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Title: Rational ligand choice extends the SABRE substrate scope
Here we report on chelating ligands for Signal Amplification By Reversible Exchange (SABRE) catalysts that permit hyperpolarisation on otherwise sterically hindered substrates. We demonstrate 1 H enhancements of ∼100-fold over 8.5 T thermal for 2-substituted pyridines, and smaller, yet significant enhancements for provitamin B 6 and caffeine. We also show 15 N-enhancements of ∼1000-fold and 19 F-enhancements of 30-fold.  more » « less
Award ID(s):
1665090 1904780
PAR ID:
10172203
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Chemical Communications
ISSN:
1359-7345
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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