title: More space-group changes.
abstract: Revised structures are reported for 19 crystalline compounds, based on space groups of higher symmetry than originally reported. In four cases the Laue symmetry is changed, one from 1 to 2/m and three from 2/m to mmm; in the remaining fifteen a center of symmetry has been added. For eight of these latter compounds we have obtained F values and carried out least-squares refinements in the centrosymmetric space groups, with more satisfactory results than originally reported.
authors.affiliation: Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena 91125.
authors.forename: R E
authors.initials: RE
authors.lastname: Marsh
authors.forename: F H
authors.initials: FH
authors.lastname: Herbstein
mesh_terms: D003461:Crystallography; D006146:Guanidines; D009942:Organometallic Compounds
chemical_list: D006146:Guanidines; D009942:Organometallic Compounds