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Enantiomeric Excess Dependent Splitting of NMR Signal Through Co-Ligand Dynamic Exchange in a Coordination Complex

preprint
submitted on 27.04.2020 and posted on 28.04.2020 by Kazuyoshi Takimoto, Shinsuke Ishihara, Jan Labuta, Václav Březina, Daniel Payne, Katsuhiko Ariga, Jonathan P. Hill, Masato Sumita, Shigeki Mori, Hisako Sato
A coordination complex (L·2Zn·3C), where L is a prochiral ligand and C is an exchangeable acetate co-ligand, exhibits symmetrical splitting of 1H-NMR resonances due to L, which is proportional to the enantiomeric excess (ee) of a chiral guest co-ligand, 2-phenoxypropionic acid (PPA). The NMR resonances remain split even in dilute solution due to the high stability of complex with chiral guest.

Funding

JSPS KAKENHI Grant No. JP16H06518 (Coordination Asymmetry), and Grant No. 19K05229

History

Email Address of Submitting Author

ISHIHARA.Shinsuke@nims.go.jp

Institution

National Institute for Materials Science

Country

Japan

ORCID For Submitting Author

0000-0001-6854-6032

Declaration of Conflict of Interest

There is no conflict of interest.

Version Notes

This is the first version

Exports