Structures and magnetic properties of 4,6-diacetylresorcinate-bridged dinuclear copper(II) complexes

Ayako Takano, Masaaki Ohba, Hisashi Okawa

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Dinuclear Cu(II) complexes bridged by 4,6-diacetylresorcinate (dar2-), [Cu2(dar)(bpy)2]X2 (X = ClO4- (1), BF4- (2)) and [Cu2(dar)(phen)2]X2 (X = ClO4- (3), BF4- (4)) have been prepared and studied in relation to their crystal structures and magnetic properties. The X-ray crystallography indicates that 1 and 2 have a 1-D network arrangement of the dar-bridged dinuclear units, combined by the `out-of-plane' bond through the phenolic oxygen, whereas 3 has a discrete dinuclear structure. Cryomagnetic studies indicate a weak antiferromagnetic interaction (J = -20 to approximately -9.9 cm-1) between Cu(II) ions through the dar bridge.

Original languageEnglish
Pages (from-to)941-946
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume335
Publication statusPublished - Dec 1 1999
EventProceedings of the 1998 6th International Conference on Molecule Based Magnets (ICMM'98) - Seignosse, France
Duration: Sep 12 1998Sep 17 1998

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X ray crystallography
crystallography
Copper
Magnetic properties
Crystal structure
magnetic properties
copper
crystal structure
Oxygen
Ions
oxygen
ions
x rays
perchlorate

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

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title = "Structures and magnetic properties of 4,6-diacetylresorcinate-bridged dinuclear copper(II) complexes",
abstract = "Dinuclear Cu(II) complexes bridged by 4,6-diacetylresorcinate (dar2-), [Cu2(dar)(bpy)2]X2 (X = ClO4- (1), BF4- (2)) and [Cu2(dar)(phen)2]X2 (X = ClO4- (3), BF4- (4)) have been prepared and studied in relation to their crystal structures and magnetic properties. The X-ray crystallography indicates that 1 and 2 have a 1-D network arrangement of the dar-bridged dinuclear units, combined by the `out-of-plane' bond through the phenolic oxygen, whereas 3 has a discrete dinuclear structure. Cryomagnetic studies indicate a weak antiferromagnetic interaction (J = -20 to approximately -9.9 cm-1) between Cu(II) ions through the dar bridge.",
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T1 - Structures and magnetic properties of 4,6-diacetylresorcinate-bridged dinuclear copper(II) complexes

AU - Takano, Ayako

AU - Ohba, Masaaki

AU - Okawa, Hisashi

PY - 1999/12/1

Y1 - 1999/12/1

N2 - Dinuclear Cu(II) complexes bridged by 4,6-diacetylresorcinate (dar2-), [Cu2(dar)(bpy)2]X2 (X = ClO4- (1), BF4- (2)) and [Cu2(dar)(phen)2]X2 (X = ClO4- (3), BF4- (4)) have been prepared and studied in relation to their crystal structures and magnetic properties. The X-ray crystallography indicates that 1 and 2 have a 1-D network arrangement of the dar-bridged dinuclear units, combined by the `out-of-plane' bond through the phenolic oxygen, whereas 3 has a discrete dinuclear structure. Cryomagnetic studies indicate a weak antiferromagnetic interaction (J = -20 to approximately -9.9 cm-1) between Cu(II) ions through the dar bridge.

AB - Dinuclear Cu(II) complexes bridged by 4,6-diacetylresorcinate (dar2-), [Cu2(dar)(bpy)2]X2 (X = ClO4- (1), BF4- (2)) and [Cu2(dar)(phen)2]X2 (X = ClO4- (3), BF4- (4)) have been prepared and studied in relation to their crystal structures and magnetic properties. The X-ray crystallography indicates that 1 and 2 have a 1-D network arrangement of the dar-bridged dinuclear units, combined by the `out-of-plane' bond through the phenolic oxygen, whereas 3 has a discrete dinuclear structure. Cryomagnetic studies indicate a weak antiferromagnetic interaction (J = -20 to approximately -9.9 cm-1) between Cu(II) ions through the dar bridge.

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