Acta Crystallographica Section A

Crystal Physics, Diffraction, Theoretical and General Crystallography

Volume 32, Part 5 (September 1976)



research papers



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Acta Cryst. (1976). A32, 751-767    [doi:10.1107/S0567739476001551]

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides

R. D. Shannon



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Acta Cryst. (1976). A32, 768-771    [doi:10.1107/S0567739476001563]

A statistical study on the measurability of Bijvoet differences in crystals with type-I and type-II degree of centrosymmetry

S. Parthasarathy and V. Parthasarathi



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Acta Cryst. (1976). A32, 771-773    [doi:10.1107/S0567739476001575]

X-ray determination of thermal expansion of olivines

H. P. Singh and G. Simmons



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Acta Cryst. (1976). A32, 774-777    [doi:10.1107/S0567739476001587]

The refinement of the heavy-atom parameters in the presence of non-crystallographic symmetry

M. G. Rossmann



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Acta Cryst. (1976). A32, 778-780    [doi:10.1107/S0567739476001599]

A packing function for delimiting the allowable locations of crystallized macromolecules

W. A. Hendrickson and K. B. Ward



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Acta Cryst. (1976). A32, 781-783    [doi:10.1107/S0567739476001605]

Refinement of R2 and R1: a physical interpretation

A. J. C. Wilson



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Acta Cryst. (1976). A32, 783-785    [doi:10.1107/S056773947601231X]

Coincidence-site lattices

H. Grimmer



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Acta Cryst. (1976). A32, 786-792    [doi:10.1107/S0567739476001617]

Hydrogen bonding in perchloric acid hydrates

I. D. Brown



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Acta Cryst. (1976). A32, 793-798    [doi:10.1107/S0567739476001629]

Examination of the graphite structure by convergent-beam electron diffraction

P. Goodman



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Acta Cryst. (1976). A32, 799-805    [doi:10.1107/S0567739476001630]

Refinement of the defect structure of `GeNb9O25' by high-resolution electron microscopy

A. J. Skarnulis, S. Iijima and J. M. Cowley



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Acta Cryst. (1976). A32, 806-812    [doi:10.1107/S0567739476001642]

The wavelength dependence of secondary extinction effects

M. J. Cooper and K. D. Rouse



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Acta Cryst. (1976). A32, 813-815    [doi:10.1107/S0567739476001654]

An investigation of the effect of surface damage on the intensity of diffracted neutrons

M. J. Cooper and C. R. Walker



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Acta Cryst. (1976). A32, 816-821    [doi:10.1107/S0567739476012321]

The application of direct methods to non-centrosymmetric structures containing heavy atoms

Th. E. M. van den Hark, P. Prick and P. T. Beurskens



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Acta Cryst. (1976). A32, 821-822    [doi:10.1107/S0567739476001666]

Application of direct methods on difference Fourier coefficients for the solution of partially known structures

P. T. Beurskens, T. E. M. van den Hark and G. Beurskens



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Acta Cryst. (1976). A32, 823-828    [doi:10.1107/S0567739476001678]

The role of multiple scattering in the study of lattice images of graphitic carbons

D. A. Jefferson, G. R. Millward and J. M. Thomas



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Acta Cryst. (1976). A32, 828-831    [doi:10.1107/S056773947600168X]

Calculations of lattice sums and heats of sublimation of long-chain even n-alkanes

H. E. L. Madsen and R. Boistelle



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Acta Cryst. (1976). A32, 832-847    [doi:10.1107/S0567739476001691]

Methods and programs for direct-space exploitation of geometric redundancies

G. Bricogne



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Acta Cryst. (1976). A32, 847-853    [doi:10.1107/S0567739476001708]

Applications of the Ewald method. I. Calculation of multipole lattice sums

P. G. Cummins, D. A. Dunmur, R. W. Munn and R. J. Newham



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Acta Cryst. (1976). A32, 854-858    [doi:10.1107/S056773947600171X]

Applications of the Ewald method. II. Homogeneous strain derivatives of dipole lattice sums

P. G. Cummins, D. A. Dunmur, R. W. Munn and R. J. Newham



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Acta Cryst. (1976). A32, 859-862    [doi:10.1107/S0567739476001721]

On the contribution of short-term fluctuations to the variance of the measured intensity

