𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Diastereotopy in the dicyclopentadienyl isothiocyanate and dicarbonyl titanium complexes. 13C NMR analysis

✍ Scribed by Jack Besançon; Jan Szymoniak; Claude Moise

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
271 KB
Volume
15
Category
Article
ISSN
0277-5387

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Studies in the synthesis of C-ring bridg
Studies in the synthesis of C-ring bridged morphinans 3—13C NMR analysis of some simple and complex bicyclooctane derivatives
✍ Victoria F. Roche; Donald L. Nagel; Edward B. Roche 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 507 KB

The "C NMR spectra of eight novel derivatives of bicydo[2.2.2]-and -[3.2.l]octane have been recorded and analysed. Tbese compounds were isolated and characterized as intermediates in the synthesb of a unique derivative of 1,2,3,3a,llb,llc-hexahydroahydroaporphine. Carbon chemical shift assignments o

Structural changes in the complexation o
Structural changes in the complexation of benzo-crown ethers—NOESY and variable-temperature 13C NMR study
✍ S. V. Santhana Mariappan; L. Gomathi; S. Subramanian 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 817 KB

## Abstract The structural changes during the complexation of benzo‐crown ethers with Cs^+^, K^+^ and Na^+^ were studied by NOESY and variable‐temperature ^13^C NMR spectroscopy. It was found that, on complexation, the distance between the CH‐α and 1‐CH~2~ is reduced in dibenzo‐24‐crown‐8 (DB24C8),

Long-range J(15N,13C) and J(13C,13C) cou
Long-range J(15N,13C) and J(13C,13C) coupling constants via the metal atom in 13C NMR spectra of square-planar Ni(II) complexes of the Schiff base of (S)-2-(N-benzylprolyl)aminobenzophenone and 13C-1-, 13C-2- or 15N-labelled glycine
✍ Josef Jirman; Milan Nádvorník; Jana Sopková; Alexander Popkov 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 211 KB 👁 1 views

Chiral synthons containing either 13Cor 15N-labelled glycine were prepared. The 13C and 15N NMR spectra of the Ni(II) complex of the Schi † base of (S)-2-(N-benzylprolyl)aminobenzophenone and 13C-1-, 13C-2or 15N-labelled glycine were measured and assigned. The observed splitting of the carbon signal

Comparative analysis of 13C shielding co
Comparative analysis of 13C shielding constants stereospecificity in the silicon and germanium derivatives of acetylenic aldehyde and ketone oximes based on the 13C NMR spectroscopy and GIAO calculations
✍ Andrei V. Afonin; Dmitry V. Pavlov; Alexander V. Mareev; Dmitry E. Simonenko; Ig 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 100 KB

## Abstract In the acetylenic aldehyde oximes with substituents containing silicon and germanium, the ^13^C NMR signal of the C‐2 carbon of triple bond is shifted by 3.5 ppm to lower frequency and that of the C‐3 carbon is moved by 7 ppm to higher frequency on going from E to Z isomer. A greater lo