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Zeitschrift für Kristallographie 210, 255-259 © by R. Oldenbourg Verlag, München 1995 255 Crystal structure analysis by constrained optimisation R. Rothbauer Weidenstraße 11, D-65795 Hattersheim, Germany Dedicated to Professor Dr. Dr. h.c. Erwin F. Bertaut on the occasion of his 80th birthday Received August 3, 1994; accepted January 10, 1995 Crystal structure analysis / Direct methods j Phase problem Abstract. The unknown quantities of crystal structure analysis are defined by the optimisation principle of the method of least squares. This is, because of its

Zeitschrift fur Kristallographie, Bd. 126, S. 175-181 (1968) Weighting function in crystal-structure analysis* By R. Srintivasan Centre of Advanced Study in Physics, University of Madras (Received October 6, 1966, and in revised form March 1, 1967) Auszug Es wird gezeigt, daB sich eine allgemeine, von statistischen Betrachtungen ausgehende Naherungsmethode formulieren laBt, die fur verschiedene Probleme der Strukturanalyse Gewichtsverteilungsschemata aufzustellen erlaubt. Diese Naherung fiihrt direkt zur bekannten Methode der Einfuhrung einer Gewichts- funktion

Zeitschrift für Kristallographie 211, 31-38 31 ( by R. Oldenbourg Verlag, München 1996 Crystal structure analysis of some mesogenic cyanoazines R. Centore*, B. Panunzi and A. Tuzi Université di Napoli "Federico II". Dipartimento di Chimica, Via Mezzocannone 4, 1-80134 Napoli, Italy Received March 22, 1995; accepted June 30, 1995 Crystal structure / Molecular structure / Mesogenic / A zine Abstract. The crystal structure analysis of the following three mesogenic cyanoazines is reported: 4-methoxyben- zaldehyde-(4-cyanobenzylidene)hydrazone (E, E) (azine 1 ), 4

Synthesis and X-Ray Crystal Structure Analysis of 1,4-Epoxy-4-methyl- 1H,4H-2,3-benzodioxepin David S. Gieraa, Lothar Henniga, Thomas Gelbrichb, and Christoph Schneidera a Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany b Institute of Pharmacy, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria Reprint requests to M. Sc. D. S. Giera. E-mail: david.giera@chemie.uni-leipzig.de Z. Naturforsch. 2011, 66b, 419 – 424; received October 7, 2010 / revised November 30, 2010 Ozonolysis of 2-methyl-1H-indene (1

a welcome book, and our thanks are due to Woolfson for making it available to us. Every crystallographer engaged in crystal-structure analysis will wish to have his own copy. M. J. Buerger M. J. Buerger, Crystal-structure analysis. John Wiley and Sons, NewYork, London, 1960. 668 Seiten, 329 Abbildungen im Text. Leinen, $18.50. In der Reihe der Lehrbücher, die wir Buerger verdanken, ist dieser jüngste Band der gewichtigste, und auch er zeugt mit seinen gelegentlich etwas breiten, doch immer treffenden Formulierungen für das didaktische Geschick des Autors. Die

Zeitschrift fur Kristallographie 155, 1 -25 (1981) © by Akademische Verlagsgesellschaft 1981 Substructures and their application in crystal structure analysis Karlheinz Taxer Teilinstitut fur Strukturforschung im Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 16, D-1000 Berlin-Dahlem, and Hochschulrechenzentrum der Johann Wolfgang Goethe-Universitat Frankfurt am Main, GriifstraBc 38, D-6000 Frankfurt/M., Federal Republic of Germany Received: May 21, 1979; and in revised form: November 9, 1979 Abstract. This paper presents various substructure

Prenylated Flavonoids from the Root of Egyptian Tephrosia apollinea – Crystal Structure Analysis Ahmad M. Abou-Douha, Chihiro Itob, Rubén A. Toscanoc, Nariman Y. El-Bagaa, Ezz El-Din A. El-Khrisyd, and Hiroshi Furukawab a Department of Chemistry, Faculty of Science, South Valley University, Aswan P.O.Box 205, Egypt b Faculty of Pharmacy, Meijo University, Yagotoyama, Tempaku, Nagoya 468, Japan c Instituto de Quı́mica, UNAM, Circuito Exterior, Ciudad Universitaria, México, D. F., 04510 Mexico d Department of Natural Products, National Research Centre (NRC

volumes the text has been produced by similar wordprocessing systems and similar printers so that the over- all visual impression is that of a homogeneous book. Double- spaced typesetting certainly improves readability. Unfortu- nately, no index has been prepared. To sum up the book can be recommended to postgraduate students of chemistry, biochemistry, physics, mineralogy, and materials science as a solid contribution to the crystallographic literature. P. Paufler, Dresden Crystal Structure Analysis for Chemists and Biologists. By J. P. Glusker with M. Lewis and M

Zeitschrift für Kristallographie 188, 169-186 (1989) © by R. Oldenbourg Verlag, München 1989 - 0044-2968/89 $3.00 + 0.00 Crystal structure analysis from powder diffraction data G. Will Mineralogisches Institut, Universität Bonn, Poppelsdorfer Schloß, 5300 Bonn, Federal Republic of Germany Dedicated to Prof. Hahn on his 60th birthday Received: January 14, 1988; in revised form February 27, 1989 Powder diffraction / Profile analysis / Synchrotron Abstract. Careful experimental techniques, especially with synchrotron radiation, give well-resolved diffraction

Zeitschrift für Kristallographie 188, 169-186 (1989) C by R. Oldenbourg Verlag, München 1989 - 0044-2968/89 $3.00 + 0.00 Crystal structure analysis from powder diffraction data G. Will Mineralogisches Institut, Universität Bonn, Poppelsdorfer Schloß, 5300 Bonn, Federal Republic of Germany Dedicated to Prof. Hahn on his 60th birthday Received: January 14, 1988; in revised form February 27, 1989 Powder diffraction / Profile analysis / Synchrotron Abstract. Careful experimental techniques, especially with synchrotron radiation, give well