Next Article in Journal
Symmetry Perspectives on Some Auxetic Body-Bar Frameworks
Next Article in Special Issue
Hydrodynamic Helical Orientations of Nanofibers in a Vortex
Previous Article in Journal
Closed-Form Expressions for the Matrix Exponential
Previous Article in Special Issue
Supramolecular Chirality in Porphyrin Chemistry
Symmetry 2014, 6(2), 345-367; doi:10.3390/sym6020345
Article

Dynamic Processes in Prochiral Solvating Agents (pro-CSAs) Studied by NMR Spectroscopy

1,* , 1
,
1,2
 and
1,2,*
1 World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan 2 Core Research for Evolutionary Science and Technology (CREST), Japan Science and Technology Agency (JST), Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan
* Authors to whom correspondence should be addressed.
Received: 12 March 2014 / Revised: 7 May 2014 / Accepted: 7 May 2014 / Published: 14 May 2014
(This article belongs to the Special Issue Supramolecular Chirality)
View Full-Text   |   Download PDF [2656 KB, uploaded 14 May 2014]   |   Browse Figures

Abstract

Several dynamic processes, including tautomerism and macrocyclic inversion, in 1H-NMR prochiral solvating agents (pro-CSAs) are investigated. Various features of pro-CSA, including modes of interaction for complex formation, stoichiometry, binding strength and temperature effects were compared for three representative pro-CSA molecules. Structural effects of conjugated tetrapyrrole pro-CSA on the mechanism of enantiomeric excess determination are also discussed. Detailed analysis of species (complexes) and dynamic processes occurring in solution and their 1H-NMR spectral manifestations at various temperatures is presented.
Keywords: prochiral solvating agent; pro-CSA; host–guest complexation; charge transfer complex; hydrogen bond; enantiomeric excess; chirality; 1H-NMR; tetrapyrrole prochiral solvating agent; pro-CSA; host–guest complexation; charge transfer complex; hydrogen bond; enantiomeric excess; chirality; 1H-NMR; tetrapyrrole
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
SciFeed

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
RIS
MDPI and ACS Style

Labuta, J.; Ishihara, S.; Ariga, K.; Hill, J.P. Dynamic Processes in Prochiral Solvating Agents (pro-CSAs) Studied by NMR Spectroscopy. Symmetry 2014, 6, 345-367.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here

Comments

[Return to top]
Symmetry EISSN 2073-8994 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert