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Title: Charge-Assisted Hydrogen-Bonding and Crystallization Effects within UVI Glycine Compounds

Journal Article · · European Journal of Inorganic Chemistry
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  1. Univ. of Iowa, Iowa City, IA (United States)
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UVI chemistry is dominated by the uranyl (UO2)2+ cation, in which the oxo group is essentially passivated by a triple bond to the metal center. Weak interactions between the oxo group Lewis acids or hydrogen-bond donors can be observed in extended solids, but there is little understanding of how the uranyl bond is affected by these additional forces. In the current study, the influence of charge-assisted hydrogen-bonding and crystallization effects on the uranyl oxo bond is explored through the synthesis and characterization of four uranyl compounds: [(UO2)3(Gly)2(O)2(OH)2](H2O)1.5 (UG1b), [(UO2)4(Gly)3(For)(O)3(OH)](H2O)6.5 (UGFA1a), [(UO2)8(Gly)6(For)2(O)6(OH)2](H2O)10 (UGFA1b), and [(UO2)4(Gly)3(O)3(OH)2](HFor)(H2O)9.45 (UGFA2). Each of these compounds contains uranyl infinite chain topologies that are built upon trimeric or tetrameric repeating units and are linked through multiple hydrogen-bonding interactions to the uranyl oxo groups. The impact on the uranyl bond was explored through an examination of hydrogen-bonding donor–acceptor distances and the calculation of force constants obtained from Raman and IR spectral bands. The stretching force constants are lower with cooperative hydrogen bonds to the uranyl oxo groups. Finally, this suggests that these interactions are important and can combine with crystallization effects to impact the uranyl oxo bond.

Research Organization:
Univ. of Iowa, Iowa City, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
SC0013980
OSTI ID:
1668707
Alternate ID(s):
OSTI ID: 1400825
Journal Information:
European Journal of Inorganic Chemistry, Vol. 2017, Issue 13; ISSN 1434-1948
Publisher:
ChemPubSoc EuropeCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (5)

Isolating Equatorial and Oxo Based Influences on Uranyl Vibrational Spectroscopy in a Family of Hybrid Materials Featuring Halogen Bonding Interactions with Uranyl Oxo Atoms: Isolating Equatorial and Oxo Based Influences on Uranyl Vibrational Spectroscopy in a Family of Hybrid Materials Featuring Halogen Bonding Interaction journal September 2017
Impacts of hydrogen bonding interactions with Np( v / vi )O 2 Cl 4 complexes: vibrational spectroscopy, redox behavior, and computational analysis journal January 2020
Three Different Modes of Association between Metal Cations in Heterometallic Uranyl-Co III and Uranyl-Mn II Species: Three Different Modes of Association between Metal Cations in Heterometallic Uranyl-Co III and Uranyl-Mn II Species journal October 2018
Engaging the Terminal: Promoting Halogen Bonding Interactions with Uranyl Oxo Atoms journal August 2017
Non-covalent interactions of uranyl complexes: a theoretical study journal January 2018

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
uranium
glycine
hydrogen bonding
oxo activation