Zobrazeno 1 - 10 of 91 pro vyhledávání: '"D. Hoebbel"'
1
Solid State NMR Interaction Parameters of Oxygens Linking Titanium and Silicon in Crystalline Cyclic Titanodiphenylsiloxanes
Autor: C. Gervais, Florence Babonneau, Mark E. Smith, D. Hoebbel
Publikováno v: Solid State Nuclear Magnetic Resonance. 17:2-14
17O static and magic angle spinning NMR spectra are reported from three crystalline cyclic titanodiphenylsiloxanes at magnetic fields of 5.6, 14.1, and 17.6 T. These compounds allow the NMR parameters characteristic of Ti–O–Si environments to be
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f52c49045f31dae36d33e01b822ebcf1
https://doi.org/10.1006/snmr.2000.0001
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2
27Al NMR studies of aluminosilicate solutions : influences of the second coordination sphere on the shielding of aluminium
Autor: D. Hoebbel, D. Mueller, W. Gessner
Aluminosilicate solutions have been studied by 27 Al NMR to investigate effects of the second coordination sphere on AI shielding. The spectra show four distinct peaks. 27 A1 chemical shifts are compared with 29 Si data. An analogous classification o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::192d0dc8591106f0254e479e53ecd70b
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4
Structural changes of mullite precursors in presence of polyethyleneimine
Autor: Emilija Tkalčec, Rüdiger Nass, Helmut Schmidt, D Hoebbel
Thermal properties of two powders derived from the same calcined gel with a stoichiometric mullite composition (atomic ratio Al/Si = 3/1) wet milled in different solutions were studied by simultaneous differential thermal analysis, thermogravimetry a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95a5a71bdb13bfde8c102ed1f79d0509
https://www.bib.irb.hr/58732
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