forthcoming articles in Acta Crystallographica Section B

The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section B: Structural Science.

See also Forthcoming articles in all IUCr journals.

Accepted 6 October 2014

Model structures for C-(A)-S-H(I)

I. G. Richardson

Synopsis: C-(A)-S-H(I) is a structurally imperfect form of 14 Å tobermorite that is studied extensively as a model for the main binding in concrete. Crystal-chemically plausible structures are developed that account for a wide range of experimental observations, including variations in calcium to silicon ratio, water to silicon ratio, (alumino)silicate anion structure and layer spacing.

Accepted 26 September 2014

Assembled structures of tetra­kis­(bi­imidazole)dirhodium complexes hydrogen-bonded with common inorganic anions

J. Long, K. Uemura and M. Ebihara

Synopsis: Metal-metal-bonded dirhodium complexes with four chelating biimidazole ligands at equatorial sites and two axial ligands gave novel assembled structures with common inorganic anions.

Accepted 26 September 2014

Enantiopure and racemic alanine as bridging ligands in Ca and Mn chain polymers

K. Lamberts, A. Möller and U. Englert

Synopsis: Chain polymers crystallize from aqueous solutions of CaII and MnII halides with enantiopure or racemic alanine to form a series of closely related structure types.

Accepted 25 September 2014

Isomorphism and solid solution as shown by an accurate high-resolution diffraction experiment

A. Poulain, M. Kubicki and C. Lecomte

Accepted 24 September 2014

Structure, hydrogen bonding and thermal expansion of ammonium carbonate monohydrate

A. D. Fortes, I. G. Wood, D. Alfè, E. R. Hernández, M. J. Gutmann and H. A. Sparkes

Synopsis: Single-crystal neutron diffraction, ab initio calculations and Raman spectroscopy are applied to understand the structure and hydrogen bonding of ammonium carbonate monohydrate, a hitherto poorly characterized substance, particularly in relation to other ammonium-bearing compounds.

Accepted 23 September 2014

Reconstructive phase transition in (NH4)3TiF7 accompanied by the ordering of TiF6 octahedra

M. Molokeev, S. V. Misjul, I. N. Flerov and N. M. Laptash

Accepted 18 September 2014

Refinement of cronstedtite-1M

J. Hybler

Synopsis: The structure of an extremely rare 1M polytype of the 1:1 layer silicate cronstedtite from Eisleben (Saxony-Anhalt, Germany) was refined against a single-crystal X-ray data set. The deformation parameters of tetrahedral and octahedral sheets, arrangement of hydrogen bonds, stacking rule and desymmetrization are presented and discussed.

Accepted 12 September 2014

Diamond structure cannot be stable in nm-sized particles

S. S. Batsanov

Accepted 21 August 2014

Unusual crystal structure of N-substituted maleamic acid - very strong effect of intramolecular hydrogen bonds

R. Francis, P. Raghavaiah and P. Kuruvilla

Synopsis: The contrasting behaviour of N-(carboxymethyl) maleamic acid and N-carbamyl maleamic acid under cyclodehydration conditions are discussed in the light of X-ray diffraction and modelling studies.

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