Publications related to L4Fe2As2Te1-xO4-yFy (L = Pr, Sm, Gd): A layered oxypnictide superconductor with T-c up to 45 K

Validating the model of a (3+1)-dimensional incommensurately modulated structure as generator of a family of compounds for the Eu2(MoO4)3 scheelite structure

Gervais Chapuis, Alla Arakcheeva, Philip Pattison, Jorge Martinez Garcia

The previously proposed model postulating that the incommensurately modulated KNd(MoO

_4

)

_2

structure can act as a generator of the scheelite family members is validated here by refining the crystal structure of europium molybdate, Eu

_2

(MoO

_4

)

_3

. ...

2009

Full Reconstruction of a Crystal Unit Cell Structure during Coherent Femtosecond Motion

Paul Beaud

We present a complete characterization of the unit cell dynamics of a laser-excited tellurium crystal using femtosecond x-ray diffraction. The analysis offers a quantitative measure of the unit cell dynamics without making any assumptions on the symmetry o ...

American Physical Society2009

The crystal structure of M. leprae ML2640c defines a large family of putative S-adenosylmethionine-dependent methyltransferases in mycobacteria

Stewart Cole

Mycobacterium leprae protein ML2640c belongs to a large family of conserved hypothetical proteins predominantly found in mycobacteria, some of them predicted as putative S-adenosylmethionine (AdoMet)-dependent methyltransferases (MTase). As part of a Struc ...

2007

Multiple twinning in cubic crystals: Geometric/algebraic study and its application for the identification of the Σ3n grain boundaries

Cyril Cayron

Multiple twinning in cubic crystals is represented geometrically by a three-dimensional fractal and algebraically by a groupoid. In this groupoid, the variant crystals are the objects, the misorientations between the variants are the operations, and the Σ3 ...

2007

A nearly planar water sheet sandwiched between strontium-imidazolium carboxylate coordination polymers

Paul Joseph Dyson, Zhaofu Fei, Dongbin Zhao

The crystal structure of a strontium-imidazolium polymeric material obtained from the reaction of zwitterionic 1,3-bis(carboxymethyl)-imidazolium with SrCO3 (2:1) in water is reported. The compound crystallized in the orthorhombic space group Pcc2 with a = ...

2005

Phase diagram of pseudobinary Pb(Yb1/2Nb1/2)O-3-Pb(Sc1/2Nb1/2)O-3 ceramic solid solution

Nava Setter, Ji Hyun Kim

Crystal structure and dielectric properties of (1-x)Pb(Yb1/2Nb1/2)O-3-xPb(Sc1/2Nb1/2)O-3 (PYN1-xPSNx) (0less than or equal toxless than or equal to0.60) solid solution have been studied, and its pseudobinary phase diagram has been determined. The low-tempe ...

2005

Experimental demonstration of the slow group velocity of light in two-dimensional coupled photonic crystal microcavity arrays

Hatice Altug

We recently proposed two-dimensional coupled photonic crystal microcavity arrays as a route to achieve a slow-group velocity of light (flat band) in all crystal directions. In this letter we present the experimental demonstration of such structures with a ...

2005

On the symmetry of optically isotropic modulated lazurites from the Baikal region

Gervais Chapuis

The incommensurately modulated twinned crystal structure of lazurite from the Baikal region is presented for the first time. The orthorhombic structure was solved in a pseudo cubic unit cell, a(cub) = 9.077(1) Angstrom, and in the (3 + 2)D superspace group ...

2004

YodA from Escherichia coli is a Metal-binding, Lipocalin-like Protein

We have determined the crystal structure of YodA, an Escherichia coli protein of unknown function. YodA had been identified under conditions of cadmium stress, and we confirm that it binds metals such as cadmium and zinc. We have also found nickel bound in ...

2003

Condensation of 2,3-Di(Methylidene)-7-Oxabicyclo[2.2.1]Heptane Derivatives into Dicarbonyl[Eta-3-Eta-3-Octa-2,6-Diene-1,8-Diyl]Iron Complexes with Nonacarbonyldiiron - Crystal-Structure of (1rs,2rs,3rs,4sr,5rs,6sr,1'rs,2'rs,3'rs,4'sr,5'rs,6'sr)-Dicarbonyl-((2,3 ,C-Eta-2',3',C-Eta)-2,2'-Ethylene-5,5',6,6'-Tetrakis[(Methanesulfonyloxy )-Methyl]-3,3'-Di(Methylidene)-Bis[7-Oxabicyclo[2.2.1]Hept-2-Yl)Iron

Pierre Vogel, Gervais Chapuis, Kurt Schenk

The reactions of [Fe2(CO)9] with 2-exo,3-exo-bis(chloromethyl)-5,6-di(methylidene)-7-oxabicyclo[2.2.1]hep tane (5) and with 5,6-di(methylidene)-7-oxabicyclo[2.2.1]heptane-2-exo,3-exo-dimethyl bis(methanesulfonate) (6) afforded, together with the correspond ...

1991

L4Fe2As2Te1-xO4-yFy (L = Pr, Sm, Gd): A layered oxypnictide superconductor with T-c up to 45 K

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Validating the model of a (3+1)-dimensional incommensurately modulated structure as generator of a family of compounds for the Eu2(MoO4)3 scheelite structure

Full Reconstruction of a Crystal Unit Cell Structure during Coherent Femtosecond Motion

The crystal structure of M. leprae ML2640c defines a large family of putative S-adenosylmethionine-dependent methyltransferases in mycobacteria

Multiple twinning in cubic crystals: Geometric/algebraic study and its application for the identification of the Σ3n grain boundaries

A nearly planar water sheet sandwiched between strontium-imidazolium carboxylate coordination polymers

Phase diagram of pseudobinary Pb(Yb1/2Nb1/2)O-3-Pb(Sc1/2Nb1/2)O-3 ceramic solid solution

Experimental demonstration of the slow group velocity of light in two-dimensional coupled photonic crystal microcavity arrays

On the symmetry of optically isotropic modulated lazurites from the Baikal region

YodA from Escherichia coli is a Metal-binding, Lipocalin-like Protein

Phase diagram of pseudobinary Pb(Yb1/2Nb1/2)O-3-Pb(Sc1/2Nb1/2)O-3 ceramic solid solution

Validating the model of a (3+1)-dimensional incommensurately modulated structure as generator of a family of compounds for the Eu2(MoO4)3 scheelite structure

A nearly planar water sheet sandwiched between strontium-imidazolium carboxylate coordination polymers

Multiple twinning in cubic crystals: Geometric/algebraic study and its application for the identification of the Σ3n grain boundaries

The crystal structure of M. leprae ML2640c defines a large family of putative S-adenosylmethionine-dependent methyltransferases in mycobacteria

YodA from Escherichia coli is a Metal-binding, Lipocalin-like Protein

Full Reconstruction of a Crystal Unit Cell Structure during Coherent Femtosecond Motion

Experimental demonstration of the slow group velocity of light in two-dimensional coupled photonic crystal microcavity arrays

On the symmetry of optically isotropic modulated lazurites from the Baikal region