Conformations of the Ester Group
Michinori Oki,Hiroshi Nakanishi +1 more
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TLDR
In some esters of formic acid which carry bulky alkyl groups (e.g., t-butyl formate, 1,1-diethylpropyl formates, and triphenylmethyl formate), the presence of s-cis conformer has been confirmed by various spectroscopic techniques as mentioned in this paper.Abstract:
In some esters of formic acid which carry bulky alkyl groups (e .g, t-butyl formate, 1,1-diethylpropyl formate, and triphenylmethyl formate), the presence of s-cis conformer has been confirmed by various spectroscopic techniques. The dipole-moment measurements also support the conclusion drawn from the spectroscopic data.read more
Citations
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Journal ArticleDOI
Cis-trans isomerization of organic molecules and biomolecules: implications and applications.
Christophe Dugave,Luc Demange +1 more
TL;DR: This review focuses on the part of the molecule containing two atoms attached together by a double bond with substituents W-Z which may be found as two isomeric molecules.
Journal ArticleDOI
Vibrational spectra of monothiocarbamates-II. IR and Raman spectra, vibrational assignment, conformational analysis and ab initio calculations of S-methyl-N, N-dimethylthiocarbamate
TL;DR: In this article, a vibrational assignment for the -d0 molecule is facilitated by the availability of spectral data for five different isotopomers, including S-methyl-N, N-dimefhylthiocarbamate, (CH3)2NC(O)SCH3, and its isotopomer, S-d3, n-d6 and N -d9, for the gas and liquid.
Book ChapterDOI
Molecular orbital calculations on the conformation of amino acid residues of proteins.
Bernard Pullman,Alberte Pullman +1 more
TL;DR: This chapter provides an overview of the quantum–mechanical work done in conformation of amino acid residues of proteins with the double objective of comparing the results with those of the previous empirical computations and with the constantly and rapidly increasing amount of experimental data.
References
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Journal ArticleDOI
Mechanisms of Catalysis of Nucleophilic Reactions of Carboxylic Acid Derivatives.
Journal ArticleDOI
cis and trans Configurations of the Peptide Bond in N-Monosubstituted Amides by Nuclear Magnetic Resonance
Journal ArticleDOI
Microwave Spectrum, Barrier to Internal Rotation, and Structure of Methyl Formate
TL;DR: In this article, rotational constants have been assigned to the following isotopic species of methyl formate by investigation of their microwave spectra: HCOOCH 3, DCOOCH3, HCOO CH2D, HCCOOCD3, HCOOC13H3, and HCOO18CH3.
Journal ArticleDOI
An Electron Diffraction Investigation of Methyl Formate, Methyl Acetate and Methyl Chloroformate
TL;DR: This paper showed that simple aliphatic esters do not have free rotation about the carbonyl carbon-ether oxygen bond, but are planar with the configuration I, which we shall call cis.