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Yasui Y, Tansho M, Fujii K, Sakuda Y, Goto A, Ohki S, Mogami Y, Iijima T, Kobayashi S, Kawaguchi S, Osaka K, Ikeda K, Otomo T, Yashima M. Hidden chemical order in disordered Ba 7Nb 4MoO 20 revealed by resonant X-ray diffraction and solid-state NMR. Nat Commun 2023; 14:2337. [PMID: 37095089 PMCID: PMC10126145 DOI: 10.1038/s41467-023-37802-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 03/30/2023] [Indexed: 04/26/2023] Open
Abstract
The chemical order and disorder of solids have a decisive influence on the material properties. There are numerous materials exhibiting chemical order/disorder of atoms with similar X-ray atomic scattering factors and similar neutron scattering lengths. It is difficult to investigate such order/disorder hidden in the data obtained from conventional diffraction methods. Herein, we quantitatively determined the Mo/Nb order in the high ion conductor Ba7Nb4MoO20 by a technique combining resonant X-ray diffraction, solid-state nuclear magnetic resonance (NMR) and first-principle calculations. NMR provided direct evidence that Mo atoms occupy only the M2 site near the intrinsically oxygen-deficient ion-conducting layer. Resonant X-ray diffraction determined the occupancy factors of Mo atoms at the M2 and other sites to be 0.50 and 0.00, respectively. These findings provide a basis for the development of ion conductors. This combined technique would open a new avenue for in-depth investigation of the hidden chemical order/disorder in materials.
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Affiliation(s)
- Yuta Yasui
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-W4-17, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Masataka Tansho
- NMR Station, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki, 305-0003, Japan
| | - Kotaro Fujii
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-W4-17, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Yuichi Sakuda
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-W4-17, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Atsushi Goto
- NMR Station, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki, 305-0003, Japan
| | - Shinobu Ohki
- NMR Station, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki, 305-0003, Japan
| | - Yuuki Mogami
- NMR Station, National Institute for Materials Science (NIMS), 3-13 Sakura, Tsukuba, Ibaraki, 305-0003, Japan
| | - Takahiro Iijima
- Institute of Arts and Sciences, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata, Yamagata, 990-8560, Japan
| | - Shintaro Kobayashi
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Shogo Kawaguchi
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Keiichi Osaka
- Industrial Application and Partnership Division, Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Kazutaka Ikeda
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
- J-PARC Center, High Energy Accelerator Research Organization (KEK), 2-4 Shirakata-Shirane, Tokai, Ibaraki, 319-1106, Japan
- School of High Energy Accelerator Science, The Graduate University for Advanced Studies, 203-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
| | - Toshiya Otomo
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
- J-PARC Center, High Energy Accelerator Research Organization (KEK), 2-4 Shirakata-Shirane, Tokai, Ibaraki, 319-1106, Japan
- School of High Energy Accelerator Science, The Graduate University for Advanced Studies, 203-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
- Graduate School of Science and Engineering, Ibaraki University, 162-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan
| | - Masatomo Yashima
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-W4-17, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan.
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2
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Griffith KJ, Ding F, Flynn S. Solid-state nuclear magnetic resonance of spin-9/2 nuclei 115 In and 209 Bi in functional inorganic complex oxides. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2021; 59:1077-1088. [PMID: 34081358 DOI: 10.1002/mrc.5183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/24/2021] [Accepted: 05/29/2021] [Indexed: 05/02/2023]
Abstract
Indium and bismuth are technologically important elements, in particular as oxides for optoelectronic applications. 115 In and 209 Bi are both I = 9/2 nuclei with high natural abundances and moderately high frequencies but large nuclear electric quadrupole moments. Leveraging the quadrupolar interaction as a measure of local symmetry and polyhedral distortions for these nuclei could provide powerful insights on a range of applied materials. However, the absence of reported nuclear magnetic resonance (NMR) parameters on these nuclei, particularly in oxides, hinders their use by the broader materials community. In this contribution, solid-state 115 In and 209 Bi NMR of three recently discovered quaternary bismuth or indium oxides are reported, supported by density functional theory calculations, numerical simulations, diffraction and additional multinuclear (27 Al, 69,71 Ga, and 121 Sb) solid-state NMR measurements. The compounds LiIn2 SbO6 , BiAlTeO6 , and BiGaTeO6 are measured without special equipment at 9.4 T, demonstrating that wideline techniques such as the QCPMG pulse sequence and frequency-stepped acquisition can enable straightforward extraction of quadrupolar tensor information in I = 9/2 115 In and 209 Bi even in sites with large quadrupolar coupling constants. Relationships are described between the NMR observables and local site symmetry. These are amongst the first reports of the NMR parameters of 115 In, 121 Sb, and 209 Bi in oxides.
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Affiliation(s)
- Kent J Griffith
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA
| | - Fenghua Ding
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA
| | - Steven Flynn
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA
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3
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Li Z, Xi X, Chen J, Liu E, Wu G, Wang W. Electric field gradients in 2H-NbSe 2: 93Nb NMR measurements and first-principles calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 33:045404. [PMID: 32990659 DOI: 10.1088/1361-648x/abbc6a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/19/2020] [Indexed: 06/11/2023]
Abstract
Accurate atomic scale structure is of importance for revealing the still mysterious electronic phase transitions in a famous 2D metal, 2H-NbSe2. In this work, the electric field gradients (EFGs) of 2H-NbSe2at Nb sites in the normal state were investigated by93Nb nuclear magnetic resonance spectroscopy in combination with first-principles computations. The previousT3/2and linearTmodels for describing the temperature dependent EFGs were tested and discussed according to our measured and theoretically computed EFG data in this two-dimensional metal.
