Synthesis and spectroscopic and X-ray structural characterisation of some para-substituted triaryltin(pentacarbonyl)manganese(I) complexes

2002 ◽  
Vol 329 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Dharamdat Christendat ◽  
Ivor Wharf ◽  
Anne-Marie Lebuis ◽  
Ian S. Butler ◽  
Denis F.R. Gilson
Keyword(s):  
X Ray ◽  
Structural Characterisation

Synthesis and Structural Characterisation of New Bifunctional o-Hydroxyacetophenones – Potential Linker Molecules for Coordinative Framework Construction

2013 ◽  
Vol 68 (3) ◽  
pp. 214-222 ◽  
Author(s):  
Jörg Hübscher ◽  
Michael Günthel ◽  
Robert Rosin ◽  
Wilhelm Seichter ◽  
Florian Mertens ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
X Ray ◽  
Structural Characterisation ◽  
Crystallographic Study ◽  
Copper Coordination ◽  
Resonance Assisted Hydrogen Bond ◽  
Intramolecular Hydrogen ◽  
Fitting In ◽  
Linker Molecules

Two new linker-type molecules 1a and 1b composed of o-hydroxyacetophenone coordinative groups attached to linear ethynylene or 1,4-phenylenediethynylene spacer units have been synthesised and structurally characterised. An X-ray crystallographic study for both compounds has shown structures with strong intramolecular hydrogen bonds fitting in the model of ‘Intramolecular Resonance Assisted Hydrogen Bond (IRHAB)’. Initial coordination experiments with Cu(II) were performed and the resulting materials characterised by PXRD. The similarity of the copper coordination between these compounds and copper(II) acetylacetonate complexes was demonstrated by XPS measurements. Based on the evidence of these studies, and on elemental analysis, the formation of the corresponding coordination polymers comprising Cu(II) and the linkers has been proposed

Applications of High-Resolution Powder X-Ray Diffraction

2007 ◽  
Vol 130 ◽  
pp. 7-14 ◽  
Author(s):  
Andrew N. Fitch
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Powder Diffraction ◽  
X Rays ◽  
X Ray Diffraction ◽  
Crystalline Materials ◽  
X Ray ◽  
Structural Characterisation ◽  
Pdf Analysis

The highly-collimated, intense X-rays produced by a synchrotron radiation source can be harnessed to build high-resolution powder diffraction instruments with a wide variety of applications. The general advantages of using synchrotron radiation for powder diffraction are discussed and illustrated with reference to the structural characterisation of crystalline materials, atomic PDF analysis, in-situ and high-throughput studies where the structure is evolving between successive scans, and the measurement of residual strain in engineering components.

Isomers of B20H26: structural characterisation by X-ray diffraction of 2,2′-Bi(nido-decaboranyl)

1979 ◽  
pp. 17-18 ◽  
Author(s):  
Norman N. Greenwood ◽  
John D. Kennedy ◽  
Walter S. McDonald ◽  
John Staves ◽  
Derek Taylorson
Keyword(s):  
X Ray Diffraction ◽  
X Ray ◽  
Structural Characterisation

scholarly journals First X-ray structural characterisation of host–guest interactions in tetra-tetrazole macrocycles

Tetrahedron ◽  
2009 ◽  
Vol 65 (38) ◽  
pp. 7942-7947 ◽  
Author(s):  
Andrew D. Bond ◽  
Adrienne Fleming ◽  
Jackie Gaire ◽  
Fintan Kelleher ◽  
John McGinley ◽  
...  
Keyword(s):  
X Ray ◽  
Structural Characterisation

scholarly journals Structural Characterisation and Mechanical FE Analysis of Conventional and M-Wire Ni-Ti Alloys Used in Endodontic Rotary Instruments

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Diogo Montalvão ◽  
Francisca Sena Alçada ◽  
Francisco Manuel Braz Fernandes ◽  
Sancho de Vilaverde-Correia
Keyword(s):  
Body Temperature ◽  
Mechanical Response ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Austenitic Phase ◽  
X Ray ◽  
Structural Characterisation ◽  
Working Temperature ◽  
Ti Alloys ◽  
Rotary Instruments

The purpose of this study is to understand how the M-Wire alloy conditions the mechanical flexibility of endodontic rotary files at body temperature.Two different rotary instruments, a Profile GT 20/.06 and a Profile GT Series X 20/.06, were selected due to their geometrical similarity and their different constituent alloy. GT series X files are made from M-Wire, a Ni-Ti alloy allegedly having higher flexibility at body temperature. Both files were analysed by X-Ray Diffraction and Differential Scanning Calorimetry to investigate phase transformations and the effects of working temperature on these different alloys. Mechanical behaviour was assessed by means of static bending and torsional Finite Element simulations, taking into account the nonlinear superelastic behaviour of Ni-Ti materials. It was found that GT files present austenitic phase at body temperature, whereas GT series X present R-phase at temperatures under 40°C with a potential for larger flexibility. For the same load conditions, simulations showed that the slight geometrical differences between the two files do not introduce great disagreement in the instruments’ mechanical response. It was confirmed that M-Wire increases the instrument’s flexibility, mainly due to the presence of R-phase at body temperature.

Structural characterisation of $(11{\bar 2}0)$ 4H-SiC substrates by cathodoluminescence and X-ray topography

2004 ◽  
Vol 27 (1-3) ◽  
pp. 231-233 ◽  
Author(s):  
P. Hidalgo ◽  
L. Ottaviani ◽  
H. Idrissi ◽  
M. Lancin ◽  
S. Martinuzzi ◽  
...  
Keyword(s):  
X Ray ◽  
Structural Characterisation
Sign in / Sign up

Export Citation Format

Share Document