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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Structural parameters of chromite included in diamond and kimberlites from Siberia: A new tool for discriminating ultramafic source
TL;DR: Siberian chromite included in diamond, kimberlite, and spinel peridotite have been studied by single-crystal X-ray diffraction and electron microprobe analysis as discussed by the authors.
Journal ArticleDOI
Hydrothermal Synthesis and X-Ray Single Crystal Structure of [Zn(en)2]6[(VO)12O6B18O39(OH)3]·13H2O
TL;DR: In this article, the Zn6V12B18 was shown to have an 18-membered ring of B18O39(OH)3 sandwiched between two alternating edge-sharing vanadium-oxygen clusters.
Journal ArticleDOI
Cyclopalladated complexes with N-(benzoyl)-N'-(2,4-dimethoxybenzylidene)hydrazine: syntheses, characterization and structural studies
Sunirban Das,Samudranil Pal +1 more
TL;DR: In this article, a cyclopalladated complex with the Schiff base N-(benzoyl)-N′-(2,4-dimethoxybenzylidene)hydrazine (H2L, 1) has been described.
Journal ArticleDOI
Dioxygen complexes from the reactions of [Cp{*}RuH2(PP)](+) (PP = dppm, dppe) with air
TL;DR: In this paper, the dioxygen complex [Cp*Ru(O2)(dppm)]BPh4 was characterized by X-ray diffraction and showed that exposure of BF4 in acetone or methanol to air produced a mixture of [CP*RuCl(Dppm) with H2O2 and BF4 and Ph2PCH2P(O)PPh4.
Journal ArticleDOI
Syntheses and structures of three two-dimensional silver(I)–hexamethylenetetramine co-ordination polymers with new topological motifs
TL;DR: In this paper, three new co-ordination complexes, [Ag(μ-hmt)(cin), [Ag2(μ3-hm)(sal)2] 2 and [Ag 2(μhmt),ssa] 3 (hmt=hexamethylenetetramine (1,3,5,7-tetraazatricyclo[3.13,7]decane), have been prepared and structurally characterised.
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.