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Affiliation(s)
- Zefang Li
- State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xuekui Xi
- State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Jie Chen
- State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Enke Liu
- State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Guangheng Wu
- State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Wenhong Wang
- State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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4
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Papulovskiy E, Kirik SD, Khabibulin DF, Shubin AA, Bondareva VM, Samoilo AS, Lapina OB. Condensation of ammonium niobium oxalate studied by NMR crystallography and X-ray powder diffraction. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.01.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Sasaki A, Tsutsumi Y, Amoureux JP. Accelerating high-resolution NMR of half-integer quadrupolar nuclei in solids: SPAM-MQMAS and SPAM-STMAS. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2020; 108:101668. [PMID: 32645557 DOI: 10.1016/j.ssnmr.2020.101668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/07/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
In solid-state NMR, multiple-quantum MAS (MQMAS) and satellite-transition MAS (STMAS) experiments are well-established techniques to obtain high-resolution spectra of half-integer quadrupolar nuclei. In 2004 and 2005, a soft-pulse-added-mixing (SPAM) concept was introduced by Gan and Amoureux to enhance the S/N ratio of MQMAS and STMAS experiments. Despite their robustness and simplicity, SPAM approaches have not yet been widely applied. Here, we further exploit SPAM concepts for sensitivity enhancement upon acquisition of two-dimensional MQMAS and STMAS spectra and also establish a general procedure upon implementation of SPAM-MQMAS and SPAM-STMAS NMR. Its effectiveness and ease in experimental setup are demonstrated using simulations and experiments performed on I = 3/2 (23Na, 87Rb), 5/2 (27Al, 85Rb) and 9/2 (93Nb) nuclei with a variety of quadrupolar coupling constants (CQ). Compared to the conventional z-filter methods, sensitivity enhancements in between 2 and 4 are achievable with SPAM. We recommend to use SPAM with a ratio of 4:1 for the number of echoes and antiechoes to safely maximize the sensitivity and resolution simultaneously. In addition, a comparison of the experimental approaches is made in the context of SPAM-MQMAS and SPAM-STMAS NMR with respect to repetition delay and spinning frequency, aiming to discuss the precautions upon making a judicious choice of high-resolution NMR methods of half-integer quadrupolar nuclei.
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Affiliation(s)
- Akiko Sasaki
- Bruker Japan K.K, 3-9, Moriya-cho, Kanagawa-ku, Yokohama-shi, Kanagawa, 221-0022, Japan
| | - Yu Tsutsumi
- Bruker Japan K.K, 3-9, Moriya-cho, Kanagawa-ku, Yokohama-shi, Kanagawa, 221-0022, Japan
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unit of Catalysis and Chemistry of Solids, F-59000, Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166, Wissembourg, France; RIKEN RSC NMR Science and Development Division, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa, 230-0045, Japan.
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6
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Rees GJ, Day SP, Barnsley KE, Iuga D, Yates JR, Wallis JD, Hanna JV. Measuring multiple 17O–13C J-couplings in naphthalaldehydic acid: a combined solid state NMR and density functional theory approach. Phys Chem Chem Phys 2020; 22:3400-3413. [DOI: 10.1039/c9cp03977e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined multinuclear solid-state NMR and a density functional theory computational approach, with SIMPSON simulations, is evaluated to determine the four heteronuclear 1J(13C,17O) couplings in naphthalaldehydic acid.
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Affiliation(s)
| | | | | | - Dinu Iuga
- Department of Physics
- University of Warwick
- Coventry
- UK
| | | | - John D. Wallis
- School of Science and Technology
- Nottingham Trent University
- Nottingham
- UK
| | - John V. Hanna
- Department of Physics
- University of Warwick
- Coventry
- UK
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7
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Holmes ST, Schurko RW. A DFT/ZORA Study of Cadmium Magnetic Shielding Tensors: Analysis of Relativistic Effects and Electronic-State Approximations. J Chem Theory Comput 2019; 15:1785-1797. [PMID: 30721042 DOI: 10.1021/acs.jctc.8b01296] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Theoretical considerations are discussed for the accurate prediction of cadmium magnetic shielding tensors using relativistic density functional theory (DFT). Comparison is made between calculations that model the extended lattice of the cadmium-containing solids using periodic boundary conditions and pseudopotentials with calculations that use clusters of atoms. The all-electron cluster-based calculations afford an opportunity to examine the importance of (i) relativistic effects on cadmium magnetic shielding tensors, as introduced through the ZORA Hamiltonian at either the scalar (SC) or spin-orbit (SO) levels and (ii) variation in the class of the DFT approximation. Twenty-three combinations of pseudopotentials or all-electron methods, DFT functionals, and relativistic treatments are assessed for the prediction of the principal components of the magnetic shielding tensors of 30 cadmium sites. We find that the inclusion of SO coupling can increase the cadmium magnetic shielding by as much as ca. 1100 ppm for a certain principal values; these effects are most pronounced for cadmium sites featuring bonds to other heavy atoms such as cadmium, iodine, or selenium. The best agreement with experimental values is found at the ZORA SO level in combination with a hybrid DFT method featuring a large admixture of Hartree-Fock exchange such as BH&HLYP. Finally, a theoretical examination is presented of the magnetic shielding tensor of the Cd(I) site in Cd2(AlCl4)2.
