Publications related to Spin states (d electrons)

Efficient trapping of silver cations in a rare gas matrix: Ag3+ in argon

Mass selected cations of Ag-clusters are deposited, together with Ar seeded with CO

_2

(or other electron scavengers such as O

_2

, N

_2

O, or CCl

_4

), on a cold substrate, while being flooded with low energy electrons. Optical absorption measurements re ...

2007

Time-resolved x-ray absorption spectroscopy of transition metal complexes

Wojciech Gawelda

Electronic structure changes are at the origin of the making, breaking and transformation of bonds. These changes can be visualized by measuring the geometric structure in "real-time" during the course of a chemical reaction, a biological function or a phy ...

EPFL2006

Hyperfine interactions in aqueous solution of Cr3+: an ab initio molecular dynamics study

Lothar Helm, Oleg Yazyev

We performed an ab initio mol. dynamics simulation of the paramagnetic transition metal ion Cr3+ in aq. soln. Isotropic hyperfine coupling consts. between the electron spin of the chromium ion and nuclear spins of all water mols. have been detd. for instan ...

2006

Multifrequency EPR studies of zero field splitting of Gd(III) based MRI contrast agents in solids and liquids

Magnetic Resonance Imaging (MRI) offers an amazing number of ways to probe the human body. It is a wonderful symbiosis of engineering, science and medicine. The power of MRI is its ability to probe a variety of physical mechanisms that can then not only re ...

EPFL2006

NIR Lanthanide Luminescence by Energy Transfer from Appended Terpyridine-Boradiazaindacene Dyes

Rosario Scopelliti, Jean-Claude Bünzli

Mononuclear trivalent lanthanide complexes with formula [Ln(L)(NO3)3] [in which L=4,4-difluoro-8-(2:2;6:2-terpyridin-4-yl)-1,3,5,7-tetramethyl-2,6-diethyl-4-bora-3a,4a-diaza-s-indacene (Boditerpy)] are reported for Ln=Yb, Nd, Er, La and Gd. According to th ...

2006

Dégénérescence orbitale et ordre magnétique sur le réseau triangulaire

François Vernay

Compounds made of transition metal ions on a triangular lattice may have orbitally degenerate eg states. This is the case for LiNiO2 and NaNiO2 : the Ni3+ ions are in a low-spin state, leaving the last electron of the d-shell in the eg orbitals. In order t ...

EPFL2005

An electronegativity-induced spin repulsion effect

Alfredo Pasquarello

We present a spin delocalization effect in radical Si-containing systems, featuring a heteroatom of high electronegativity (such as N, O, or Cl) bonded to the unsaturated Si atom. We find that the higher the electronegativity of the heteroatom, the more th ...

2005

Photoluminescence of p-doped quantum wells with strong spin splitting

Benoît Marie Joseph Deveaud, Victoria Ciulin

Photoluminescence of p-type modulation doped (Cd,Mn)Te quantum wells is studied with carrier density up to 5 X 10(11) cm(-2) at various spin splittings. This splitting can be made larger than the characteristic energies of the system thanks to the giant Ze ...

2004

The complex between hydrogenase-maturation proteins HypC and HypD is an intermediate in the supply of cyanide to the active site iron of [NiFe]-hydrogenases

Melanie Blokesch

Carbamoylphosphate has been shown to be the educt for the synthesis of the CN ligands of the NiFe metal centre of hydrogenases from Escherichia coli. In the absence of carbamoylphosphate, cells accumulate a complex of two hydrogenase maturation proteins, n ...

2004

Highly Phosphorescence Iridium Complexes and their Application in Organic Light-Emitting Devices

Michael Graetzel, Mohammad Khaja Nazeeruddin, Libero Zuppiroli, Robin Humphry-Baker, Detlef Berner

A new series of iridium(III) mixed ligand complexes TBA[Ir(ppy)2(CN)2] (1), TBA[Ir(ppy)2(NCS)2] (2), TBA[Ir(ppy)2(NCO)2] (3), and [Ir(ppy)2(acac) (4) (ppy = 2-phenylpyridine; acac ...

2003

Spin states (d electrons)

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Efficient trapping of silver cations in a rare gas matrix: Ag3+ in argon

Time-resolved x-ray absorption spectroscopy of transition metal complexes

Hyperfine interactions in aqueous solution of Cr3+: an ab initio molecular dynamics study

Multifrequency EPR studies of zero field splitting of Gd(III) based MRI contrast agents in solids and liquids

NIR Lanthanide Luminescence by Energy Transfer from Appended Terpyridine-Boradiazaindacene Dyes

Dégénérescence orbitale et ordre magnétique sur le réseau triangulaire

An electronegativity-induced spin repulsion effect

Photoluminescence of p-doped quantum wells with strong spin splitting

The complex between hydrogenase-maturation proteins HypC and HypD is an intermediate in the supply of cyanide to the active site iron of [NiFe]-hydrogenases

Highly Phosphorescence Iridium Complexes and their Application in Organic Light-Emitting Devices

Efficient trapping of silver cations in a rare gas matrix: Ag3+ in argon

NIR Lanthanide Luminescence by Energy Transfer from Appended Terpyridine-Boradiazaindacene Dyes

Dégénérescence orbitale et ordre magnétique sur le réseau triangulaire

An electronegativity-induced spin repulsion effect

Multifrequency EPR studies of zero field splitting of Gd(III) based MRI contrast agents in solids and liquids

The complex between hydrogenase-maturation proteins HypC and HypD is an intermediate in the supply of cyanide to the active site iron of [NiFe]-hydrogenases

Hyperfine interactions in aqueous solution of Cr3+: an ab initio molecular dynamics study

Photoluminescence of p-doped quantum wells with strong spin splitting

Highly Phosphorescence Iridium Complexes and their Application in Organic Light-Emitting Devices

Time-resolved x-ray absorption spectroscopy of transition metal complexes