To me the correct answer is you have 2 chains A and B or CIS and TRANS [chains don’t have to be single letters!] and most peaks (ie the ones which show no chemical shift difference) are assigned to both, then where the chemical shifts are different the separated peaks will be assigned to the specific chain for the isomer…
regards
Gary
Dr Gary S Thompson NMR Facility Manager
CCPN CoI & Working Group Member
Wellcome Trust Biomolecular NMR Facility
School of Biosciences, Division of Natural Sciences
University of Kent, Canterbury, Kent, England, CT2 7NZ
:01227 82 7117
: g.s.thompson@kent.ac.uk
orchid: ORCID