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Assignments of the chemical shifts of meso-phenyl protons and carbons of tetrakis-5,10,15,20 (α,β,α,β-ortho-amidophenyl) porphyrins

✍ Scribed by B. Boitrel; E. Camilleri; Y. Fleche; A. Lecas; E. Rose


Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
255 KB
Volume
30
Category
Article
ISSN
0040-4039

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✦ Synopsis


10,15,j3,

porphyrin derivatives, permitted to conclusively assign the chemical shifts relative to the meso-phenyl protons and carbons.


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Pseudohalogen chemistry. VIII—Substituen
✍ Robert G. Guy 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 188 KB

Substituent constants for the thiocyanato group (q:: = 0.94, ZEN = 0.45 and c:zs = 0.41) have heen derived by an additivity procedure, and shown to reproduce the chemical shifts of vinyl protons in a wide variety of a,fL unsaturated thiocyanates with an accuracy of kO.30 ppm in 94% of the cases stud