Abstract

<h2>Acta Crystallographica</h2><h3></h3><h3>0365-110X</h3> <h2>research papers</h2> Volume 23 Part 6 Pages 907-910 December 1967 <h2>A comparison of experimental X-ray structure amplitudes for sodium chloride</h2> V. W. Maslen Acta Cryst. (1967). 23, 907 A Comparison of Experimental X-ray Structure Amplitudes for Sodium Chloride BY V.W. MASLEN Division of Chemical Physics, CSIRO Chemical Research Laboratories, Melbourne, Australia (Received 21 March 1967) Recent X-ray structure amplitude data for sodium chloride are divided into a consistent majority and an inconsistent minority by statistical methods. A set of mean value estimates of the structure amplitudes is derived from the consistent data. X-ray structure amplitudes (at room temperature) for sodium chloride have been measured many times in recent years (Table 1). Considerable differences occur, so that it is difficult to extract useful information about, say, the electron distribution and thermal motion in this alkali halide. The purpose of the present note is to compare the different experimental results for re- flexions with h2 + k2 + l2 < 48 and to show that these results may be grouped into a consistent majority and an inconsistent minority. The comparison has been restricted to this range of low-order reflexions for several reasons. Firstly, the range is common to