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
Citations
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Countercomplementarity and strong ferromagnetic coupling in a linear mixed mu-acetato, mu-hydroxo trinuclear copper(II) complex. Synthesis, structure, magnetic properties, EPR, and theoretical studies.
Laura Gutierrez,Gloria Alzuet,José Antonio Real,Joan Cano,Joaquín Borrás,Alfonso Castiñeiras +5 more
TL;DR: The ferromagnetic exchange coupling is discussed using DFT calculations on model compounds that have shown a countercomplementary effect of the hydroxo and acetate bridges.
Journal ArticleDOI
Structure, Ferromagnetic Ordering, Anisotropy, and Spin Reorientation for the Two-Dimensional Cyano-Bridged Bimetallic Compound K2Mn3(H2O)6[Mo(CN)7]2·6H2O
TL;DR: In this paper, the title compound, K2Mn3(H2O)6[Mo(CN)7]2·6H 2O, has been synthesized by slow diffusion of aqueous solutions saturated in KNO3 and containing K4[Mo[Mn[CN]7]·2H 2 O and [Mn]6][NO3]2] respectively.
Journal ArticleDOI
Crystallographic studies of protein denaturation and renaturation. 2. Sodium dodecyl sulfate induced structural changes in triclinic lysozyme.
TL;DR: Cross-linked triclinic lysozyme was denatured with sodium dodecyl sulfate and refolding resulted in a refolding of the protein to a conformation similar to but not identical with the native one, resulting in a separation of regions of the polypeptide chain.
Journal ArticleDOI
Enantioselective Homogeneous Catalysis and the “3,5-Dialkyl Meta-Effect”. MeO−BIPHEP Complexes Related to Heck, Allylic Alkylation, and Hydrogenation Chemistry
Gerald Trabesinger,Alberto Albinati,Nantko Feiken,Roland W. Kunz,Paul S. Pregosin,Matthias Tschoerner +5 more
TL;DR: In this paper, the enantioselectivities arising from a Pd-catalyzed Heck reaction (>98% ee) and an allylic alkylation using a 3,5-di-tert-butyl-MeO−BIPHEP chiral auxiliary (1) are reported.
Journal ArticleDOI
Hydrolytic Cleavage of DNA by Ternary Amino Acid Schiff Base Copper(II) Complexes Having Planar Heterocyclic Ligands
TL;DR: The ternary copper(II) complexes [Cu(salgly)L] (L = phen, 1, 10-phenanthroline; dpq, dipyridoquinoxaline), where salgly, salala and salphe are tridentate Schiff-base ligands derived from the condensation of salicylaldehyde with glycine, L-alanine and L-phenylalanine, respectively, are prepared and their nuclease activity studied as mentioned in this paper.
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.