Contents

18 March 2011
Vol 331, Issue 6023

About The Cover

Cover image expansion

COVER Reaction of a CN radical with cyclohexane (ball-and-stick structures in green-blue and green-black, respectively) in dichloromethane solvent (space-filling representation). Observations of this reaction on the time scale of picoseconds reveal a wealth of information about the chemical mechanism and shed light on how solvents widely used in chemical synthesis influence reactions on a molecular scale. See page 1423. Image: David R. Glowacki/School of Chemistry, University of Bristol