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Application of two-dimensional NMR to the structure determination of an unsymmetrical monosubstituted bisporphyrin

โœ Scribed by R. Costa i Sala; J.-M. Latour; M. Bardet

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
232 KB
Volume
31
Category
Article
ISSN
0749-1581

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โœฆ Synopsis

Abstract

The complete assignment of ^1^H and ^13^C data of an unsymmetrical monosubstitute bisporphyrin based on an extensive application of twoโ€dimensional ^1^H๏ฃฟ^1^H, ^1^H๏ฃฟ^13^C and ^13^Cโ€^13^C shift spectroscopy is described. The ^1^H๏ฃฟ^1^H shift correlation through dipolar interaction (2D NOESY) was essential to prove the connection of the alkyl fragments and to distinguish protons spatially close but belonging to different units. The additive structural increments method allowed the assignment of the quatenary carbons of tolyl residues.

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