601. The magnetic properties of some d 4-complexes

Earnshaw, A.; Figgis, B. N.; Lewis, Jack; Peacock, R. D.

doi:10.1039/jr9610003132

Cited by 92 publications

(54 citation statements)

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“…This behavior is like that observed previously for Re(II1) in a close to octahedral environment (13) and the magnitude of the magnetic susceptibility lies in the range 120&1900 x lo-, c.g.s. units observed previously.…”

Section: Resultssupporting

confidence: 68%

Studies of β-Diketone Complexes of Rhenium. I. Trispentane-2,4-dionatorhenium(III) and Tris(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)rhenium(III)

Courrier¹,

Förster²,

Lock³

et al. 1972

Can. J. Chem.

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Pure samples2 of Re(hfac), and Re(acac), have been prepared and their physical properties studied by ultraviolet-visible and infrared spectroscopy, mass spectrometry, magnetic susceptibility measurements, and X-ray diffraction. The compounds are monomeric and the physical properties may be explained if the rhenium atom sits in an essentially octahedral ligand field. Re(hfac), has a hexagonal unit cell and the acetylacetone complex adopts the monoclinic cell of the a-form of the three typical crystal structure types which Astbury (1) observed for trispentane-2,4-dionatometal(II1) compounds. The properties observed for trispentane-2,4-dionatorhenium(lI1) differ from those reported previously (2, 3). The difficulties experienced in obtaining pure Re(C5H702), were caused by the ease with which the material is oxidized.On a prCparC des Cchantillons purs2 de Re(hfac), et Re(acac), et ttudit leurs proprittts physiques par la spectroscopie ultraviolette-visible et infrarouge, la spectrometric de masse, des mesures de susceptibilitt magnttique et la diffraction de rayons-)<. Les composes sont monomeriques et on peut expliquer ies proprittts physiques si I'atome de rhenium se trouve dans un champ de ligand essentiellement octatdrique. Re(hfac), posstde une maille hexagonale et le complexe acttylacetone adopte la maille monoclinique de forme a des trois genres de structure cristalline typiques que Astbury (I) a observt pour les composts trispentane-2,4-dionatomttalliques. Les proprittts observkes pour le trispentane-2,4-dionatorht.nium(II1) diffirent de celles rapporttes prtctdemment (2, 3). Les difficultts rencontrtes pour obtenir le Re(C5H702), pur furent caustes par la facilitt avec laquelle le matCriel est oxydt.

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Section: Resultssupporting

confidence: 68%

Studies of β-Diketone Complexes of Rhenium. I. Trispentane-2,4-dionatorhenium(III) and Tris(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)rhenium(III)

Courrier¹,

Förster²,

Lock³

et al. 1972

Can. J. Chem.

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“…tered for hexahalogeno complexes of Ru(II1) (10,16). In any event the data suggest magnetically dilute complexes in both cases.…”

Section: Magnetic Propertiesmentioning

confidence: 77%

Fluorosulfates of the noble metals. Part 6. Synthesis and magnetic properties of fluorosulfato compounds of ruthenium

Leung¹,

Aubke²

1984

Can. J. Chem.

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“…The associated energy scale ζ SO becomes increasingly important for heavier elements (with an approximate ζ SO ∝ Z 4 dependence on the atomic number Z ), which then have to be treated within a relativistic framework. Whereas these effects are largely neglected in cuprates, where ζ SO (Cu 2+ ) ∼ 20 − 30 meV, they are important in ruthenates and rhodates (and even more in 5d materials, as we will see later), where ζ SO (Ru 4+ ) = 161 meV and ζ SO (Rh 4+ ) = 191 meV [118]. Furthermore, in 4d systems correlation effects continue to play a role, hence these systems are commonly classified as correlated relativistic metals.…”

Section: Correlated Relativistic Metals: Spin-orbit Coupled 4d -Tmosmentioning

confidence: 99%

ARPES: A Probe of Electronic Correlations

Comin

Damascelli

2014

Springer Series in Solid-State Sciences

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Abstract. Angle-resolved photoemission spectroscopy (ARPES) is one of the most direct methods of studying the electronic structure of solids. By measuring the kinetic energy and angular distribution of the electrons photoemitted from a sample illuminated with sufficiently high-energy radiation, one can gain information on both the energy and momentum of the electrons propagating inside a material. This is of vital importance in elucidating the connection between electronic, magnetic, and chemical structure of solids, in particular for those complex systems which cannot be appropriately described within the independent-particle picture. Among the various classes of complex systems, of great interest are the transition metal oxides, which have been at the center stage in condensed matter physics for the last four decades. Following a general introduction to the topic, we will lay the theoretical basis needed to understand the pivotal role of ARPES in the study of such systems. After a brief overview on the state-of-the-art capabilities of the technique, we will review some of the most interesting and relevant case studies of the novel physics revealed by ARPES in 3d -, 4d -and 5d -based oxides.

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601. The magnetic properties of some d 4-complexes

Cited by 92 publications

References 0 publications

Studies of β-Diketone Complexes of Rhenium. I. Trispentane-2,4-dionatorhenium(III) and Tris(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)rhenium(III)

Studies of β-Diketone Complexes of Rhenium. I. Trispentane-2,4-dionatorhenium(III) and Tris(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)rhenium(III)

Fluorosulfates of the noble metals. Part 6. Synthesis and magnetic properties of fluorosulfato compounds of ruthenium

ARPES: A Probe of Electronic Correlations

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