Results 31 to 40 of about 75,364 (265)

Síntese e caracterização estrutural do ligante isatina-3-(N4-benziltiossemicarbazona) e do seu complexo de mercúrio(II) Synthesis and structural characterization of the ligand isatin-3-(N4-benzylthiosemicarbazone) and its mercury(II) complex

open access: yesQuímica Nova, 2010
The reaction of 4-(phenyl)thiosemicarbazide with isatin yielded a new ligand, isatin-3-(N4-benzylthiosemicarbazone). Isatin-3-(N4-benzylthiosemicarbazone) deprotonated in ethanol/KOH reacts with an ethanolic solution of Hg(NO3)2 to give a mercury complex.
Alexandra de Souza Fonseca   +7 more
doaj   +1 more source

A monoclinic polymorph of cysteamine hydrochloride

open access: yesActa Crystallographica Section E, 2010
The title compound (systematic name: 2-mercaptoethanaminium chloride), C2H8NS+·Cl−, the hydrochloride salt of cysteamine, in contrast to the previously reported triclinic polymorph [Kim et al. (2002). Polyhedron, 21, 225–228],
Saeed Ahmad   +2 more
doaj   +1 more source

(E)-6-(Furan-2-ylmethylidene)-6,7,8,9-tetrahydropyrido[2,1-b]quinazoline-11-thione

open access: yesIUCrData, 2020
A quinazolinthione, C17H14N2OS, was synthesized by the condensation reaction of 6,7,8,9-tetrahydro-11H-pyrido[2,1-b]quinazolin-11-thione with furfural.
Akmal Tojiboev   +4 more
doaj   +1 more source

Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction

open access: yes, 2012
The low-temperature crystal structure of Fe1.13Te, which exhibits an anomalous two-step magnetic transition, was clarified by the systematic x-ray diffraction measurements.
Bao   +28 more
core   +1 more source

Neutron Diffraction Study of Field Cooling Effects on Relaxor Ferroelectrics Pb[(Zn_{1/3} Nb_{2/3})_{0.92} Ti_{0.08}] O_{3} [PDF]

open access: yes, 2002
High-temperature (T) and high-electric-field (E) effects on Pb[(Zn_{1/3} Nb_{2/3})_{0.92} Ti_{0.08}]O_3 (PZN-8%PT) were studied comprehensively by neutron diffraction in the ranges 300 M_C transition via another monoclinic phase (M_A) as expected from a
B. Noheda   +22 more
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Structural, Growth and Optical Characterization of Guanidinium Sulphanilate (GSA) Single Crystal

open access: yesФізика і хімія твердого тіла
Guanidine Sulphanilate (GSA) single crystal was grown by slow evaporation growth method. Single crystal X-ray diffraction studies show that the crystal grows in a centro symmetric monoclinic system and its space group is P21/c.
R. Sreedevi   +4 more
doaj   +1 more source

Evidence for existence of Functional Monoclinic Phase in Sodium Niobate based Solid Solution by Powder Neutron Diffraction

open access: yes, 2018
We have carried out systematic temperature-dependent neutron diffraction measurements in conjunction with dielectric spectroscopy from 6 to 300 K for sodium niobate based compounds (1-x) NaNbO3 -xBaTiO3 (NNBTx).
Chaplot, S. L.   +5 more
core   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

X-ray structural insights and computational analysis of the compound 5-ethyl-4-[(4-morpholinobenzylidene)amino]-2,4-dihydro-3H-1,2,4-triazole-3-thione

open access: yesActa Crystallographica Section E: Crystallographic Communications
The title compound, C15H19N5OS, crystallizes in the monoclinic crystal system, space group P21/c. The molecule adopts a non-planar geometry. A significant feature of the structure is the puckered six-membered morpholine ring, which adopts a chair ...
Syed Nizamuddin   +5 more
doaj   +1 more source

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