Complex sentence: However, James Watson and Francis Crick first believed them to be in the enol tautomeric form until corrected by Jerry Donohue, delaying the solution of the structure for several months.
Split into simpler sentences: However, James Watson and Francis Crick first believed them to be in the enol tautomeric form until corrected by Jerry Donohue. Their mistaken initial understanding delayed the solution of the structure for several months.