✦ LIBER ✦

Rotational isomerism—XVI: The AA′BB′X NMR spectrum and rotational isomerism of 2-fluoroethyl trichloroacetate

✍ Scribed by R. J. Abraham; J. R. Monasterios

Publisher: John Wiley and Sons
Year: 1973
Tongue: English
Weight: 493 KB
Volume: 5
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270050702

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The complete AA′BB′X analysis of the ^1^H and ^19^F NMR spectrum of CH~2~F.CH~2~OCO·CCl~3~ (1) as a neat liquid and in various solvents is given and considered in detail. The differentiation of the two conjugate solutions is obtained both from the X spectrum and by analysis at two field strengths. The coupling constants obtained show that the compound exists almost entirely in the gauche rotamer in all solvents.

📜 SIMILAR VOLUMES

The (Chloromethyl)dihalosilanes X2HSiCH2

The (Chloromethyl)dihalosilanes X2HSiCH2Cl (X = F, Cl, Br, I): Synthesis, Multinuclear NMR Spectroscopy and Rotational Isomerism Examined by Raman Spectroscopy

✍ Karl Hassler; Reinhard Hummeltenberg; Günter Tekautz 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB

ChemInform Abstract: The Rotational Isom

ChemInform Abstract: The Rotational Isomerism of the Disilanes tBu—SiX2—SiX2—tBu (X = —Cl, —Br, —I): A Combined Raman Spectroscopic, X-Ray Diffraction, and ab initio Study

✍ Robert Zink; Harald Siegl; Karl Hassler 📂 Article 📅 2000 🏛 John Wiley and Sons ⚖ 29 KB 👁 1 views

ChemInform Abstract: The Rotational Isom

ChemInform Abstract: The Rotational Isomerism of the Disilanes Me—SiX2—SiX2—Me (X = —H, —F, —Br, —I): A Combined ab initio and Raman Spectroscopic Study

✍ Robert Zink; Karl Hassler 📂 Article 📅 2000 🏛 John Wiley and Sons ⚖ 29 KB 👁 2 views

Conformation of 4-ethoxy-4′-biphenylyl c

Conformation of 4-ethoxy-4′-biphenylyl cyanide in the isotropic and anisotropic liquid-crystalline state — a rotational isomeric state simulation of 2H NMR spectra

✍ Abe, Akihiro ;Kimura, Noritaka ;Nakamura, Mamoru 📂 Article 📅 1992 🏛 Wiley (John Wiley & Sons) ⚖ 676 KB

## Abstract The conformation of the ethoxy tail flanking the cyanobiphenyl core has been studied in the liquid‐crystalline phase as well as in the isotropic solution. In solution, the vicinal coupling constant ^3^J~CH~ for the moiety C^ph^OCH (C^ph^: phenyl carbon) provided the information regardi

Raman spectroscopic studies of the rotat

Raman spectroscopic studies of the rotational isomerism of trisilanes I—1,1,1,2,2,3,3,-heptamethyltrisilanes XMe2SiSiMe2SiMe3 with X=H, F, Cl, Br, I, C6H5 and OCH3

✍ Anke Jähn; Karla Schenzel; Robert Zink; Karl Hassler 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 332 KB 👁 1 views

The Raman vibrational spectra of the heptamethyltrisilanes with X = H, F, Cl, Br, XMe 2 SiSiMe 2 SiMe 3 , C 6 H 5 and unambiguously prove the presence of two rotamers, anti and gauche, in the liquid state. With variable-OCH 3 , temperature Raman vibrational spectroscopy, enthalpy di †erences between