A Three-Dimensional Ferrimagnet with a High Magnetic Transition Temperature (TC) of 53 K Based on a Chiral Molecule

Inoue, Katsuya; Imai, Hiroyuki; Ghalsasi, Prasanna S.; Kikuchi, Kôichi; Ohba, Masaaki; Ökawa, Hisashi; Yakhmi, J. V.

doi:10.1002/1521-3773(20011119)40:22<4242::aid-anie4242>3.0.co;2-h

Cited by 235 publications

(104 citation statements)

References 15 publications

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“…In this field, cyanobridged metal assemblites have been aggressively studied to discover novel functionalities. The hexacyanometalate ions, acting as good building units, have been successfully utilized to obtain a large number of one-, two-, and three-dimensional cyano-bridged compounds with high magnetic ordering temperature and interesting architectures [7][8][9][10][11]. Recently, octacyanometallate-based magnets have also drawn much attention.…”

Section: Introductionmentioning

confidence: 99%

A high-spin cyanide-bridged Mo6Mn9 cluster: crystal structure and magnetism

Ren

et al. 2009

Struct Chem

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A cyanide-bridged bimetallic octacyanomolybdate(V)-based polynuclear cluster, {Mn 9 II [Mo V (CN) 8 ] 6 (EtOH) 24 } Á 6EtOH Á 3i-C 3 H 7 OH Á 3H 2 O (1), has been prepared by self-assembling of [Mo(CN) 8 ] 3-and Mn 2? ions. The compound crystallized in the trigonal system with space group R-3 and cell dimensions of a = b = 26.182(15), c = 25.586(14) Å , c = 120°, and Z = 18. The structure of the complex consists of neutral cluster of 15 metal ions, in which all metal ions are linked by cyanide bridged ligands. Magnetic susceptibilities and magnetization measurements of the complex indicate that the cluster has an S = 39/2 ground state. The intracluster ferrimagnetic interaction has been characterized as well.Keywords Cyanide-bridged Á Octacyanomolybdate(V)-based Á Cluster Á Antiferromagnetic interaction Á Ferrimagnet

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Section: Introductionmentioning

confidence: 99%

A high-spin cyanide-bridged Mo6Mn9 cluster: crystal structure and magnetism

Ren

et al. 2009

Struct Chem

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“…Recently, there has been much interest in the construction of metal-organic frameworks (MOFs) due to their versatile structures and interesting topologies [1][2][3][4] as well as their potential applications as functional materials in the fields of molecular magnetism, catalysis, gas sorption and optoelectronic devices [5][6][7][8][9]. The most useful building blocks for constructing organic-inorganic hybrid MOFs are polycarboxylate and N-donor ligands.…”

Section: Introductionmentioning

confidence: 94%

Synthesis and structures of two cobalt(II) coordination networks formed from aromatic polycarboxylates and 1,4-bis(imidazole-1-ylmethyl)benzene

Liu

et al. 2008

Transition Met Chem

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Two Co(II) coordination polymers, [Co(Hbtc)-(bix)] n , (1) and [Co(1,4-bdc)(bix)H 2 O] n (2) (bix = 1,4-bis(imidazole-1-ylmethyl)benzene; H 3 btc = benzene-1,3, 5-tricarboxylic acid; 1,4-H 2 bdc = benzene-1,4-dicarboxylic acid) have been synthesized under hydrothermal conditions and structurally characterized. X-ray structure analysis reveals that in polymer 1, 2D infinite grid-like frameworks are interconnected by hydrogen-bond interactions to result in a 3D supramolecular architecture, in which the three carboxylate groups of the H 3 btc molecule adopt three different coordination modes. In polymer 2, 1,4-bdc ligands with cobalt atoms construct 1D zigzag chains which are bridged by bix ligands to form a 3D framework.

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“…In collaboration with Prof. Inoue's group from Japan, we designed a three-dimensional chiral, transparent ferrimagnet, K 0⋅4 [Cr(CN) 6 ][Mn(S)-pn](S)-pnH 0⋅6 with T c = 53 K, where (S)-pn stands for (S)-1,2-diaminopropane) (Inoue et al 2001), and there have been many additions to this class of bi-functional magnets, since.…”

Section: Negative Magnetization and Pole-reversalmentioning

confidence: 99%

Molecule-based magnets

Yakhmi

2009

Bull Mater Sci

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The conventional magnetic materials used in current technology, such as, Fe, Fe 2 O 3 , Cr 2 O 3 , SmCo 5 , Nd 2 Fe 14 B etc are all atom-based, and their preparation/processing require high temperature routes. Employing self-assembly methods, it is possible to engineer a bulk molecular material with long-range magnetic order, mainly because one can play with the weak intermolecular interactions. Since the first successful synthesis of molecular magnets in 1986, a large variety of them have been synthesized, which can be categorized on the basis of the chemical nature of the magnetic units involved: organic-, metal-based systems, heterobimetallic assemblies, or mixed organic-inorganic systems. The design of molecule-based magnets has also been extended to the design of poly-functional molecular magnets, such as those exhibiting second-order optical nonlinearity, liquid crystallinity, or chirality simultaneously with long-range magnetic order. Solubility, low density and biocompatibility are attractive features of molecular magnets. Being weakly coloured, unlike their opaque classical magnet 'cousins' listed above, possibilities of photomagnetic switching exist. Persistent efforts also continue to design the ever-elusive polymer magnets towards applications in industry. While providing a brief overview of the field of molecular magnetism, this article highlights some recent developments in it, with emphasis on a few studies from the author's own lab.

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A Three-Dimensional Ferrimagnet with a High Magnetic Transition Temperature (TC) of 53 K Based on a Chiral Molecule

Cited by 235 publications

References 15 publications

A high-spin cyanide-bridged Mo6Mn9 cluster: crystal structure and magnetism

A high-spin cyanide-bridged Mo6Mn9 cluster: crystal structure and magnetism

Synthesis and structures of two cobalt(II) coordination networks formed from aromatic polycarboxylates and 1,4-bis(imidazole-1-ylmethyl)benzene

Molecule-based magnets

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