Title: Computational and Experimental 1H-NMR Study of Hydrated Mg-Based Minerals

Journal Article · · Molecules

Magnesium oxide (MgO) can convert to different magnesium-containing compounds depending on exposure and environmental conditions. Many MgO-based phases contain hydrated species allowing 1H-nuclear magnetic resonance (NMR) spectroscopy to be used in the characterization and quantification of proton-containing phases; however, surprisingly limited examples have been reported. Here, 1H-magic angle spinning (MAS) NMR spectra of select Mg-based minerals are presented and assigned. These experimental results are combined with computational NMR density functional theory (DFT) periodic calculations to calibrate the predicted chemical shielding results. This correlation is then used to predict the NMR shielding for a series of different MgO hydroxide, magnesium chloride hydrate, magnesium perchlorate, and magnesium cement compounds to aid in the future assignment of 1H-NMR spectra for complex Mg phases.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1601894
Report Number(s):
SAND-2020-2144J; PII: molecules25040933
Journal Information:
Molecules, Journal Name: Molecules Journal Issue: 4 Vol. 25; ISSN MOLEFW; ISSN 1420-3049
Publisher:
MDPICopyright Statement
Country of Publication:
Switzerland
Language:
English

References (47)

Size-Dependent Optical Properties of MgO Nanocubes journal August 2005
First-principles calculations of NMR parameters for phosphate materials journal September 2010
Modelling one- and two-dimensional solid-state NMR spectra: Modelling 1D and 2D solid-state NMR spectra journal December 2001
High-Resolution 1H NMR Spectroscopy in the Solid State: Very Fast Sample Rotation and Multiple-Quantum Coherences journal August 2001
Characterization of Various Magnesium Oxides by XRD and1H MAS NMR Spectroscopy journal April 1999
29 Si and 1 H NMR spectroscopy of high-pressure hydrous magnesium silicates journal April 1997
Calcium Phosphates and Hydroxyapatite: Solid-State NMR Experiments and First-Principles Calculations journal December 2007
XRD and 1H MAS NMR spectroscopic study of mixed oxides obtained by calcination of layered-double hydroxides journal December 2000
1H MAS NMR study of the coordination of hydroxyl groups generated upon adsorption of H2O and CD3OH on clean MgO surfaces journal July 2006
Temperature and common-ion effect on magnesium oxide (MgO) hydration journal April 2010
Micro-analysis of the role of interfacial transition zone in “salt weathering” on concrete journal November 2010
Experimental determination of the solubility constant for magnesium chloride hydroxide hydrate (Mg3Cl(OH)5·4H2O, phase 5) at room temperature, and its importance to nuclear waste isolation in geological repositories in salt formations journal August 2010
Identification of the OH groups responsible for kinetic basicity on MgO surfaces by 1H MAS NMR journal November 2009
Rectangular MgO microsheets with strong catalytic activity journal October 2011
Structural, morphological and optical properties of MgO nanoparticles for antibacterial applications journal March 2016
The PAW/GIPAW approach for computing NMR parameters: A new dimension added to NMR study of solids journal July 2011
High fire resistance in blocks containing coal combustion fly ashes and bottom ash journal August 2011
Models of Aged Magnesium–Silicate–Hydrate Cements Based on the Lizardite and Talc Crystals: A Periodic DFT-GIPAW Investigation journal March 2017
Atomically Thin Interfacial Suboxide Key to Hydrogen Storage Performance Enhancements of Magnesium Nanoparticles Encapsulated in Reduced Graphene Oxide journal August 2017
Hydration and Hydroxylation of MgO in Solution: NMR Identification of Proton-Containing Intermediate Phases journal January 2019
Characterization of hydrous species in minerals by high-speed proton MAS-NMR journal March 1988
A Picture of Disorder in Hydrous Wadsleyite—Under the Combined Microscope of Solid-State NMR Spectroscopy and Ab Initio Random Structure Searching journal January 2019
High-Pressure δ-Al(OH) 3 and δ-AlOOH Phases and Isostructural Hydroxides/Oxyhydroxides:  New Structural Insights from High-Resolution 1 H and 27 Al NMR journal November 2007
Study of the Structure of OH Groups on MgO by 1D and 2D 1 H MAS NMR Combined with DFT Cluster Calculations journal December 2007
Study of MgO and Pt/MgO Systems by XRD, TPR, and 1 H MAS NMR journal February 1999
Light-induced conversion of an insulating refractory oxide into a persistent electronic conductor journal October 2002
Combining solid-state NMR spectroscopy with first-principles calculations – a guide to NMR crystallography journal January 2016
Hunting for hydrogen: random structure searching and prediction of NMR parameters of hydrous wadsleyite journal January 2016
Quantitative description of 1 H SQ and DQ coherences for the hydroxyl disorder within hydrous ringwoodite journal January 2018
Magnesium oxide clusters as promising candidates for hydrogen storage
  • Mojica-Sánchez, Juan Pablo; Zarate-López, Tania Isabel; Flores-Álvarez, José Manuel
  • Physical Chemistry Chemical Physics, Vol. 21, Issue 41 https://doi.org/10.1039/C9CP05075B
journal January 2019
Dynamics on the microsecond timescale in hydrous silicates studied by solid-state 2H NMR spectroscopy journal January 2010
Water in the Earth's mantle: a solid-state NMR study of hydrous wadsleyite journal January 2013
1 H shielding anisotropy in Mg(OH) 2 : The isolated OH − group journal February 1988
Role of magnesium fertilisers in agriculture: plant–soil continuum journal January 2015
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Norm-conserving and ultrasoft pseudopotentials for first-row and transition elements journal October 1994
Ultrathin hexagonal MgO nanoflakes coated medical textiles and their enhanced antibacterial activity journal October 2016
All-electron magnetic response with pseudopotentials: NMR chemical shifts journal May 2001
Generalized Gradient Approximation Made Simple journal October 1996
Crystallography Open Database – an open-access collection of crystal structures journal May 2009
Performance Assessment in Support of the 1996 Compliance Certification Application for the Waste Isolation Pilot Plant journal October 1999
Proton Distributions and Hydrogen Bonding in Crystalline and Glassy Hydrous Silicates and Related Inorganic Materials: Insights from High-Resolution Solid-State Nuclear Magnetic Resonance Spectroscopy journal December 2009
Nanorod-Superconductor Composites: A Pathway to Materials with High Critical Current Densities journal September 1996
Electrical Characterization of GaN Metal Oxide Semiconductor Diodes Using MgO as the Gate Oxide journal January 2002
Nonlinear optical response of Mg/MgO structures prepared by laser ablation method journal May 2017
Decontamination of Chemical Warfare Agents [English] journal May 2010
Dense hydrous magnesium silicates, phase D, and superhydrous B: New structural constraints from one- and two-dimensional 29Si and 1H NMR journal July 2008