title: An unusual seven-bond H-H spin coupling
abstract: A through-space, seven-bond (1)H-(1)H coupling has been observed in tiliacorinine (1) caused by the close spacial proximity of two aromatic protons that are located in different benzene rings which are separated by two sp(3) carbons. Results from DQF-COSY and NOESY NMR experiments, as well as molecular modeling, reveal that the two protons are unusually close to one another in space.
authors: Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
authors: NS
authors: Bhacca
authors: GP
authors: Juneau
authors: DC
authors: Lankin
authors: B
authors: Mukherjee
authors: T
authors: Seal
authors: JO
authors: Escobedo
authors: RM
authors: Strongin