Potassium D-3-Phosphoglycerate and Cyclohexylammonium D-3-Phosphoglycerate Hydrate

Lis, Tadeusz; Jerzykiewicz, Lucjan B.

doi:10.1107/s0108270194010474

Cited by 11 publications

(19 citation statements)

References 3 publications

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“…3.72. H 2 Cl + (chloronium cation) Lis et al (2010) reported the observation of the J Ka,Kc = 2 1,2 → 1 0,1 transitions of ortho-H 35 2 Cl + and ortho-H 37 2 Cl + near 781 GHz, and the J Ka,Kc = 1 1,1 → 0 0,0 transition of para-H 35 2 Cl + near 485 GHz in absorption toward NGC 6334I and Sgr B2 using Herschel /HIFI. The frequencies were derived from the rotational constants determined in the laboratory work of Araki et al (2001).…”

Section: H 2 O + (Oxidaniumyl Cation)mentioning

confidence: 99%

2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules

McGuire

2018

ApJS

397

290

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To date, 204 individual molecular species, comprised of 16 different elements, have been detected in the interstellar and circumstellar medium by astronomical observations. These molecules range in size from two atoms to seventy, and have been detected across the electromagnetic spectrum from cmwavelengths to the ultraviolet. This census presents a summary of the first detection of each molecular species, including the observational facility, wavelength range, transitions, and enabling laboratory spectroscopic work, as well as listing tentative and disputed detections. Tables of molecules detected in interstellar ices, external galaxies, protoplanetary disks, and exoplanetary atmospheres are provided. A number of visual representations of this aggregate data are presented and briefly discussed in context.

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Section: H 2 O + (Oxidaniumyl Cation)mentioning

confidence: 99%

2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules

McGuire

2018

ApJS

397

290

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“…where, n H is the total hydrogen number density, x i is the abundance of the i th species and R is the path length along the line of sight (= 1.6×10 21 ×AV nH ). According to Lis et al (2010), H 2 Cl + is predicted to be the most abundant in those environments where ultraviolet radiation is strong (i.e., in diffuse clouds, or near surfaces of dense clouds that are illuminated by nearby O and B stars). In Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Various halogen elements such as fluorine and chlorine having solar abundances (3.6 × 10 −8 and 3.2 × 10 −7 respectively relative to total hydrogen nuclei (Asplund et al 2009)) play an important role towards the formation of various hydrides in the ISM. Dissociation energy of most of the hydrides are less than that of the hydrogen molecule, only exceptions are the diatomic hydrides, such as, HF and diatomic hydride cations, such as, HCl + (Lis et al 2010). Around an ISM, most of the halogen elements are biased to form hydrides .…”

Section: Introductionmentioning

confidence: 99%

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Formation of Different Isotopomers of Chloronium in the Interstellar Medium

Majumdar

Das

Chakrabarti

2014

ApJ

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Main focus of this paper is to explore the possibility of findings two deuterated isotopomers of H 2 Cl + (Chloronium) in and around the Interstellar Medium (ISM). Presence of Chloronium ion has recently been confirmed by Herschel Space Observatory ′ s Heterodyne Instrument for the Far-Infrared (Neufeld et al. 2012). It observed para-chloronium towards six sources in the Galaxy. Existence of its deuterated isotopomers (HDCl + & D 2 Cl + ) are till date not discussed in the literature. We find that these deuterated gas phase ions could be destroyed by various ion-molecular reactions, dissociative recombination (DR) and by cosmic rays (CR). We compute all the Ion-molecular (polar) reaction rates by using the parameterized trajectory theory and the Ion-molecular (non-polar) reaction rates by using the Langevin theory. For DR and CR induced reactions, we adopt two well behaved rate formulas. We also include these rate coefficients into our large gas-grain chemical network to study the chemical evolution of these species around the outer edge of the cold dense cloud. In order to study spectral properties of chloronium ion and its two deuterated isotopomers, we have carried out quantum chemical simulations. We calculated ground state properties of these species by employing second order Moller-Plesset perturbation theory (MP2) along with quadruple-zeta correlation consistent (aug-cc-pVQZ) basis set. Infrared and electronic absorption spectra of these species are calculated by using the same level of theory. MP2/aug-cc-pVQZ level of theory is used to report the different spectroscopic constants of these gas phase species. These spectroscopic constants are essential to predict rotational transitions of these species. Our predicted column densities of D 2 Cl + , HDCl + along with the spectral information may enable their future identification around outer edges of cold dark clouds.

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“…HCl in the interstellar medium has been examined using both space based and ground based observatories. Chloronium (H 2 Cl + ) has also been used to probe Cl isotope ratios after the molecule was discovered in the interstellar medium using the Herschel Space Observatory (Lis et al 2010). Finally, the Cl isotope ratio has been derived in the circumstellar envelopes of evolved stars using NaCl, AlCl, KCl, and HCl.…”

Section: Introductionmentioning

confidence: 99%

Chlorine Isotope Ratios in M Giants

Maas

Pilachowski

2018

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We have measured the chlorine isotope ratio in six M giant stars using HCl 1-0 P8 features at 3.7 microns with R ∼ 50,000 spectra from Phoenix on Gemini South. The average Cl isotope ratio for our sample of stars is 2.66 ± 0.58 and the range of measured Cl isotope ratios is 1.76 < 35 Cl/ 37 Cl < 3.42. The solar system meteoric Cl isotope ratio of 3.13 is consistent with the range seen in the six stars. We suspect the large variations in Cl isotope ratio are intrinsic to the stars in our sample given the uncertainties. Our average isotopic ratio is higher than the value of 1.80 for the solar neighborhood at solar metallicity predicted by galactic chemical evolution models. Finally the stellar isotope ratios in our sample are similar to those measured in the interstellar medium.

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Potassium D-3-Phosphoglycerate and Cyclohexylammonium D-3-Phosphoglycerate Hydrate

Cited by 11 publications

References 3 publications

2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules

2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules

Formation of Different Isotopomers of Chloronium in the Interstellar Medium

Chlorine Isotope Ratios in M Giants

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