𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A correlation between substituent effects on chemical shifts in conjugated systems and coupling constants

✍ Scribed by A.R. Katritzky; B. Ternai; G.J.T. Tiddy


Publisher
Elsevier Science
Year
1966
Tongue
French
Weight
158 KB
Volume
7
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Substituent effects on 13C13C coupling c
✍ P. E. Hansen; O. K. Poulsen; A. Berg 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 302 KB

## Abstract The effects of an hydroxy substituent on ^13^C^13^C coupling constants and ^13^C chemical shifts have been measured in 1‐hydroxynaphthalene‐2‐^13^C and 1‐hydroxypyrene‐1‐^13^C. The changes observed in the ^13^C^13^C couplings show the effect of a substituent attached directly to the l

13C13C coupling constants and substituen
✍ P. E. Hansen; O. K. Poulsen; A. Berg 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 293 KB

## Abstract Long range inter‐ring ^13^C^13^C couplings are found to be effective in the title compounds, and the magnitudes of coupling constants and of substituent effects on ^13^C chemical shifts, as well as the signs of the latter, alternate with respect to the number of connecting bonds.

A unified correlation of substituent eff
✍ William B. Smith; Thomas W. Proulx 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 560 KB

## Abstract At the present time no completely satisfactory quantum mechanical calculations exist for carbon, proton or fluorine chemical shifts in various substituted aromatic or olefinic systems. However, the chemical shifts in such systems have been shown to be well correlated by a linear multipl

A correlation of substituent effects wit
✍ Jerzy Ciarkowski; Józef Kaczmarek; Zbigniew Grzonka 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 487 KB

## Abstract The effect of substituents on the proton chemical shifts and spin–spin coupling constants in __ortho__‐, __meta__‐ __and para__‐substituted 5‐phenyltetrazoles (tetrazolic acids) in DMSO–CH~3~CN (1:1, v/v) was studied. With the __meta__‐ and __para__‐ substituted compounds the additivity