Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

Volume 50| Part 5

ISSN: 2052-5206

October 1994 issue

Cover illustration: Selected infinite sheets in [M(T [phi] ₄)₂ [phi] _n] and [M_x(T [phi] ₃)_y [phi] _n] structures, see Hawthorne, pages 481-510.

lead articles

Structural aspects of oxide and oxysalt crystals

F. C. Hawthorne

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research papers

Low-temperature structure of lithium nesosilicate, Li₄SiO₄, and its Li_1s and O_1s X-ray photoelectron spectrum

B. H. W. S. de Jong, D. Ellerbroek and A. L. Spek

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Mechanism of crystal dendrite formation in KNO₃

L. J. Soltzberg, S. A. Fappiano, L. D. Griffith, L. E. Hidek, S. A. Ofek and L. L. Suarez

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Crystal chemistry and structures of lead–antimony sulfides

A. Skowron and I. D. Brown

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A comparative structural study of a flux-grown crystal of K_0.86Rb_0.14TiOPO₄ and an ion-exchanged crystal of K_0.84Rb_0.16TiOPO₄

P. A. Thomas, R. Duhlev and S. J. Teat

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Thermal parameters for α-quartz: a lattice-dynamical calculation

T. Pilati, F. Demartin and C. M. Gramaccioli

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Inter-relationship of octahedral geometry, polyhedral volume ratio and ferroelectric properties in rhombohedral perovskites

N. W. Thomas and A. Beitollahi

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Structural relations and tetrahedral ordering pattern of synthetic orthorhombic Cs₂CdSi₅O₁₂ leucite: a combined synchrotron X-ray powder diffraction and multinuclear MAS NMR study

A. M. T. Bell, S. A. T. Redfern, C. M. B. Henderson and S. C. Kohn

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High-resolution neutron study of vitamin B₁₂ coenzyme at 15 K: solvent structure

J. P. Bouquiere, J. L. Finney and H. F. J. Savage

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Ab initio structure determination from powder data using direct methods

R. Spengler, H. Zimmermann, H. Burzlaff, J. Jansen, R. Peschar and H. Schenk

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Structure of oxidized forms of neodymium and praseodymium (bis)phthalocyanines

A. Darovsky, V. Keserashvili, R. Harlow and I. Mutikainen

CCDC references: 1126886; 1198306

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Crystallography of metal picrates. II. Crystal structure of yellow thallium(I) picrate; relations among various M(I) picrate phases

M. Botoshansky, F. H. Herbstein and M. Kapon

CCDC reference: 1272198

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Crystal structure and photochemistry of dimethyl 1,4-dihydro-1,4,5,8-tetramethyl-1,4-ethenonaphthalene-2,3-dicarboxylate

R. Jones, J. R. Scheffer, J. Trotter and M. Yap

CCDC references: 1206471; 1206472; 1206473

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Crystal structures, chiralities and photochemistry of two polymorphs of L-prolinolium α-adamantylacetophenone-p-carboxylate

R. Jones, J. R. Scheffer, J. Trotter and J. Yang

CCDC references: 1190455; 1190457; 1206474

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Crystal studies of musk compounds. VIII. Structures of five homologues of musk phantolid

D. J. A. De Ridder, P. Čapková, K. Hatjisymeon, J. Fraanje and H. Schenk

CCDC references: 1206475; 1206476; 1206477; 1206478; 1206479

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Intramolecular N–H^⋯O hydrogen bonding assisted by resonance. III. Structural studies of 1-ketone-2-arylhydrazone derivatives

V. Bertolasi, P. Gilli, V. Ferretti and G. Gilli

CCDC references: 1206480; 1206481; 1206482; 1206483

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short communications

The structures of dimethylammonium metal(III) sulfate hexahydrates (metal = Al, Cr)

V. M. Petruševski

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Estimate of two general relationships between the number of atoms and the volumes of the unit cells of compounds containing only non-metallic p-block elements

P. Román, C. Guzmán-Miralles and A. Luque

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book reviews

Reactivity in molecular crystals edited by Y. Ohashi

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books received

Transition metal chemistry. The valence shell in d-block chemistry by M. Gerloch and E. C. Constable

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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.