Homochiral vs. heterochiral sodium core dimers of tartaric acid esters: A mass spectrometry and vibrational spectroscopy study
Journal of Molecular Structure, ISSN: 0022-2860, Vol: 1205, Page: 127583
2020
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Article Description
The mixed sodium core dimers of dimethyl- l -tartrate (Lmt) and the two enantiomers of diisopropyl tartrate (Lipt and Dipt) are studied by mass spectrometry coupled with laser vibrational spectroscopy. Infra-Red Multiple Photon Dissociation (IRMPD) spectra of the two diastereomer sodium-core dimers, namely, LmtLiptNa + and LmtDiptNa +, are identical in the fingerprint region but show a slight difference in the OH stretch region. Comparison to ab initio calculations indicates that the formed complexes probably reflect the structures pre-existing in solution. The difference between LmtLiptNa + and LmtDiptNa + arises from the presence of an additional Na + … O interactions in the homochiral complex. The two complexes also differ in the strength and nature of the OH…OC hydrogen bond.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0022286019316928; http://dx.doi.org/10.1016/j.molstruc.2019.127583; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85076630678&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0022286019316928; https://api.elsevier.com/content/article/PII:S0022286019316928?httpAccept=text/xml; https://api.elsevier.com/content/article/PII:S0022286019316928?httpAccept=text/plain; https://dul.usage.elsevier.com/doi/; https://dx.doi.org/10.1016/j.molstruc.2019.127583
Elsevier BV
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