In search of the rings: Approaches to Cherenkov ring finding and reconstruction in high energy physics

Conformation of dioxopiperazines. III. C

Conformation of dioxopiperazines. III. Conformational-energy calculations and evaluation of specific forces contributing to the intramolecular dioxopiperazine-phenyl ring-ring folding in cyclo(glycyl-phenylalanyl)

✍ Aleksandra Kołodziejczyk; Jerzy Ciarkowski 📂 Article 📅 1986 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 812 KB

Conformational energy calculations on cyclo(glycy1-L-phenylalanyl, c(G1y-Phe), were carried out by means of the semiempirical MO CNDO/2 method. They corroborated earlier experimental findings that in c(G1y-Phe) the conformations with a n aromatic sidechain ring folded over the dioxopiperazine (DOP)

Strain energy minimization study of the

Strain energy minimization study of the mechanism of, and the barrier to, conformational interconversion in five-membered diamine chelate rings

✍ Trevor W. Hambley 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 671 KB

The method of Lagrangian multipliers is used to constrain torsion angles during molecular mechanics refinement for the purpose of plotting strain energy against a reaction coordinate. A complete twodimensional analysis of the conformational interconversion from 6-to A -[Co(ethane-l,2-diamine) (NHd4I

The Townes and Dailey approach to the in

The Townes and Dailey approach to the interpretation of NQR parameters in the light of non-empirical calculations. Three-membered rings

✍ M. Yu. Balakina; O. D. Fominykh; I. D. Morozova; D. Ya. Osokin 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 485 KB

## Abstract The nuclear and electronic contributions to the EFG tensor components __eq~ii~__ at ^14^N, ^17^O, ^33^S and ^35^Cl nuclei in aziridine, methylaziridine, chloroaziridine, oxirane and thiirane were determined. The nuclear contributions were calculated within classical representations, whi

ChemInform Abstract: Synthesis and Prope

ChemInform Abstract: Synthesis and Properties of Novel Medium-Sized Heterocyclic Compounds Containing Two Sulfur Atoms in the Ring and Synthetic Approaches to Conjugated Cyclic Disulfonium Ylides.

✍ Hiroshi Shimizu; Hiroyoshi Watanabe; Masahiro Mizuno; Tadashi Kataoka; Mikio Hor 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Novel Partial Synth

ChemInform Abstract: Novel Partial Synthetic Approaches to Replace Carbons 2,3,4 of Steroids. A Methodology to Label Testosterone and Progesterone with 13C in the Steroid A Ring. Part 1.

✍ Isa G. J. de Avellar; Friedrich W. Vierhapper 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Appearance potentials determined by the

Appearance potentials determined by the electron-impact method as an analytical aid in the evaluation of conformational energies and clarification of ring conformation—I: Appearance potentials of the [MR]+· ions formed in the primary fragmentation of stereo-isomeric 1,3-dioxans. A direct route to conformational energies

✍ Kalevi Pihlaja; Jorma Jalonen 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 442 KB 👁 1 views