J. Sygusch and T. Cyr



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Acta Cryst. (1976). A32, 863-868    [doi:10.1107/S0567739476001733]

A simple model for dynamical neutron diffraction by deformed crystals

G. Albertini, A. Boeuf, G. Cesini, S. Mazkedian, S. Melone and F. Rustichelli



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Acta Cryst. (1976). A32, 869-876    [doi:10.1107/S0567739476001745]

The thermal neutron scattering by single crystals. Reflectivity and secondary extinction

S. G. Bogdanov and A. Z. Menshikov



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Acta Cryst. (1976). A32, 877-882    [doi:10.1107/S0567739476001757]

Probabilistic theory of the structure invariants: extension to the unequal atom case with application to neutron diffraction

H. Hauptman



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Acta Cryst. (1976). A32, 883-892    [doi:10.1107/S0567739476001769]

X-ray diffraction study of short-range-order diffuse scattering from disordered Cu-29.8 at.% Pd alloy

K.-I. Ohshima, D. Watanabe and J. Harada



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Acta Cryst. (1976). A32, 892-895    [doi:10.1107/S0567739476001770]

Electrogyration effect in alums

H.-J. Weber and S. Haussühl



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Acta Cryst. (1976). A32, 895-897    [doi:10.1107/S0567739476001782]

Rigid-body constraints and the least-squares refinement of crystal structures

A. D. Rae



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Acta Cryst. (1976). A32, 897-901    [doi:10.1107/S0567739476001794]

Temperature effect on the breadth of powder pattern reflections

B. E. Warren



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Acta Cryst. (1976). A32, 901-903    [doi:10.1107/S0567739476001800]

Some comments on and addenda to the tables of irreducible representations of the classical space groups published by S. C. Miller and W. F. Love

B. L. Davies and A. P. Cracknell



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Acta Cryst. (1976). A32, 904-909    [doi:10.1107/S0567739476001812]

Anharmonic contributions to the Debye-Waller factor for zinc

G. Albanese, A. Deriu and C. Ghezzi



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Acta Cryst. (1976). A32, 910-914    [doi:10.1107/S0567739476001824]

Pseudoatoms in diatomic molecules: restricted radial functions

J. J. Bentley and R. F. Stewart


short communications



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Acta Cryst. (1976). A32, 915-917    [doi:10.1107/S0567739476001836]

A priori estimates of the errors in experimental electron densities

E. D. Stevens and P. Coppens



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Acta Cryst. (1976). A32, 918-919    [doi:10.1107/S0567739476001848]

Angle settings for rotation around the diffraction vector for four-circle diffractometers

B. C. Wang, C. S. Yoo, J. Pletcher and M. Sax



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Acta Cryst. (1976). A32, 920    [doi:10.1107/S056773947600185X]

A note on the conversion of the tangent formula to an optimization problem

A. M. Lesk



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Acta Cryst. (1976). A32, 921-922    [doi:10.1107/S0567739476001861]

Constraining a recent paper

G. S. Pawley



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Acta Cryst. (1976). A32, 922-923    [doi:10.1107/S0567739476001873]

A solution for the best rotation to relate two sets of vectors

W. Kabsch



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Acta Cryst. (1976). A32, 923    [doi:10.1107/S0567739476001885]

A comment on the close-packing of hyperspheres

A. L. Mackay


international union of crystallography



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Acta Cryst. (1976). A32, 924    [doi:10.1107/S0567739476001897]

Announcements of Forthcoming Meetings and Short Courses



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Acta Cryst. (1976). A32, 924    [doi:10.1107/S0567739476001903]

International Tables for X-ray Crystallography



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Acta Cryst. (1976). A32, 924    [doi:10.1107/S0567739476001915]

Symmetry Aspects of M.C.Escher's Periodic Drawings


book reviews



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Acta Cryst. (1976). A32, 924-925    [doi:10.1107/S0567739476001927]

Crystal physics - Macroscopic physics of anisotropic solids by H. J. Juretschke



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Acta Cryst. (1976). A32, 925-926    [doi:10.1107/S0567739476001939]

Surface and defect properties of solids, Vol 4 edited by M. W. Roberts and J. M. Thomas



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Acta Cryst. (1976). A32, 926    [doi:10.1107/S0567739476001940]

The theory of Brillouin zones and electronic states in crystals by H. Jones


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