ORCID Profile
0000-0002-3680-302X
Current Organisation
NASA Jet Propulsion Laboratory
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Publisher: International Union of Crystallography (IUCr)
Date: 20-11-2020
DOI: 10.1107/S1600576720014028
Abstract: Acetylene and ammonia are known to form a stable orthorhombic co-crystal under the surface conditions of Saturn's moon Titan (1.5 bar = 150 kPa, 94 K). Such a material represents a potential new class of organic minerals that could play an important role in Titan's geology. In this work, the thermal expansion of this co-crystalline system has been derived from in situ powder X-ray diffraction data obtained between 85 and 120 K. The results indicate significant anisotropy, with the majority of the expansion occurring along the c axis (∼2% over the temperature range of interest). Rietveld refinements reveal little change to the structure compared with that previously reported by Boese, Bläser & Jansen [ J. Am. Chem. Soc. (2009), 131 , 2104–2106]. The expansion is consistent with the alignment of C—H...N interactions along the chains in the a and b axes, and weak intermolecular bonding in the structural layers along the c axis.
Publisher: American Chemical Society (ACS)
Date: 04-06-2020
Publisher: American Chemical Society (ACS)
Date: 15-02-2023
Publisher: American Chemical Society (ACS)
Date: 23-07-2021
Publisher: CRC Press
Date: 19-08-2016
Publisher: American Chemical Society (ACS)
Date: 05-10-2022
Publisher: American Chemical Society (ACS)
Date: 15-11-2019
Publisher: American Chemical Society (ACS)
Date: 17-07-2020
Publisher: International Union of Crystallography (IUCr)
Date: 30-03-2016
DOI: 10.1107/S2052252516002815
Abstract: Using synchrotron X-ray powder diffraction, the structure of a co-crystal between benzene and ethane formed in situ at cryogenic conditions has been determined, and validated using dispersion-corrected density functional theory calculations. The structure comprises a lattice of benzene molecules hosting ethane molecules within channels. Similarity between the intermolecular interactions found in the co-crystal and in pure benzene indicate that the C—H...π network of benzene is maintained in the co-crystal, however, this expands to accommodate the guest ethane molecules. The co-crystal has a 3:1 benzene:ethane stoichiometry and is described in the space group R\\bar 3 with a = 15.977 (1) Å and c = 5.581 (1) Å at 90 K, with a density of 1.067 g cm −3 . The conditions under which this co-crystal forms identify it is a potential that forms from evaporation of Saturn's moon Titan's lakes, an evaporite material.
Publisher: Mineralogical Society of America
Date: 03-2018
DOI: 10.2138/AM-2018-6259
Publisher: American Chemical Society (ACS)
Date: 27-02-2018
Location: United States of America
No related grants have been discovered for Morgan Cable.