𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Substituent effects on C-13 chemical shift of the side-chain Cα-atom in substituion benzenes. through-space interaction in meta-series and hybridization effect

✍ Scribed by Naoki Inamoto; Shozo Masuda; Kazuo Tori; Yohko Yosnimura

Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
255 KB
Volume
18
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Ab initio IGLO studies of the conformati
Ab initio IGLO studies of the conformational dependences of 13C NMR chemical shifts and α-through ε-substituent effects in 1-substituted pentanes
✍ Michael Barfield 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 411 KB 👁 2 views

Ab initio IGLO (individual gauge for localized molecular orbital) methods of SCF-MO theory were used to extend studies of the conformational dependences of isotropic 13C NMR chemical shifts to n-hexane and three 1-substituted pentanes (X \ CN, OH, F). Isotropic shifts were obtained as a func-XCH 2 C

Substituent effects on C-13 chemical shi
Substituent effects on C-13 chemical shifts in aliphatic and aromatic series. Proposal of new inductive substitutent parameter (ι; iota) and the application
✍ Naoki Inamoto; Shozo Masuda 📂 Article 📅 1977 🏛 Elsevier Science 🌐 French ⚖ 242 KB

In the previous papers, l-3 we reported that the relative substituent C-13 chemical shifts (13C-SCS) of aliphatic and aromatic carbons are mainly controlled by group electronegativity (Xx) showing periodical dependence and to a small extent by resonance-like effect. We now propose a new inductive su

Through-space transmission of polar subs
Through-space transmission of polar substituent effects in the bicyclo[1.1.1]pentane ring system as monitored by 119Sn NMR chemical shifts: a 13C and 119Sn NMR study of 3-substituted-(X)bicyclo[1.1.1]pent-1-yltrimethylstannanes
✍ William Adcock; Alexander R. Krstic 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 279 KB 👁 3 views

A series of 3-substituted(X)bicyclo [ 1.1.1 ] pent-1-yltrimethylstannanes (3) were synthesized and their 119Sn and 13C NMR spectra were recorded. The 119Sn substituent chemical shifts (SCS) and the one-bond carbon-tin coupling constants [ 1J(13C,119Sn) ] were analyzed in terms of possible substituen