PzOPyH), prepared by the reaction between 5-methylpyrazole-3-carbohydrazide and pyridine-2-carbaldehyde, reacts with Mn(ClO4)2·6H2O to form a self-assembled, antiferromagnetically coupled alkoxide bridged pentanuclear Mn(II) homoleptic cluster complex [Mn5(PzOPy)6](ClO 4)4 (1). The complex has a central Mn5(μ- O6) core involving six ligand molecules. This pentanuclear core has a trigonal bipyramidal arrangement of Mn(II) atoms, where, the axial metal centers (Mn2 and Mn-2) have a N3O3 chromophore and the equatorial centers (Mn1, Mn-1 and Mn3) have N4O2 chromophore with distorted octahedral arrangement around the metal centers. Intramolecular antiferromagnetic interaction between Mn(II) centers (J = -1.42, S = 5/2) is the signature of the molecule.

KW - Antiferromagnetic coupling

KW - Cluster

KW - Manganese

KW - Pyrazole derived ditopic ligand

UR - https://www.scopus.com/pages/publications/84874404200

U2 - 10.1016/j.poly.2013.01.047

DO - 10.1016/j.poly.2013.01.047

M3 - Article

AN - SCOPUS:84874404200

SN - 0277-5387

VL - 53

SP - 235

EP - 239

JO - Polyhedron

JF - Polyhedron

ER -

An intramolecular antiferromagnetically coupled pentanuclear homoleptic Mn(II) cluster: Synthesis, crystal structure, spectral and magnetic property

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Keywords

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