INTRODUCTION

•	The accumulated data in the Cambridge Structural Database provides a wealth of structural information which, with rare exceptions, can be used to determine precise and unbiased estimates of molecular dimensions and conformational preferences.

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When using experimentally determined results the ability to inspect and evaluate the underlying data is a key advantage and one that is not readily afforded by theoretical methods. In this module you will determine the preferred value of a Sb-Cl bond length and evaluate the precision of your findings using statistical criteria.