Results 81 to 90 of about 147,619 (289)

Monoclinic modification of bis(μ2-pyridine-2,6-dicarboxylato)-κ4O2,N,O6:O6;κ4O2:O2,N,O6-bis[aquadibutyltin(IV)]

Acta Crystallographica Section E, 2011
The SnIV atom in the centrosymmetric dinuclear title compound, [Sn2(C4H9)4(C7H3NO4)2(H2O)2], exists in a trans-C2SnNO4 pentagonal–bipyramidal geometry. There are two half-molecules in the asymmetric unit that are completed by inversion symmetry.
Seik Weng Ng
doaj   +1 more source

Biferroic YCrO3

, 2005
YCrO3 which has a monoclinic structure, shows weak ferromagnetism below 140 K (TN) and a ferroelectric transition at 473 K accompanied by hysteresis.
Krupanidhi, S. B., Kundu, Asish K., Rao, C. N. R., Serrao, Claudy Rayan, Waghmare, Umesh V.   +4 more
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Monoclinic modification of 1,1,3,3,5,5-hexamethyl-cyclo-1,3,5-tristannathiane

Acta Crystallographica Section E, 2008
The asymmetric unit of the title compound, [Sn3(CH3)6S3], contains two molecules with twist-boat conformations. There are intermolecular S...H (2.929 Å), S...S (3.433 Å), S...C (3.465 Å) and C...H (2.898 Å ...
Nanhai Singh, Abhinav Kumar, Kieran C. Molloy, G. Kociok-Köhn   +3 more
doaj   +1 more source

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Monoclinic polymorph of 3,7-dimethyl-1-(5-oxohexyl)-3,7-dihydro-1H-purine-2,6-dione

Acta Crystallographica Section E, 2011
The structure of the title compound, pentoxifylline, C13H18N4O3, has been previously characterized as a triclinic polymorph [Pavelčík et al. (1989). Acta Cryst. C45, 836–837]. We have discovered the monoclinic form.
Dmitrijs Stepanovs, Anatoly Mishnev
doaj   +1 more source

Low-temperature phase diagram of Fe1+yTe

, 2013
We used low-temperature synchrotron x-ray diffraction to investigate the structural phase transitions of Fe1+yTe in the vicinity of a tricitical point in the phase diagram.
Koz, Cevriye, Rößler, Sahana, Schwarz, Ulrich, Tsirlin, Alexander A., Wirth, Steffen   +4 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Magnetism and Low-Temperature Magnetocaloric Effect in Gd₇(BO₃)(PO₄)₂O₆ Compound with Monoclinic Lattice

Applied Sciences
The development of magnetic refrigerants with both low-field responsiveness and a large magnetic entropy change in the sub-Kelvin temperature range remains a critical challenge for advancing cryogenic technologies.
Lu Tian, Xuetong He, Zhiwen Shen, Xinqiang Gao, Zhaojun Mo   +4 more
doaj   +1 more source

From antiferromagnetism to superconductivity in Fe 1+y(Te1-x,Sex) (0 < x < 0.20): a neutron powder diffraction analysis

, 2010
The nuclear and magnetic structure of Fe1+y(Te1-x,Sex) (0 < x < 0.20) compounds was analyzed between 2 K and 300 K by means of Rietveld refinement of neutron powder diffraction data.
A. Martinelli, A. Palenzona, C. Ferdeghini, C. Ritter, H. Okamoto, H. Okamoto, J. I. Langford, M. Affronte, M. Putti, M. R. Cimberle, M. Tropeano, T. D. Nguyen   +11 more
core   +1 more source