(IUCr) Acta Crystallographica Section B Volume 48, Part 4, August 1992

Modulated structures

The theory of modulated structures and the study of such materials constitute an active and healthy field in crystallography. To view visualizations of over 60 modulated stuctures published in Acta Crystallographica Section B, click on the structure below.

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Format		BIBTeX
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		Medline
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issue contents

August 1992 issue

lead articles

Folding, aggregation and molecular recognition in peptides

research papers

The perils of Cc: comparing the frequencies of falsely assigned space groups with their general population

Crystal chemistry of Mg₂P₂O₇.nH₂O, n = 0, 2 and 6: magnesium-oxygen coordination and pyrophosphate ligation and conformation

Symmetry determination and Pb-site ordering analysis for the n = 1, 2, Pb_xBi_2−xSr₂Ca_n−1Cu_nO_4+2n+δ compounds by convergent-beam and selected-area electron diffraction

LaNi₂Al₃, a ternary substitution variant of the orthorhombic BaZn₅ type

Electron density study of YBa₂Cu₃O_6+δ

Crystal structures of RbTiOAsO₄, KTiO(P_0.58,As_0.42)O₄, RbTiOPO₄ and (Rb_0.465,K_0.535)TiOPO₄, and analysis of pseudosymmetry in crystals of the KTiOPO₄ family

X-ray investigation of the incommensurate modulated structure of Bi_2.08Sr_1.84CuO_6−δ

Structure refinement of commensurately modulated bismuth strontium tantalate, Bi₂SrTa₂O₉

Structure of (η⁶-C₆H₆)Mo(CO)₃ at room temperature and 120 K: motion about equilibrium and far from equilibrium

Low-temperature neutron diffraction study of [ReH₅(PPhⁱPr₂)₂(SiHPh₂)₂] and low-temperature X-ray diffraction study of [ReH₅(PCyp₃)₂(SiH₂Ph)₂]

Structural studies of oxygen-bridged iron compounds

Single-crystal X-ray diffraction and variable-temperature MAS NMR study on the heterogeneous network clathrate Na[N(CH₃)₄]₇[Si₈O₂₀].54H₂O

Electron-density distribution in crystals of 1,4,7,10,13,16-hexaazacyclooctadecanecobalt(III) trichloride, meso-[Co(hexaen)]Cl₃ at 106 K

Structure of a cobalt complex capable of multiple electron transfer

Configuration of amidines and factors governing their hydrogen-bonding patterns

Structure of a pepsin/renin inhibitor complex reveals a novel crystal packing induced by minor chemical alterations in the inhibitor

Crystal and molecular structures of propanediamine complexed with L- and DL-glutamic acid: effect of chirality on propanediamine

Positive indentification of two orthorhombic polymorphs of sulfamerazine (C₁₁H₁₂N₄O₂S), their thermal analyses and structural comparison

Structure determination of the bacteriophage φX174

A note on the conformational flexibility of the antiestrogenic drug tamoxifen: preferred conformations in the free state and bound to the protein calmodulin

Crystallization and preliminary data analysis of flock house virus

Structure determination of a dimeric form of erabutoxin-b, crystallized from a thiocyanate solution

Solid-state photobehaviour and crystal packing of o-chlorobenzylidene-DL-piperitone: influence of molecular topology on photobehaviour

Molecular packing of crystalline azahydrocarbons

short communications

Temperature-dependent space-group transitions in crystals of guanylate kinase from yeast

fast communications

Pancreatic ribonuclease co-crystallizes with the dinucleotide dCPdG in two distinct forms

H^⋯H van der Waals distance in cooperative O-H^⋯O-H^⋯O hydrogen bonds determined from neutron diffraction data. Addendum

Modulated structures

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