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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NMR and fluorescence spectral studies on bisdithiocarbamates of divalent Zn, Cd and their nitrogenous adducts: Single crystal X-ray structure of (1,10-phenanthroline)bis(4-methylpiperazinecarbodithioato) zinc(II)
TL;DR: In this article, the synthesis and characterization of the following adducts were described: [Zn(4-mpzdtc)2(1,10-phen)]· H2O (1), Zn(padtc) 2(2,2′-bipy)] (2), [Cd(4mpzdc)2 (1, 10-phen) 2 (2, 2.2′)-Bipy) (3), Cd(cmpzc) 2((1, 5.5)-phen), [
Journal ArticleDOI
Simple Route to Bis(3-indenyl)methanes and the Synthesis, Characterization, and Polymerization Performance of Selected racemic-Dichloro[methylenebis(Rn-1-indenyl)]- zirconium Complexes
Dang Vu A,Lin-Chen Yu,Davide Balboni,Tiziano Dall'occo,Luigi Resconi,Pierluigi Mercandelli,Massimo Moret,Angelo Sironi +7 more
TL;DR: In this article, a large range of bis(Rn-3-indenyl)methanes were obtained in good to fair yields with the base-catalyzed condensation between formaldehyde and (substituted) indenes.
Journal ArticleDOI
Three-dimensional structure of the ribonuclease t1 · 3'-guanylic acid complex at 2.6 Å resolution
TL;DR: X‐ray crystallography ribonuclease T1 3'‐Guanylic acid Ribonucleasing T1 · 3'guanylic Acid complex Specific recogniton Disordered ribose.
Journal ArticleDOI
Erabutoxin b. Initial protein refinement and sequence analysis at 0.140-nm resolution.
Philip E. Bourne,Atsushi Sato,Peter W. R. Corfield,Lawrence S. Rosen,Steven Birken,Barbara W. Low +5 more
TL;DR: The study has established complete structural identity of the two sea-snake venom toxins, erabutoxin b and neurotoxin b, isolated from Laticauda semifasciata snakes taken in different Pacific Ocean waters.
Journal ArticleDOI
Formation of Carbon−Carbon-Bonded Dimers in the Reduction of [CoIIsalophen] [salophen = N,N‘-o-Phenylenebis(salicylideneaminato)]: Their Reactivity with Electrophiles To Form Co−C Bonds
Stefania De Angelis,Euro Solari,Emma Gallo,Carlo Floriani,‡ and Angiola Chiesi-Villa,Corrado Rizzoli +5 more
TL;DR: In this article, the reduction of cobalt−Schiff base complexes has been explored as a function of the nature of the ligand, and the reduction resulted in the formation of bifunctional Co(I)−Na complexes, while for salophen derivatives the reductive coupling of imino groups was observed.
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.