TY - JOUR
T1 - Tetraphenylporphyrin molecules containing heteroatoms other than nitrogen
T2 - 8—A carbon‐13 NMR study
AU - Abraham, Raymond J.
AU - Leonard, Paul
AU - Ulman, Abraham
PY - 1984/9
Y1 - 1984/9
N2 - The 13C NMR spectra of new hetero‐substituted tetraphenylporphyrin (TPP) molecules have been studied. It was found that most of the carbon chemical shifts are similar to those found in TPP. The similar chemical shifts of the different β‐carbons in S2TPP and in Se2TPP free bases and, moreover, the considerable downfield shift of the α‐carbons of the S(Se)‐rings on protonation are in agreement with the previously suggested theory of inner and outer aromaticity in these porphyrins.
AB - The 13C NMR spectra of new hetero‐substituted tetraphenylporphyrin (TPP) molecules have been studied. It was found that most of the carbon chemical shifts are similar to those found in TPP. The similar chemical shifts of the different β‐carbons in S2TPP and in Se2TPP free bases and, moreover, the considerable downfield shift of the α‐carbons of the S(Se)‐rings on protonation are in agreement with the previously suggested theory of inner and outer aromaticity in these porphyrins.
UR - http://www.scopus.com/inward/record.url?scp=84986776584&partnerID=8YFLogxK
U2 - 10.1002/mrc.1270220908
DO - 10.1002/mrc.1270220908
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AN - SCOPUS:84986776584
SN - 0030-4921
VL - 22
SP - 561
EP - 564
JO - Organic Magnetic Resonance
JF - Organic Magnetic Resonance
IS - 9
ER -