Comparison of the electronic and vibrational optical activity of a europium(III) complex

Chemistry : a European Journal
Tao WuP Bour

Abstract

The geometry and the electronic structure of chiral lanthanide(III) complexes are traditionally probed by electronic methods, such as circularly polarised luminescence (CPL) and electronic circular dichroism (ECD) spectroscopy. The vibrational phenomena are much weaker. In the present study, however, significant enhancements of vibrational circular dichroism (VCD) and Raman optical activity (ROA) spectral intensities were observed during the formation of a chiral bipyridine-Eu(III) complex. The ten-fold enhancement of the vibrational absorption and VCD intensities was explained by a charge-transfer process and the dominant effect of the nitrate ion on the spectra. A much larger enhancement of the ROA and Raman intensities and a hundred-fold increase of the circular intensity difference (CID) ratio were explained by the resonance of the λ = 532 nm laser light with the (7)F0 → (5)D0 transitions. This phenomenon is combined with a chirality transfer, and mixing of the Raman and luminescence effects involving low-energy (7)F states of europium. The results thus indicate that the vibrational optical activity (VOA) may be a very sensitive tool for chirality detection and probing of the electronic structure of Eu(III) and other coordi...Continue Reading

References

Jun 13, 2002·Chemical Reviews·Helen C Aspinall
Apr 1, 2003·Journal of Computational Chemistry·Maurizio CossiVincenzo Barone
Apr 28, 2005·Journal of the American Chemical Society·Fujiang ZhuLaurence D Barron
Oct 13, 2006·Journal of the American Chemical Society·Josef KapitánPetr Bour
Jan 4, 2007·Journal of the American Chemical Society·Stéphane PetoudKenneth N Raymond
Feb 28, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Christian Johannessen, Peter W Thulstrup
Feb 26, 2009·Physical Chemistry Chemical Physics : PCCP·Valentin Paul NicuEvert Jan Baerends
Nov 4, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Gilles Muller
May 8, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Tao WuXiao-Zeng You
Sep 21, 2010·Chirality·Thomas J Wenzel, Cora D Chisholm
Aug 10, 2011·Journal of the American Chemical Society·Valery AndrushchenkoPetr Bour
Jan 24, 2012·Analytical Chemistry·Shigeki YamamotoPetr Bouř
May 24, 2012·Chemical Communications : Chem Comm·Jeanne Crassous
Aug 17, 2012·Chemical Society Reviews·Rachel CarrDavid Parker
Nov 7, 2012·Chemical Communications : Chem Comm·Samuele Lo PianoLorenzo Di Bari
Jan 9, 2013·International Journal of Molecular Sciences·Hisako Sato, Akihiko Yamagishi
Feb 23, 2013·BMJ Case Reports·Peter Ng
Apr 5, 2013·Chemical Reviews·Daniel N WoodruffRichard A Layfield
Jul 5, 2013·Journal of Computational Chemistry·Shigeki Yamamoto, Petr Bouř
Dec 18, 2013·Chemical Reviews·Marie C HeffernThomas J Meade
Jan 1, 2014·BMJ Case Reports·Suheil Artul
Aug 15, 2013·The Journal of Physical Chemistry Letters·Václav ParchaňskýPetr Bouř

❮ Previous
Next ❯

Citations

May 19, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Marcin GóreckiLorenzo Di Bari
Oct 20, 2018·Chemistry, an Asian Journal·Tao WuPetr Bouř
Apr 8, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Makoto TsuruiYasuchika Hasegawa
Dec 24, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Minghui CuiXi-Li Li

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.