✦ LIBER ✦

Re-examination of the 13C NMR spectra of synthetic chlorins

✍ Scribed by Alan M. Stolzenberg; Matthew T. Stershic

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 346 KB
Volume: 25
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260250316

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✦ Synopsis

The 13C NMR spectra of the synthetic chlorins H,(OEC), Ni(TMC) and H,(TPC) have been re-examined. Evidence from single-frequency proton decoupled, proton coupled, and 2D 13C-13C INADEQUATE experiments show that the previous assignments of the meso-substituted chlorins were incorrect. Corrected assignments establish that the a-pyrroline carbons of chlorins occur at lower fields (150-175 ppm) than the a-pyrrole carbons.

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