Octahedral tilting in the tungsten bronzes. Addendum.

Abstract

The studies of octahedral tilting in the tungsten bronzes [Whittle et al. (2015). Acta Cryst. B 71 , 342–348] were continued in the context of a more general approach to cooperative rotations of interconnected rigid units [Campbell et al. (2018). Acta Cryst. A 74 , 408–424]. That more general approach has detailed possible structures not identified in our 2015 paper. A brief comment on the implications of finite tilts for octahedral distortion is included.