Journal ArticleDOI
A semi-empirical method of absorption correction
TLDR
An extension of Furnas's method is described in this paper, where the variation of intensity of an axial reflection as the crystal is rotated about the goniometer axis is used to give a curve of relative transmission T against azimuthal angle ϕ for the corresponding reciprocal lattice level.Abstract:
An extension of Furnas's method is described. The variation of intensity of an axial reflection as the crystal is rotated about the goniometer axis is used to give a curve of relative transmission T against azimuthal angle ϕ for the corresponding reciprocal lattice level. Transmission coefficients for any general reflexion hkl are then given approximately by T(hkl) = [T(ϕinc) + T(ϕret)]/2 where ϕinc and ϕret are the azimuthal angles of the incident and reflected beams. Equations are derived for (ϕinc and ϕret and the accuracy of the method is discussed.read more
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Journal ArticleDOI
The structures of hexagonal phases in Mg-Zn-RE (RE = Sm and Gd) alloys
TL;DR: The structure of hexagonal MgZnRE phases of Mg 28.3 Zn 65.2 Sm 6.7, were determined by single crystal X-ray structural analysis.
Journal ArticleDOI
Organometalloidal derivatives of the transition metals: XI. Synthesis and crystal structures of Ph3GeSiMe3 and Ph3GeSiMe2Fe(CO)2(η5-C5H5)☆
TL;DR: Ph 3 GeSiMe 3 and Ph 3 GSiMe 2 Fe(CO) 2 (η 5 -C 5 H 5 ) have been synthesized and their crystal structures determined as mentioned in this paper.
Journal ArticleDOI
An electron microprobe, LAM-ICP-MS and single-crystal X-ray structure refinement study of the effects of pressure, melt-H2O concentration and fO2 on experimentally produced basaltic amphiboles
TL;DR: Amphiboles were crystallized in sub-liquidus experiments at 0.5-2.0 GPa and 1000-1050 °C from hydrous nepheline basanite and olivine basalt starting compositions as mentioned in this paper.
Journal ArticleDOI
Crown ether complexes of actinide elements an X-ray study of the conformational change of the crown ether within the UO2(NO3)2(H2O)2(18-crown-6) molecule
TL;DR: In this article, a triclinic system with a = 9.072(3), b = 9,144(3, c = 8.323(3) A; α = 64.53°, β = 104.23°, γ = 110.72°, space group P 1.
Journal ArticleDOI
Allenylidene Ligand of [Ru(η5-C5H5)(CCCPh2)(CO)(PPri3)]BF4 as Entry to Novel Unsaturated η1-Carbon Ligands Containing Azetidine and Hexahydroquinoline Skeletons
TL;DR: The allenylidene complex [Ru(η5-C5H5)(CCCPh2)(CO)(PPri3)]BF4 reacts with dicyclohexyl carbodiimide to give the iminiumazetidinylidenemethyl complex (2), as a 4:1 mixture of isomers Z (2a) and E (2b).
References
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Book
International tables for X-ray crystallography
Norman Fordyce McKerron Henry,Lonsdale, Kathleen, Dame,John S. Kasper,Caroline H. MacGillavry,Gerard D. Rieck,James A. Ibers,Walter C. Hamilton +6 more
ReportDOI
A fortran program for calculating single crystal absorption corrections
D.J. Wehe,W.R. Busing,H.A. Levy +2 more
TL;DR: A Fortran program is described for calculating the absorption correction for application to single crystal x ray or neutron intensity measurements and is available in the form of symbolic punched cards.