نتایج جستجو برای: single crystal x ray diffraction

تعداد نتایج: 1611569  

تجبر, ناصر,

Single crystals of CdTe were grown by the sublimation and condensation technique in a silica, under an argon gas now, and also by alloing cadmium tcJloride transport within an evacuated silica ampoule. X-ray powder diffraction patlerns prepared from each group of grown crys tals showed the crystal structure of the examined samples to be zinc-blend race-cent red cubic. Transmission electr...

Journal: :Acta crystallographica. Section A, Foundations of crystallography 2013
C J Humphreys

Bragg's second law, which deserves to be more widely known, is recounted. The significance of Bragg's law in electron diffraction and microscopy is then discussed, with particular emphasis on differences between X-ray and electron diffraction. As an example of such differences, the critical voltage effect in electron diffraction is described. It is then shown that the lattice imaging of crystal...

2008
S. A. Martin Britto Dhas G. Bhagavannarayana S. Natarajan

The single crystals of the NLO material, L-Alaninium maleate were grown by using the submerged seed solution method. The identity of the crystal was confirmed by single crystal X-ray diffraction. The crystalline perfection was analyzed using high resolution X-ray diffraction and it was found that the crystalline perfection is quite good. The values of the laser damage threshold and the Vicker’s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1387

چکیده ندارد.

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2012
Masatoshi Maeki Saori Yoshizuka Hiroshi Yamaguchi Masahide Kawamoto Kenichi Yamashita Hiroyuki Nakamura Masaya Miyazaki Hideaki Maeda

We describe the technical aspects of the in-situ X-ray diffraction of a protein crystal prepared by a nanodroplet-based crystallization method. We were able to obtain diffraction patterns from a crystal grown in a capillary without any manipulation. Especially in our experimental approach, the crystals that moved to the nanodroplet interface were fixed strongly enough to carry out X-ray diffr...

تجبر , ناصر, طباطبایی یزدی, شکوفه, علی نژاد , محمدرضا,

  Cd0.96Zn0.04Te crystals were grown using vapor phase gas transport method (VPGT). The results show that dendritic crystals with grain size up to 3.5 mm can be grown with this technique. X-ray diffraction and Laue back-reflection patterns show that dendritic crystals are single-phase, whose single crystal grains are randomly oriented with respect to the gas-transport axis. Electrical measureme...

Journal: :journal of nanostructures 0
xu liu school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china yan yang school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china yunfei han school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china lihong wang school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china gang chen school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china xuechun xiao school of materials science and engineering, yunnan university, 650091 kunming, people’s republic of china yude wang

single crystal zno microrods are deposited on the surface of zn plate through corrosion of zn plate by h2o2, which is a green neutral reagent and easy to transform to h2o and o2. the structure and morphology of the obtained zno microrods were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem) and electron diffraction. a thermodyn...

Journal: :Dalton transactions 2016
Massimo Cametti Ilaria Bargigia Javier Martí-Rujas

Upon guest CHCl3 release, the one-dimensional (1D) coordination polymer ·CHCl3 gives rise to a non-porous structure, , following a unit cell volume reduction of ca. 22%. Due to the considerable structural transformation, the single crystal does not maintain its integrity, and therefore the structure determination has been carried out by combining single crystal X-ray diffraction and ab initio X...

Journal: :Dalton transactions 2009
Sylvie Pailloux Cornel Edicome Shirima Alisha D Ray Eileen N Duesler Karen Ann Smith Robert T Paine John R Klaehn Michael E McIlwain Benjamin P Hay

A synthetic route for the formation of 2-[bis(2-trifluoromethylphenyl)phosphinoylmethyl]pyridine N-oxide (1c) and 2-[bis(3,5-trifluoromethylphenyl)phosphinoylmethyl]pyridine N-oxide (1d) was developed and the new ligands characterized by spectroscopic methods and single-crystal X-ray diffraction analyses. The coordination chemistry of 1c was examined with Yb(NO3)3 and the molecular structure of...

2017
A. Abboud C. Kirchlechner J. Keckes T. Conka Nurdan S. Send J. S. Micha O. Ulrich R. Hartmann L. Strüder U. Pietsch

The full strain and stress tensor determination in a triaxially stressed single crystal using X-ray diffraction requires a series of lattice spacing measurements at different crystal orientations. This can be achieved using a tunable X-ray source. This article reports on a novel experimental procedure for single-shot full strain tensor determination using polychromatic synchrotron radiation wit...

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