issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

April 2009 issue

Highlighted illustration

Cover illustration: View of the tetra­metallic Mo4([eta]3-all­yl)4Cl2(OH)2(CO)8 mol­ecular unit in di-[mu]3-chlorido-di-[mu]3-hydroxido-tetra­kis[([eta]3-all­yl)dicarbonyl­molybdenum(II)]-9-fluorenone-tetra­hydro­furan (1/1/1). Displacement ellipsoids are drawn at the 50% probability level. See Amarante, Gonçalves & Almeida Paz [Acta Cryst. (2009), C65, m168-m170].

inorganic compounds

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Single crystals of a nickel vanadium tellurium oxide were synthesized. The crystal structure is layered. The building units are VO6 and NiO6 octa­hedra and TeO4E distorted square pyramids (E being the 5s2 lone electron pair of TeIV).

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A full analysis of the structure of the double perovskite La(Ni2/3Nb1/3)O3 has been performed for the first time using neutron powder diffraction.

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The determined structure of lithium barium silicate, Li2BaSiO4, consists of two types of tetra­hedra, viz. (SiO4)4− and (LiO4)7−, and Ba2+ atoms located at the centers of open spaces formed by the tetra­hedra. These tetra­hedra share edges to form (Li6SiO13)5− units. These basic units are connected by sharing corners (O atoms) parallel to [001] and through sharing (SiO4)4− tetra­hedra in (001).

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Dibarium dititanium difluoride dioxide hepta­oxidodisilicate, Ba2Ti2Si2O9F2, is a new edge-sharing titanate with a unique titanium silicate framework. Titanium oxyfluoride octa­hedra combine with silicon tetra­hedra to form a double stacked chain, which is the base unit of the layered framework.

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Ortho­rhom­bic crystals of aluminium oxyfluoride consist of octa­hedral and tetra­hedral AlF(O)n blocks with common vertices. Inter­ionic Al—F(O) distances are strictly separated into three groups. The structure differs markedly from the reported tetra­gonal phase Al1−xO1−3xF1+3x (x = 0.0886).

metal-organic compounds

organic compounds

Special and virtual issues

Acta Crystallographica Section C is planning special issues on

The Structural Chemistry of Homogeneous and Heterogeneous Catalysts

NMR Crystallography.

Full details are available on the special issues page.

The latest virtual issue, featuring Coordination polymers and with an introduction by Len Barbour, was published in July 2014.

What are the 'most read' articles from the recent special issues?

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