Supramolecular manganese(II) compounds influenced by conformational flexibility and rigidity of bis(4-pyridyl) containing bridging ligands

Chang Seop Hong; Young Sin You

doi:10.1016/j.ica.2004.01.028

Supramolecular manganese(II) compounds influenced by conformational flexibility and rigidity of bis(4-pyridyl) containing bridging ligands

Chang Seop Hong, Young Sin You

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

13 Citations (Scopus)

Abstract

A covalent-bonded one-dimensional (1D) chain, [Mn(bpe)₂(SCN) ₂]_n (1) [bpe=1,2-bis(4-pyridyl)ethane], and a hydrogen-bonded two-dimensional (2D) sheet, [Mn(tbp)₂(H ₂O)₂(SCN)₂] (2) [tbp=trans-1,2-bis(4-pyridyl) ethylene], have been prepared. Complex 1 can be viewed as a purely coordinative-bonded 1D motif doubly bridged by the bpe ligand that is a gauche conformational isomer with a large dihedral angle of 73.9°. The two bridging bpe ligands feature a shape of square with a dimension of 10.064 Å×9.776 Å. The compound 2 possesses non-covalent bonding forces of hydrogen bonds and π-π interactions responsible for the fabrication of the 2D architecture. Magnetic susceptibility data for 1 were fitted by employing the infinite chain model (H=-J∑S_i· S_i+1) to give parameters of J=-0.052 cm^-1 and g=2.00, indicating the presence of a weak anti-ferromagnetic coupling.

Original language	English
Pages (from-to)	2309-2314
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	357
Issue number	8
DOIs	https://doi.org/10.1016/j.ica.2004.01.028
Publication status	Published - 2004 Jun 10

Keywords

Crystal structures
Hydrogen bonds
Magnetic properties
Manganese(II) compounds
π-π Interactions

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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title = "Supramolecular manganese(II) compounds influenced by conformational flexibility and rigidity of bis(4-pyridyl) containing bridging ligands",

abstract = "A covalent-bonded one-dimensional (1D) chain, [Mn(bpe)2(SCN) 2]n (1) [bpe=1,2-bis(4-pyridyl)ethane], and a hydrogen-bonded two-dimensional (2D) sheet, [Mn(tbp)2(H 2O)2(SCN)2] (2) [tbp=trans-1,2-bis(4-pyridyl) ethylene], have been prepared. Complex 1 can be viewed as a purely coordinative-bonded 1D motif doubly bridged by the bpe ligand that is a gauche conformational isomer with a large dihedral angle of 73.9°. The two bridging bpe ligands feature a shape of square with a dimension of 10.064 {\AA}×9.776 {\AA}. The compound 2 possesses non-covalent bonding forces of hydrogen bonds and π-π interactions responsible for the fabrication of the 2D architecture. Magnetic susceptibility data for 1 were fitted by employing the infinite chain model (H=-J∑Si· Si+1) to give parameters of J=-0.052 cm-1 and g=2.00, indicating the presence of a weak anti-ferromagnetic coupling.",

keywords = "Crystal structures, Hydrogen bonds, Magnetic properties, Manganese(II) compounds, π-π Interactions",

author = "Hong, {Chang Seop} and You, {Young Sin}",

year = "2004",

month = jun,

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doi = "10.1016/j.ica.2004.01.028",

language = "English",

volume = "357",

pages = "2309--2314",

journal = "Inorganica Chimica Acta",

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TY - JOUR

T1 - Supramolecular manganese(II) compounds influenced by conformational flexibility and rigidity of bis(4-pyridyl) containing bridging ligands

AU - Hong, Chang Seop

AU - You, Young Sin

PY - 2004/6/10

Y1 - 2004/6/10

N2 - A covalent-bonded one-dimensional (1D) chain, [Mn(bpe)2(SCN) 2]n (1) [bpe=1,2-bis(4-pyridyl)ethane], and a hydrogen-bonded two-dimensional (2D) sheet, [Mn(tbp)2(H 2O)2(SCN)2] (2) [tbp=trans-1,2-bis(4-pyridyl) ethylene], have been prepared. Complex 1 can be viewed as a purely coordinative-bonded 1D motif doubly bridged by the bpe ligand that is a gauche conformational isomer with a large dihedral angle of 73.9°. The two bridging bpe ligands feature a shape of square with a dimension of 10.064 Å×9.776 Å. The compound 2 possesses non-covalent bonding forces of hydrogen bonds and π-π interactions responsible for the fabrication of the 2D architecture. Magnetic susceptibility data for 1 were fitted by employing the infinite chain model (H=-J∑Si· Si+1) to give parameters of J=-0.052 cm-1 and g=2.00, indicating the presence of a weak anti-ferromagnetic coupling.

AB - A covalent-bonded one-dimensional (1D) chain, [Mn(bpe)2(SCN) 2]n (1) [bpe=1,2-bis(4-pyridyl)ethane], and a hydrogen-bonded two-dimensional (2D) sheet, [Mn(tbp)2(H 2O)2(SCN)2] (2) [tbp=trans-1,2-bis(4-pyridyl) ethylene], have been prepared. Complex 1 can be viewed as a purely coordinative-bonded 1D motif doubly bridged by the bpe ligand that is a gauche conformational isomer with a large dihedral angle of 73.9°. The two bridging bpe ligands feature a shape of square with a dimension of 10.064 Å×9.776 Å. The compound 2 possesses non-covalent bonding forces of hydrogen bonds and π-π interactions responsible for the fabrication of the 2D architecture. Magnetic susceptibility data for 1 were fitted by employing the infinite chain model (H=-J∑Si· Si+1) to give parameters of J=-0.052 cm-1 and g=2.00, indicating the presence of a weak anti-ferromagnetic coupling.

KW - Crystal structures

KW - Hydrogen bonds

KW - Magnetic properties

KW - Manganese(II) compounds

KW - π-π Interactions

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JF - Inorganica Chimica Acta

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ER -

Supramolecular manganese(II) compounds influenced by conformational flexibility and rigidity of bis(4-pyridyl) containing bridging ligands

Abstract

Keywords

ASJC Scopus subject areas

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