Stark spectroscopy: applications in chemistry, biology, and materials science
Article Abstract:
Stark spectroscopy has applications to a wide range of molecular systems and materials in biology and materials science as well as in chemistry. Using frozen glasses makes it possible to study almost any molecular system. Ions and proteins can be investigated. Spectra analyzed quantitatively give data on changes in polarizability and dipole moment change that go with a transition. Dipole moment change shows degree of charge separation. Applications exist in donor-acceptor polyenes and other systems. A method that yields electronic/vibrational Stark spectra and does not require sophisticated equipment exists.
Publication Name: Annual Review of Physical Chemistry
Subject: Chemistry
ISSN: 0066-426X
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Fast natural and magnetic circular dichroism spectroscopy
Article Abstract:
Techniques for time-resolved natural and magnetic circular dichroism (CD and MCD) spectroscopy are being improved and applied. Quasi-null ellipsometric techniques for nanosecond multichannel measurements of circular dichroism are especially important. Researchers may use the addition of circular or elliptical polarization state detection with fast optical absorption spectroscopy to learn more about transient molecular species from the perspective of electronic and nuclear arrangement. Structural studies of excited states and kinetic intermediates can be carried out in pico- to millisecond time frames.
Publication Name: Annual Review of Physical Chemistry
Subject: Chemistry
ISSN: 0066-426X
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Spectroscopy of metal ion complexes: gas-phase models for solvation
Article Abstract:
Metal ion complexes that are weakly bound are made in molecular beams. They are studied using mass-selected laser photodissociation spectroscopy, and the observations give new information about the fundamental interactions in electrostatic bonding. The metal ions of Mg and Ca are mostly used because they have just one valence electron and they possess strong atomic resonance lines in convenient wavelengths. Gas-phase models for solvation are related to electronic spectroscopy and clusters.
Publication Name: Annual Review of Physical Chemistry
Subject: Chemistry
ISSN: 0066-426X
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Second harmonic spectroscopy of aqueous nano- and micorparticle interfaces. Understanding odd-even effects in organic self-assembled monolayers
- Abstracts: Critical appraisal of salting-out and its implications for chemical and biological sciences. Bacterial resistance to beta-lacteal antibiotics: Compelling opportunism, compelling opportunity
- Abstracts: Preparation and spectroscopic investigations of mixed octahedral complexes and clusters. Self-assembling supramolecular complexes
- Abstracts: Preparation and spectroscopic investigations of mixed octahedral complexes and clusters. part 2 Homogenous-phase electron-transfer reactions of polyoxometalates
- Abstracts: Electrochemical applications of 'in situ' scanning probe microscopy. Cross-sectional scanning tunneling microscopy