Comparison of experimental and calculated chemical shifts of cart,on atoms
in C-13 NMR spectra of two isomeric dodecacycto[14.9.1.1(4,13).1(7,10).0(2,
15).0(3,14).0(5,12.)0(6,11).0(17,25).0(18,24).0(19,21).0(20,24)]- octacos-8
-enes, bicyclo[2.2.1]heptadiene tetramers, confirmed their exo-trans-exo-tr
ans-exo-endo- and exo-trans-exo-trans-exo-exo-configurations.