Interstellar anions: the role of quantum chemistry
RC Fortenberry - The Journal of Physical Chemistry A, 2015 - ACS Publications
Six anions have been conclusively detected in the interstellar medium (ISM). They all arrived
within a five-year window ending five years ago. Why have no new anions been detected? It …
within a five-year window ending five years ago. Why have no new anions been detected? It …
Photodetachment as a destruction mechanism for CN− and C3N− anions in circumstellar envelopes
Absolute photodetachment cross sections of two anions of astrophysical importance CN−
and C 3 N− were measured to be (1.18±(0.03) stat (0.17) sys)× 10− 17 cm 2 and …
and C 3 N− were measured to be (1.18±(0.03) stat (0.17) sys)× 10− 17 cm 2 and …
Formation of , , and Molecules by Radiative Electron Attachment and their Destruction by Photodetachment
The existence of negative ions in interstellar clouds has been associated for several
decades with the process of radiative electron attachment. In this Letter, we report …
decades with the process of radiative electron attachment. In this Letter, we report …
Theoretical prediction of new dipole-bound singlet states for anions of interstellar interest
Anions that exhibit dipole-bound singlet states have been proposed as a potential class of
molecules that may be identified in the interstellar medium. Using high-level coupled cluster …
molecules that may be identified in the interstellar medium. Using high-level coupled cluster …
Vibrational Predissociation Spectra of C2N− and C3N−: Bending and Stretching Vibrations
We present infrared predissociation spectra of C2N−(H2) and C 3N−(H2) in the 300–1850
cm− 1 range. Measurements were performed using the FELion cryogenic ion trap end user …
cm− 1 range. Measurements were performed using the FELion cryogenic ion trap end user …
Bound and continuum-embedded states of cyanopolyyne anions
Cyanopolyyne anions were among the first anions discovered in the interstellar medium.
The discovery has raised questions about the routes of formation of these anions in space …
The discovery has raised questions about the routes of formation of these anions in space …
The role of internal photons on the chemistry of the circumstellar envelopes of AGB stars
Recent high spatial resolution observations of gas and dust in the circumstellar envelopes
(CSEs) of AGB stars indicate morphologies much more complex than the smooth density …
(CSEs) of AGB stars indicate morphologies much more complex than the smooth density …
Influence of a Supercritical Electric Dipole Moment on the Photodetachment of
Threshold photodetachment spectroscopy of the molecular ion C 3 N-has been performed at
both 16 (1) and 295 (2) K in a 22-pole ion trap. The 295 (2) K spectrum shows a large …
both 16 (1) and 295 (2) K in a 22-pole ion trap. The 295 (2) K spectrum shows a large …
Low temperature reaction kinetics of CN−+ HC3N and implications for the growth of anions in Titan's atmosphere
Abstract The Cassini–Huygens probe has uncovered the existence of a profusion of
negatively charged molecular species in the upper atmosphere of Titan (∼ 950 km). The …
negatively charged molecular species in the upper atmosphere of Titan (∼ 950 km). The …
Additional diffuse functions in basis sets for dipole-bound excited states of anions
WJ Morgan, RC Fortenberry - Theoretical Chemistry Accounts, 2015 - Springer
The existence of dipole-bound excited states has largely been shown by previous
computation through the use of the standard LCAO-MO creation with numerous and diffuse …
computation through the use of the standard LCAO-MO creation with numerous and diffuse …