Short Quotes - Author Derek Harold Richard Barton Showing 1 - 5 of 5 Add Quote X-Ray crystallography is nowadays an accurate and rapid method of determining conformation in the crystal lattice, which conformation usually corresponds to the preferred conformation in solution. Derek Harold Richard Barton Solution Upvote0 The first serious applications were in triterpenoid chemistry. Derek Harold Richard Barton First Upvote0 Many transition states have a well-defined preferred geometrical requirement. Derek Harold Richard Barton states Upvote0 It does not seem, however, that organic chemists were much worried about barriers to rotation in organic molecules in general at that time because there was no technique available to demonstrate the phenomenon experimentally. Derek Harold Richard Barton Time Upvote0 Every chemical reaction has a transition state. Derek Harold Richard Barton State Upvote0