Circular Dichroism Spectroscopy of Catalyst Preequilibrium in Asymmetric Autocatalysis of Pyrimidyl Alkanol

Mechanistic understanding of asymmetric autocatalysis of pyrimidyl alkanol is highly attracting and challenging topic due to its unique feature of amplification of enantiomeric excess. Circular dichroism spectrum analysis of this...

Chirality of a rhodamine heterodimer linked to a DNA scaffold: an experimental and computational study

The relative orientation of monomers in a rhodamine heterodimer tethered on DNA governs the sign sequence of the circular dichroism spectrum.

New Iboga-Type Indole Alkaloids from Tabernaemontana divaricata

Two hitherto unknown iboga-type indole alkaloids, namely (3R)-7,19-di-epi-3-methoxytabernoxidine (1) and (3R,19R)-19-hydroxy-3-(2-oxopropyl)voacangine (2), together with eight known alkaloids (3–10), were isolated from the twigs and leaves of Tabernaemontana divaricata. Their structures were established on the basis of spectroscopic data interpretation, single crystal X-ray diffraction analysis and circular dichroism spectrum. Graphic Abstract

A new interpretation of the structure and solvent dependence of the far UV circular dichroism spectrum of short oligopeptides

Classical excitonic models are unsuitable for describing the electronic structure of polypeptides, and explicit consideration of water is essential.

The shape of the electronic circular dichroism spectrum of (2,6-dimethylphenyl)(phenyl)methanol: interplay between conformational equilibria and vibronic effects

Analysis of the interplay between conformational equilibria, solvent effects and vibronic contributions in the ECD spectra.