Solution of difficult crystal structures: new, simple, economic and time saving approaches

Abstract

MULTAN is the most widely used package for structure determination. However, there are situations where even after utilizing all possible built-in routes the solution is not reached and these become "difficult structures". If such a structure (a) has one or more heavy atoms, (b) is "chicken-wire" with predominant aromatic character, (c) has weak diffraction data, the new approaches discussed will lead to a unique structure solution by introducing simple, economic and time saving ideas into the MULTAN package.