Journal ArticleDOI
The Magnetic Anisotropy and Electronic Structure of Binuclear Copper(II) Acetate Monohydrate
TLDR
The magnetic anisotropy of binuclear copper(II) acetate monohydrate has been determined by a null deflexion method at temperatures between 80 and 300 K.Abstract:
The magnetic anisotropy of binuclear copper(II) acetate monohydrate has been redetermined by a null deflexion method at temperatures between 80 and 300 K. The new data establish that all previously reported anisotropy measurements have been seriously in error, presumably due to difficulties in correctly identifying the principal crystal axes. The previous necessity to invoke temperature-dependent values for the exchange integral J$\_{\text{eff}}$ and the g-factors now disappears and the new experimental anisotropies conform closely to Bleaney & Bowers (1952 b) theory with constant values for the disposable parameters. The magnetic anisotropy is especially sensitive to anisotropy in the high-frequency term of the susceptibility expressions. This enables the controversial electronic spectrum to be assigned in terms of the ligand field transitions 11 000 cm$^{-1}$ (d$\_{z^{2}}$ $\leftarrow $ d$\_{x^{2}-y^{2}}$); 14 400 cm $^{-1}$ (d$\_{xz,yz}$ $\leftarrow $ d$\_{x^{2}-y^{2}}$); 17 000 cm $^{-1}$ (d$\_{xy}$ $\leftarrow $ d$_{x^{2}-y^{2}}$). The nature of the chemical bonding and exchange interaction is discussed.read more
Citations
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Journal ArticleDOI
Synthesis of New Adsorbent Copper(II) Terephthalate
Wasuke Mori,Fumie Inoue,Keiko Yoshida,Hirokazu Nakayama,Satoshi Takamizawa,Michihiko Kishita +5 more
TL;DR: In this article, the maximum amounts of absorption of gases were found to be 1.8, 1.9, 2.2, and 0.9 mole per one mole of the copper(II) salt for N2, Ar, O2 and Xe, respectively.
Journal ArticleDOI
Microporous Materials of Metal Carboxylates
TL;DR: In this paper, it was shown that rhodium(II) monocarboxylate bridged by pyrazine form stable micropores by self-assembly of infinite linear chain complexes.
Journal ArticleDOI
In Situ Monitoring of the Mechanosynthesis of the Archetypal Metal–Organic Framework HKUST-1 : Effect of Liquid Additives on the Milling Reactivity
Tomislav Stolar,Lisa Batzdorf,Stipe Lukin,Dijana Žilić,Cristina Motillo,Tomislav Friščić,Franziska Emmerling,Ivan Halasz,Krunoslav Užarević +8 more
TL;DR: It is shown here how the kinetics and mechanisms of the mechanochemical synthesis of HKUST-1 can be influenced by milling conditions and additives, yielding on occasion two new and previously undetected intermediate phases containing a mononuclear copper core, and that finally rearrange to form the HKust-1 architecture.
Journal ArticleDOI
Theoretical determination of the zero-field splitting in copper acetate monohydrate.
Rémi Maurice,Rémi Maurice,Kanthen Sivalingam,Dmitry Ganyushin,Nathalie Guihéry,Coen de Graaf,Coen de Graaf,Frank Neese +7 more
TL;DR: It is found that this coupling between spin-spin and spin-orbit couplings is actually ferromagnetic, providing important new insights into the physical origin of the zero-field-splitting parameters in copper dimers.
Journal ArticleDOI
Characterization of Microporous Copper(II) Dicarboxylates (Fumarate, Terephthalate, and trans-1,4-Cyclohexanedicarboxylate) by Gas Adsorption
TL;DR: In this article, some microporous coordination polymers have been synthesized from copper salts and dicarboxylic acids and the methane adsorption capacities of these polymers were measured under high pressure.
References
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Journal ArticleDOI
Anomalous Paramagnetism of Copper Acetate
Brebis Bleaney,K. D. Bowers +1 more
TL;DR: In this article, the paramagnetic resonance spectrum of copper acetate is anomalous in that it resembles that of an ion of spin 1, and its intensity decreases as the temperature is lowered.
Journal ArticleDOI
XXXIV. Notes on the molecular orbital treatment of the hydrogen molecule
TL;DR: In this paper, the molecular orbital treatment of the hydrogen molecule is discussed and discussed in detail, and a discussion of the relationship between the molecular orbit treatment and the physical properties of the molecule is presented.
Journal ArticleDOI
The π System of Binuclear Copper(II) and Chromium(II) Acetates
L. Dubicki,R. L. Martin +1 more
Journal ArticleDOI
Magnetic properties of some paramagnetic crystals at low temperatures
TL;DR: In this paper, the principal magnetic susceptibilities and anisotropies of a number of salts of the iron group have been measured from room temperature down to about 80° K. The results are discussed in the light of the crystalline field theory developed by Van Vleck, and Schlapp & Penney.