A simple graphical method to pinpoint local pseudosymmetries in Z00 < 1 cases

Abstract

An intuitive method is presented for detecting pseudosymmetries in Z0 < 1 cases as a complement to well-proven strategies already available in the literature. It is based in the simple idea that the mid-points between equivalent atoms in symmetrically related molecules are disposed according to simple well-known patterns, which are easily recognizable by optical inspection. A number of Z0 = 4 cases in the literature are analyzed, which allows some of the potentialities of the method to be revealed.