Proton NMR studies of the NaAlH4 structure

Valiente-Banuet, L. E.; Majer, Günter; Müller, K.

doi:10.1016/j.jmr.2009.07.011

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Proton NMR studies of the NaAlH₄ structure

Valiente-Banuet, L. E., Majer, G., & Müller, K. (2009). Proton NMR studies of the NaAlH₄ structure. Journal of Magnetic Resonance, 200(2), 280-284. doi:10.1016/j.jmr.2009.07.011.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-3E6E-4 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002E-5F2F-A

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Creators:
Valiente-Banuet, L. E., Author
Majer, Günter¹, Author
Müller, K., Author

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1Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_2364731

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Free keywords: NMR; Magic echo; Second moment; Structure determination; Chemical hydride; Sodium alanate; Hydrogen storage

Abstract: Advanced nuclear magnetic resonance (NMR) techniques were applied to study the local environments of hydrogen in NaAlH(4). Through a combined application of the magic echo (ME) and the magic Hahn echo (MHE) sequences the hetero- and homonuclear contributions to the dipolar second moment (M(2)) were determined separately. The obtained values are compared with the second moments calculated by the van Vleck formulae, using structural data determined by neutron scattering on NaAlD(4). This comparison indicates structural differences between NaAlH(4) and NaAlD(4). A model is suggested for the orientation of the [AlH(4)](-) tetrahedra in NaAlH(4), for which the calculated second moments are in good agreement with the experimentally observed values.

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Language(s): eng - English

Dates: Modified: 2009-07-09Submitted: 2009-07-14Published Online: 2009-07-14Date issued: 2009-10-01

Publication Status: Issued

Pages: 5

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Rev. Type: Peer

Identifiers: eDoc: 442749
DOI: 10.1016/j.jmr.2009.07.011
URI: https://www.ncbi.nlm.nih.gov/pubmed/19651530

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Title: Journal of Magnetic Resonance

Source Genre: Journal

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Publ. Info: San Diego [etc.] : Academic Press

Pages: - Volume / Issue: 200 (2) Sequence Number: - Start / End Page: 280 - 284 Identifier: ISSN: 0022-2364
CoNE: https://pure.mpg.de/cone/journals/resource/954922651175_1