Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types

The paper summarizes crystal-structure information for fifty-five new compounds of 4f-and 5felements representing thirteen known structure types.This paper summarizes crystal-structure results for a number of new compounds (of 4f-and 5f-elements) with structures corresponding to well-known types.The information is given without the supporting experimental evidence.Detailed accounts of the various investigations including experimental data will be published in future articles of the present series.The summary of the following pages is submitted for publication because the preparation of the complete papers has been delayed by unforeseen circumstances.