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Affiliation(s)
- Sean T Holmes
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , ON , Canada N9B 3P4
| | - Robert W Schurko
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , ON , Canada N9B 3P4
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8
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Saouli I, Landron S, Peric B, Boutarfaia A, Kouvatas C, Le Pollès L, Cuny J, Gautier R. Computing of 93Nb NMR Parameters of Solid-State Niobates. The Geometry Matters. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619030090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Halat DM, Britto S, Griffith KJ, Jónsson E, Grey CP. Natural abundance solid-state 33S NMR study of NbS3: applications for battery conversion electrodes. Chem Commun (Camb) 2019; 55:12687-12690. [DOI: 10.1039/c9cc06059f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first known solid-state 33S NMR spectrum of disulfide (S22−) anions is reported, in the Li-ion battery conversion material NbS3.
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Affiliation(s)
- David M. Halat
- Department of Chemistry, University of Cambridge, Lensfield Road
- Cambridge
- UK
| | - Sylvia Britto
- Department of Chemistry, University of Cambridge, Lensfield Road
- Cambridge
- UK
| | - Kent J. Griffith
- Department of Chemistry, University of Cambridge, Lensfield Road
- Cambridge
- UK
| | - Erlendur Jónsson
- Department of Chemistry, University of Cambridge, Lensfield Road
- Cambridge
- UK
- Department of Physics, Chalmers University of Technology, 412 96
- Gothenburg
| | - Clare P. Grey
- Department of Chemistry, University of Cambridge, Lensfield Road
- Cambridge
- UK
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10
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Fang Y, Page SJ, Rees GJ, Avdeev M, Hanna JV, White TJ. Crystal Chemistry of Vanadium-Bearing Ellestadite Waste Forms. Inorg Chem 2018; 57:9122-9132. [PMID: 30010324 DOI: 10.1021/acs.inorgchem.8b01160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Vanadate ellestadites Ca10(SiO4) x(VO4)6-2 x(SO4) xCl2, serving as prototype crystalline matrices for the fixation of pentavalent toxic metals (V, Cr, As), were synthesized and characterized by powder X-ray and neutron diffraction (PXRD and PND), electron probe microanalysis (EPMA), Fourier transform infrared spectroscopy (FTIR), and solid-state nuclear magnetic resonance (SS-NMR). The ellestadites 0.19 < x < 3 adopt the P63/ m structure, while the vanadate endmember Ca10(VO4)6Cl2 is triclinic with space group P1̅. A miscibility gap exists for 0.77 < x < 2.44. The deficiency of Cl in the structure leads to short-range disorder in the tunnel. Toxicity characteristic leaching testing (TCLP) showed the incorporation of vanadium increases ellestadite solubility, and defined a waste loading limit that should not exceed 25 atom % V to ensure small release levels.
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Affiliation(s)
- Yanan Fang
- School of Materials Science & Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
| | - Sam J Page
- Department of Physics , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , United Kingdom
| | - Gregory J Rees
- Department of Physics , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , United Kingdom
| | - Maxim Avdeev
- Australian Nuclear Science and Technology Organisation , Locked Bag 2001, Kirrawee DC , New South Wales 2232 , Australia
| | - John V Hanna
- Department of Physics , University of Warwick , Gibbet Hill Road , Coventry CV4 7AL , United Kingdom
| | - Tim J White
- School of Materials Science & Engineering , Nanyang Technological University , 50 Nanyang Avenue , 639798 Singapore
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11
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Hooper TJN, Partridge TA, Rees GJ, Keeble DS, Powell NA, Smith ME, Mikheenko IP, Macaskie LE, Bishop PT, Hanna JV. Direct solid state NMR observation of the 105Pd nucleus in inorganic compounds and palladium metal systems. Phys Chem Chem Phys 2018; 20:26734-26743. [DOI: 10.1039/c8cp02594k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although 105Pd is a very challenging nucleus for solid state NMR, these initial observations demonstrate its potential for characterising catalytically relevant Pd metal systems.
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Affiliation(s)
| | | | | | - Dean S. Keeble
- Diamond Light Source
- Harwell Science and Innovation Campus
- Didcot
- UK
| | | | | | | | | | | | - John V. Hanna
- Department of Physics
- University of Warwick
- Coventry
- UK
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12
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Kreissl HT, Li MMJ, Peng YK, Nakagawa K, Hooper TJN, Hanna JV, Shepherd A, Wu TS, Soo YL, Tsang SCE. Structural Studies of Bulk to Nanosize Niobium Oxides with Correlation to Their Acidity. J Am Chem Soc 2017; 139:12670-12680. [DOI: 10.1021/jacs.7b06856] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Hannah T. Kreissl
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Molly M. J. Li
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Yung-Kang Peng
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Keizo Nakagawa
- Centre
for Membrane and Film Technology, Graduate School of Science, Technology
and Innovation, Kobe University, Kobe 657-8501, Japan
| | - Thomas J. N. Hooper
- Department
of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - John V. Hanna
- Department
of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Ashley Shepherd
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
| | - Tai-Sing Wu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yun-Liang Soo
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - S. C. Edman Tsang
- Department
of Chemistry, University of Oxford, Oxford OX1 3QR, United Kingdom
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13
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Kobera L, Southern SA, Frost JM, Bryce DL. Multinuclear solid-state magnetic resonance study of oxo-bridged diniobium and quadruply-bonded dimolybdenum carboxylate clusters. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2017; 84:20-27. [PMID: 27986401 DOI: 10.1016/j.ssnmr.2016.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/01/2016] [Accepted: 12/02/2016] [Indexed: 06/06/2023]
Abstract
Carboxylate paddlewheels and their oxo-bridged analogues constitute ideal building blocks for the assembly of two- and three-dimensional framework materials. Here, we present a multinuclear (1H, 13C, 93Nb, 95Mo) magnetic resonance study of solid samples of Nb2OCl6(O2Ph)2 (1), Mo2(O2CMe)4 (2), and Mo2(O2CCHF2)4 (3). High-resolution proton and 13C CP/MAS NMR spectra provide valuable information on structure and crystal symmetry and on cocrystallized solvent. 93Nb solid-state NMR spectra of 1 provide quadrupolar coupling constants and chemical shift tensors which are characteristic of the axially asymmetric Nb-O-Nb bridging environment. 95Mo solid-state NMR spectra of 2 and 3 provide quadrupolar coupling constants and chemical shift tensors which are directly characteristic of the molybdenum-molybdenum quadruple bonds in these compounds. The quadruple bonds are characterized by particularly large 95Mo chemical shift tensor spans on the order of 5500ppm. Density functional theoretical computations provide good agreement with the 93Nb and 95Mo experimental data, with some exceptions noted. This work demonstrates possible NMR approaches to characterize more complex framework materials and provides key insight into the Mo-Mo quadruple bond.
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Affiliation(s)
- Libor Kobera
- Department of Chemistry and Biomolecular Sciences&Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N6N5, Canada
| | - Scott A Southern
- Department of Chemistry and Biomolecular Sciences&Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N6N5, Canada
| | - Jamie M Frost
- Department of Chemistry and Biomolecular Sciences&Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N6N5, Canada
| | - David L Bryce
- Department of Chemistry and Biomolecular Sciences&Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, Ontario K1N6N5, Canada.
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14
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Dabachi J, Body M, Galven C, Boucher F, Legein C. Preparation-Dependent Composition and O/F Ordering in NbO 2F and TaO 2F. Inorg Chem 2017; 56:5219-5232. [PMID: 28398062 DOI: 10.1021/acs.inorgchem.7b00355] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Through an analysis combining powder XRD, TGA, and 19F and 1H solid-state NMR, it is confirmed for NbO2F and shown for TaO2F that both contain hydroxyl defects and metal vacancies when prepared by aqueous solution synthesis. The formulations M1-x□xO2-5x(OH,F)1+5x of both the samples are determined. The effects of the usually applied thermal treatments are examined. Obtaining pure NbO2F and TaO2F from these samples, that is, fully removing metal vacancies and hydroxide, while avoiding the formation of M2O5, is not that easy. Since thermal treatments result in dehydroxylation and defluorination, it requires, at least, a larger amount of fluorine than metal initially, which may not be the case. We also confirm that the solid-state synthesis is an efficient method to avoid metal vacancies and hydroxyl defects in NbO2F and then apply it to the synthesis of TaO2F. The local structure of NbO2F and TaO2F is poorly described by an ideal cubic ReO3-type model with O and F randomly distributed over the available anion sites. Since O/F ordering was previously highlighted, NbO2F and TaO2F cubic 3 × 3 × 3 supercells featuring -M-O-M-O-M-F- chains along ⟨100⟩ have been built and geometry optimized. These optimized supercells lead to more realistic structures than the previously proposed models, that is, really disordered structures with angularly and radially distorted MX6 octahedra as expected in disordered compounds. Moreover, the structural modeling of NbO2F and TaO2F by these geometry-optimized supercells is supported by the computed 19F and 93Nb NMR parameters, which give very good agreement with the experimental ones.
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Affiliation(s)
- Jamal Dabachi
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Monique Body
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Cyrille Galven
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Florent Boucher
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS , 2 Rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - Christophe Legein
- Université Bretagne Loire, Université du Maine , UMR CNRS 6283, Institut des Molécules et des Matériaux du Mans (IMMM), Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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15
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Koito Y, Rees GJ, Hanna JV, Li MMJ, Peng YK, Puchtler T, Taylor R, Wang T, Kobayashi H, Teixeira IF, Khan MA, Kreissl HT, Tsang SCE. Structure-Activity Correlations for Brønsted Acid, Lewis Acid, and Photocatalyzed Reactions of Exfoliated Crystalline Niobium Oxides. ChemCatChem 2016. [DOI: 10.1002/cctc.201601131] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yusuke Koito
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
| | - Gregory J. Rees
- Department of Physics; University of Warwick; Gibbet Hill Road Coventry CV4 7AL UK
| | - John V. Hanna
- Department of Physics; University of Warwick; Gibbet Hill Road Coventry CV4 7AL UK
| | - Molly M. J. Li
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
| | - Yung-Kang Peng
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
| | - Tim Puchtler
- Department of Physics, Clarendon Laboratory; University of Oxford; Oxford OX1 3PU UK
| | - Robert Taylor
- Department of Physics, Clarendon Laboratory; University of Oxford; Oxford OX1 3PU UK
| | - Tong Wang
- Department of Physics, Clarendon Laboratory; University of Oxford; Oxford OX1 3PU UK
| | - Hisayoshi Kobayashi
- Department of Chemistry and Materials Technology; Kyoto Institute of Technology; Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Ivo F. Teixeira
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
| | - M. Abdullah Khan
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
| | - Hannah T. Kreissl
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
| | - S. C. Edman Tsang
- Inorganic Chemistry Laboratory; University of Oxford; South Parks Road Oxford Oxfordshire OX1 3QR UK
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16
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Deblonde GJP, Coelho-Diogo C, Chagnes A, Cote G, Smith ME, Hanna JV, Iuga D, Bonhomme C. Multinuclear Solid-State NMR Investigation of Hexaniobate and Hexatantalate Compounds. Inorg Chem 2016; 55:5946-56. [DOI: 10.1021/acs.inorgchem.6b00345] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gauthier J.-P. Deblonde
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
- ERAMET Research, Hydrometallurgy department, 1 avenue Albert Einstein, F-78193 Trappes, France
| | - Cristina Coelho-Diogo
- Institut des Matériaux de Paris Centre (IMPC-UPMC-FR2482), site collège de France, 75005 Paris, France
| | - Alexandre Chagnes
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Gérard Cote
- PSL Research University, Chimie ParisTech-CNRS,
Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, 75005 Paris, France
| | - Mark E. Smith
- Vice-Chancellor’s
Office, University House, Lancaster University, Lancaster LA1 4YW, U.K
| | - John V. Hanna
- Department
of Physics, University of Warwick, Coventry CV4 7AL, U.K
| | - Dinu Iuga
- Department
of Physics, University of Warwick, Coventry CV4 7AL, U.K
| | - Christian Bonhomme
- Sorbonne Universités, UPMC Univ Paris 06,
UMR CNRS 7574, Laboratoire de Chimie de la Matière Condensée
de Paris, Collège de France, 11 place Marcelin Berthelot, 75005, Paris, France
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17
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Ashbrook SE, McKay D. Combining solid-state NMR spectroscopy with first-principles calculations - a guide to NMR crystallography. Chem Commun (Camb) 2016; 52:7186-204. [PMID: 27117884 DOI: 10.1039/c6cc02542k] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Recent advances in the application of first-principles calculations of NMR parameters to periodic systems have resulted in widespread interest in their use to support experimental measurement. Such calculations often play an important role in the emerging field of "NMR crystallography", where NMR spectroscopy is combined with techniques such as diffraction, to aid structure determination. Here, we discuss the current state-of-the-art for combining experiment and calculation in NMR spectroscopy, considering the basic theory behind the computational approaches and their practical application. We consider the issues associated with geometry optimisation and how the effects of temperature may be included in the calculation. The automated prediction of structural candidates and the treatment of disordered and dynamic solids are discussed. Finally, we consider the areas where further development is needed in this field and its potential future impact.
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Affiliation(s)
- Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews, KY16 9ST, UK.
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18
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Widdifield CM, Perras FA, Bryce DL. Solid-state (185/187)Re NMR and GIPAW DFT study of perrhenates and Re2(CO)10: chemical shift anisotropy, NMR crystallography, and a metal-metal bond. Phys Chem Chem Phys 2015; 17:10118-34. [PMID: 25790263 DOI: 10.1039/c5cp00602c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Advances in solid-state nuclear magnetic resonance (SSNMR) methods, such as dynamic nuclear polarization (DNP), intricate pulse sequences, and increased applied magnetic fields, allow for the study of systems which even very recently would be impractical. However, SSNMR methods using certain quadrupolar probe nuclei (i.e., I > 1/2), such as (185/187)Re remain far from fully developed due to the exceedingly strong interaction between the quadrupole moment of these nuclei and local electric field gradients (EFGs). We present a detailed high-field (B0 = 21.1 T) experimental SSNMR study on several perrhenates (KReO4, AgReO4, Ca(ReO4)2·2H2O), as well as ReO3 and Re2(CO)10. We propose solid ReO3 as a new rhenium SSNMR chemical shift standard due to its reproducible and sharp (185/187)Re NMR resonances. We show that for KReO4, previously poorly understood high-order quadrupole-induced effects (HOQIE) on the satellite transitions can be used to measure the EFG tensor asymmetry (i.e., ηQ) to nearly an order-of-magnitude greater precision than competing SSNMR and nuclear quadrupole resonance (NQR) approaches. Samples of AgReO4 and Ca(ReO4)2·2H2O enable us to comment on the effects of counter-ions and hydration upon Re(vii) chemical shifts. Calcium-43 and (185/187)Re NMR tensor parameters allow us to conclude that two proposed crystal structures for Ca(ReO4)2·2H2O, which would be considered as distinct, are in fact the same structure. Study of Re2(CO)10 provides insights into the effects of Re-Re bonding on the rhenium NMR tensor parameters and rhenium oxidation state on the Re chemical shift value. As overtone NQR experiments allowed us to precisely measure the (185/187)Re EFG tensor of Re2(CO)10, we were able to measure rhenium chemical shift anisotropy (CSA) for the first time in a powdered sample. Experimental observations are supported by gauge-including projector augmented-wave (GIPAW) density functional theory (DFT) calculations, with NMR tensor calculations also provided for NH4ReO4, NaReO4 and RbReO4. These calculations are able to reproduce many of the experimental trends in rhenium δiso values and EFG tensor magnitudes. Using KReO4 as a prototypical perrhenate-containing system, we establish a correlation between the tetrahedral shear strain parameter (|ψ|) and the nuclear electric quadrupolar coupling constant (CQ), which enables the refinement of the structure of ND4ReO4. Shortcomings in traditional DFT approaches, even when including relativistic effects via the zeroth-order regular approximation (ZORA), for calculating rhenium NMR tensor parameters are identified for Re2(CO)10.
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Affiliation(s)
- Cory M Widdifield
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Pvt., Ottawa, Ontario, Canada.
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19
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Perić B, Gautier R, Pickard CJ, Bosiočić M, Grbić MS, Požek M. Solid-state NMR/NQR and first-principles study of two niobium halide cluster compounds. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2014; 59-60:20-30. [PMID: 24581866 DOI: 10.1016/j.ssnmr.2014.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 01/31/2014] [Accepted: 02/05/2014] [Indexed: 06/03/2023]
Abstract
Two hexanuclear niobium halide cluster compounds with a [Nb6X12](2+) (X=Cl, Br) diamagnetic cluster core, have been studied by a combination of experimental solid-state NMR/NQR techniques and PAW/GIPAW calculations. For niobium sites the NMR parameters were determined by using variable Bo field static broadband NMR measurements and additional NQR measurements. It was found that they possess large positive chemical shifts, contrary to majority of niobium compounds studied so far by solid-state NMR, but in accordance with chemical shifts of (95)Mo nuclei in structurally related compounds containing [Mo6Br8](4+) cluster cores. Experimentally determined δiso((93)Nb) values are in the range from 2,400 to 3,000 ppm. A detailed analysis of geometrical relations between computed electric field gradient (EFG) and chemical shift (CS) tensors with respect to structural features of cluster units was carried out. These tensors on niobium sites are almost axially symmetric with parallel orientation of the largest EFG and the smallest CS principal axes (Vzz and δ33) coinciding with the molecular four-fold axis of the [Nb6X12](2+) unit. Bridging halogen sites are characterized by large asymmetry of EFG and CS tensors, the largest EFG principal axis (Vzz) is perpendicular to the X-Nb bonds, while intermediate EFG principal axis (Vyy) and the largest CS principal axis (δ11) are oriented in the radial direction with respect to the center of the cluster unit. For more symmetrical bromide compound the PAW predictions for EFG parameters are in better correspondence with the NMR/NQR measurements than in the less symmetrical chlorine compound. Theoretically predicted NMR parameters of bridging halogen sites were checked by (79/81)Br NQR and (35)Cl solid-state NMR measurements.
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Affiliation(s)
- Berislav Perić
- Laboratory for Solid-State and Complex Compounds Chemistry, Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000-HR, Zagreb, Croatia.
| | - Régis Gautier
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Ecole Nationale Supérieure de Chimie de Rennes, CS 50837, 35708 Rennes Cedex 7, France
| | - Chris J Pickard
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E6BT, UK
| | - Marko Bosiočić
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička cesta 32, HR-10000 Zagreb, Croatia
| | - Mihael S Grbić
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička cesta 32, HR-10000 Zagreb, Croatia
| | - Miroslav Požek
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička cesta 32, HR-10000 Zagreb, Croatia
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20
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Srebro M, Autschbach J. Computational Analysis of47/49Ti NMR Shifts and Electric Field Gradient Tensors of Half-Titanocene Complexes: Structure-Bonding-Property Relationships. Chemistry 2013; 19:12018-33. [DOI: 10.1002/chem.201301301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Indexed: 11/08/2022]
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21
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Papulovskiy E, Shubin AA, Terskikh VV, Pickard CJ, Lapina OB. Theoretical and experimental insights into applicability of solid-state 93Nb NMR in catalysis. Phys Chem Chem Phys 2013; 15:5115-31. [DOI: 10.1039/c3cp44016h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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22
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Charpentier T, Menziani MC, Pedone A. Computational simulations of solid state NMR spectra: a new era in structure determination of oxide glasses. RSC Adv 2013. [DOI: 10.1039/c3ra40627j] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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23
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Bonhomme C, Gervais C, Babonneau F, Coelho C, Pourpoint F, Azaïs T, Ashbrook SE, Griffin JM, Yates JR, Mauri F, Pickard CJ. First-principles calculation of NMR parameters using the gauge including projector augmented wave method: a chemist's point of view. Chem Rev 2012; 112:5733-79. [PMID: 23113537 DOI: 10.1021/cr300108a] [Citation(s) in RCA: 312] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Christian Bonhomme
- Laboratoire de Chimie de la Matière Condensée de Paris, Université Pierre et Marie Curie, CNRS UMR, Collège de France, France.
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24
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Sutrisno A, Terskikh VV, Shi Q, Song Z, Dong J, Ding SY, Wang W, Provost BR, Daff TD, Woo TK, Huang Y. Characterization of Zn-Containing Metal-Organic Frameworks by Solid-State67Zn NMR Spectroscopy and Computational Modeling. Chemistry 2012; 18:12251-9. [DOI: 10.1002/chem.201201563] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Indexed: 11/06/2022]
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25
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Caruso F, Chan EJ, Hanna JV, Marchetti F, Pettinari C, Di Nicola C, Pettinari R, Pizzabiocca A, Rees GJ, Quigley D, Rossi M, Skelton BW, Sobolev AN, White AH. The Question of cis versus trans Configuration in Octahedral Metal Diketonates: An In-Depth Investigation on Diorganobis(4-acyl-5-pyrazolonato)tin(IV) Complexes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Blanc F, Middlemiss DS, Gan Z, Grey CP. Defects in Doped LaGaO3 Anionic Conductors: Linking NMR Spectral Features, Local Environments, and Defect Thermodynamics. J Am Chem Soc 2011; 133:17662-72. [DOI: 10.1021/ja2053557] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Frédéric Blanc
- Department of Chemistry, State University of New York, Stony Brook, New York 11790-3400, United States
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Derek S. Middlemiss
- Department of Chemistry, State University of New York, Stony Brook, New York 11790-3400, United States
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Zhehong Gan
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310-3706, United States
| | - Clare P. Grey
- Department of Chemistry, State University of New York, Stony Brook, New York 11790-3400, United States
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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27
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Folliet N, Roiland C, Bégu S, Aubert A, Mineva T, Goursot A, Selvaraj K, Duma L, Tielens F, Mauri F, Laurent G, Bonhomme C, Gervais C, Babonneau F, Azaïs T. Investigation of the interface in silica-encapsulated liposomes by combining solid state NMR and first principles calculations. J Am Chem Soc 2011; 133:16815-27. [PMID: 21899369 DOI: 10.1021/ja201002r] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In the context of nanomedicine, liposils (liposomes and silica) have a strong potential for drug storage and release schemes: such materials combine the intrinsic properties of liposome (encapsulation) and silica (increased rigidity, protective coating, pH degradability). In this work, an original approach combining solid state NMR, molecular dynamics, first principles geometry optimization, and NMR parameters calculation allows the building of a precise representation of the organic/inorganic interface in liposils. {(1)H-(29)Si}(1)H and {(1)H-(31)P}(1)H Double Cross-Polarization (CP) MAS NMR experiments were implemented in order to explore the proton chemical environments around the silica and the phospholipids, respectively. Using VASP (Vienna Ab Initio Simulation Package), DFT calculations including molecular dynamics, and geometry optimization lead to the determination of energetically favorable configurations of a DPPC (dipalmitoylphosphatidylcholine) headgroup adsorbed onto a hydroxylated silica surface that corresponds to a realistic model of an amorphous silica slab. These data combined with first principles NMR parameters calculations by GIPAW (Gauge Included Projected Augmented Wave) show that the phosphate moieties are not directly interacting with silanols. The stabilization of the interface is achieved through the presence of water molecules located in-between the head groups of the phospholipids and the silica surface forming an interfacial H-bonded water layer. A detailed study of the (31)P chemical shift anisotropy (CSA) parameters allows us to interpret the local dynamics of DPPC in liposils. Finally, the VASP/solid state NMR/GIPAW combined approach can be extended to a large variety of organic-inorganic hybrid interfaces.
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Affiliation(s)
- Nicolas Folliet
- UPMC Univ Paris 06 & CNRS, UMR 7574, Chimie de la Matière Condensée de Paris, Collège de France, 11, place Marcelin Berthelot, F-75005, Paris, France
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28
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Widdifield CM, Bryce DL. A multinuclear solid-state magnetic resonance and GIPAW DFT study of anhydrous calcium chloride and its hydrates. CAN J CHEM 2011. [DOI: 10.1139/v11-009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The group 2 metal halides and corresponding metal halide hydrates serve as useful model systems for understanding the relationship between the electric field gradient (EFG) and chemical shift (CS) tensors at the halogen nuclei and the local molecular and electronic structure. Here, we present a 35/37Cl and 43Ca solid-state nuclear magnetic resonance (SSNMR) study of CaCl2. The 35Cl nuclear quadrupole coupling constant, 8.82(8) MHz, and the isotropic chlorine CS, 105(8) ppm (with respect to dilute NaCl(aq)), are different from the values reported previously for this compound, as well as those reported for CaCl2·2H2O. Chlorine-35 SSNMR spectra are also presented for CaCl2·6H2O, and when taken in concert, the SSNMR observations for CaCl2, CaCl2·2H2O, and CaCl2·6H2O clearly demonstrate the sensitivity of the chlorine EFG and CS tensors to the local symmetry and to changes in the hydration state. For example, the value of δiso decreases with increasing hydration. Gauge-including projector-augmented wave (GIPAW) density functional theory (DFT) calculations are used to substantiate the experimental SSNMR findings, to rule out the presence of other hydrates in our samples, to refine the hydrogen positions in CaCl2·2H2O, and to explore the isostructural relationship between CaCl2 and CaBr2. Finally, the 43Ca CS tensor span is measured to be 31(5) ppm for anhydrous CaCl2, which represents only the fifth CS tensor span measurement for calcium.
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Affiliation(s)
- Cory M. Widdifield
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, ON K1N 6N5, Canada
| | - David L. Bryce
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Private, Ottawa, ON K1N 6N5, Canada
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29
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Charpentier T. The PAW/GIPAW approach for computing NMR parameters: a new dimension added to NMR study of solids. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2011; 40:1-20. [PMID: 21612895 DOI: 10.1016/j.ssnmr.2011.04.006] [Citation(s) in RCA: 235] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 04/24/2011] [Accepted: 04/25/2011] [Indexed: 05/18/2023]
Abstract
In 2001, Mauri and Pickard introduced the gauge including projected augmented wave (GIPAW) method that enabled for the first time the calculation of all-electron NMR parameters in solids, i.e. accounting for periodic boundary conditions. The GIPAW method roots in the plane wave pseudopotential formalism of the density functional theory (DFT), and avoids the use of the cluster approximation. This method has undoubtedly revitalized the interest in quantum chemical calculations in the solid-state NMR community. It has quickly evolved and improved so that the calculation of the key components of NMR interactions, namely the shielding and electric field gradient tensors, has now become a routine for most of the common nuclei studied in NMR. Availability of reliable implementations in several software packages (CASTEP, Quantum Espresso, PARATEC) make its usage more and more increasingly popular, maybe indispensable in near future for all material NMR studies. The majority of nuclei of the periodic table have already been investigated by GIPAW, and because of its high accuracy it is quickly becoming an essential tool for interpreting and understanding experimental NMR spectra, providing reliable assignments of the observed resonances to crystallographic sites or enabling a priori prediction of NMR data. The continuous increase of computing power makes ever larger (and thus more realistic) systems amenable to first-principles analysis. In the near future perspectives, as the incorporation of dynamical effects and/or disorder are still at their early developments, these areas will certainly be the prime target.
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Affiliation(s)
- Thibault Charpentier
- CEA, IRAMIS, SIS2M, Laboratoire de Structure et Dynamique par Résonance Magnétique, UMR CEA-CNRS 3299, F-91191 Gif-sur-Yvette cedex, France.
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30
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Johnston KE, Griffin JM, Walton RI, Dawson DM, Lightfoot P, Ashbrook SE. 93Nb NMR and DFT investigation of the polymorphs of NaNbO3. Phys Chem Chem Phys 2011; 13:7565-76. [DOI: 10.1039/c1cp20258h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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31
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Sadoc A, Body M, Legein C, Biswal M, Fayon F, Rocquefelte X, Boucher F. NMR parameters in alkali, alkaline earth and rare earth fluorides from first principle calculations. Phys Chem Chem Phys 2011; 13:18539-50. [DOI: 10.1039/c1cp21253b] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Sutrisno A, Liu L, Xu J, Huang Y. Natural abundance solid-state 67Zn NMR characterization of microporous zinc phosphites and zinc phosphates at ultrahigh magnetic field. Phys Chem Chem Phys 2011; 13:16606-17. [DOI: 10.1039/c1cp20947g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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33
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Mitchell MR, Reader SW, Johnston KE, Pickard CJ, Whittle KR, Ashbrook SE. 119Sn MAS NMR and first-principles calculations for the investigation of disorder in stannate pyrochlores. Phys Chem Chem Phys 2011; 13:488-97. [DOI: 10.1039/c0cp01274b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Widdifield CM, Bryce DL. Solid-State 127I NMR and GIPAW DFT Study of Metal Iodides and Their Hydrates: Structure, Symmetry, and Higher-Order Quadrupole-Induced Effects. J Phys Chem A 2010; 114:10810-23. [DOI: 10.1021/jp108237x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Cory M. Widdifield
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Pvt., Ottawa, Ontario, Canada
| | - David L. Bryce
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie Pvt., Ottawa, Ontario, Canada
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35
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Hanna JV, Smith ME. Recent technique developments and applications of solid state NMR in characterising inorganic materials. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2010; 38:1-18. [PMID: 20605082 DOI: 10.1016/j.ssnmr.2010.05.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2010] [Revised: 05/29/2010] [Accepted: 05/31/2010] [Indexed: 05/04/2023]
Abstract
A broad overview is given of some key recent developments in solid state NMR techniques that have driven enhanced applications to inorganic materials science. Reference is made to advances in hardware, pulse sequences and associated computational methods (e.g. first principles calculations, spectral simulation), along with their combination to provide more information about solid phases. The resulting methodology has allowed more nuclei to be observed and more structural information to be extracted. Cross referencing between experimental parameters and their calculation from the structure has given an added dimension to NMR as a characterisation probe of materials. Emphasis is placed on the progress made in the last decade especially from those nuclei that were little studied previously. The general points about technique development and the increased range of nuclei observed are illustrated through some specific exemplars from inorganic materials science.
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Affiliation(s)
- J V Hanna
- Department of Physics, University of Warwick, Coventry CV47AL, UK
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36
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Johnston KE, Tang CC, Parker JE, Knight KS, Lightfoot P, Ashbrook SE. The Polar Phase of NaNbO3: A Combined Study by Powder Diffraction, Solid-State NMR, and First-Principles Calculations. J Am Chem Soc 2010; 132:8732-46. [DOI: 10.1021/ja101860r] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Karen E. Johnston
- School of Chemistry and EaStCHEM, University of St. Andrews, St. Andrews, KY16 9ST, U.K., Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, U.K., and ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, U.K
| | - Chiu C. Tang
- School of Chemistry and EaStCHEM, University of St. Andrews, St. Andrews, KY16 9ST, U.K., Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, U.K., and ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, U.K
| | - Julia E. Parker
- School of Chemistry and EaStCHEM, University of St. Andrews, St. Andrews, KY16 9ST, U.K., Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, U.K., and ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, U.K
| | - Kevin S. Knight
- School of Chemistry and EaStCHEM, University of St. Andrews, St. Andrews, KY16 9ST, U.K., Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, U.K., and ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, U.K
| | - Philip Lightfoot
- School of Chemistry and EaStCHEM, University of St. Andrews, St. Andrews, KY16 9ST, U.K., Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, U.K., and ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, U.K
| | - Sharon E. Ashbrook
- School of Chemistry and EaStCHEM, University of St. Andrews, St. Andrews, KY16 9ST, U.K., Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, U.K., and ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, U.K
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