Revised structures of phenylphenalene derivatives from Eichhornia crassipes

Careful 2D-NMR analyses of phenylphenalenes and dimeric phenylphenalenes isolated from Eichhornia crassipes allowed to revise the structure of five of them.

The structures of two phenylphenalenes and three dimeric phenylphenalenes have been revised by 2D-NMR spectroscopy.