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Solid state NMR interaction parameters of oxygens linking titanium and silicon in crystalline cyclic titanodiphenylsiloxanes
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UNSPECIFIED (2000) Solid state NMR interaction parameters of oxygens linking titanium and silicon in crystalline cyclic titanodiphenylsiloxanes. SOLID STATE NUCLEAR MAGNETIC RESONANCE, 17 (1-4). pp. 2-14. ISSN 0926-2040
Full text not available from this repository.Abstract
O-17 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 determined. It appears from these data that the quadrupole interaction (C-o) of such environments is in the range of 3-3.5 MHz and that Si-O-TiO3 sites are less shifted than Si-O-TiO5. The relatively large isotropic chemical range observed suggests that for structurally and atomically disordered titanosilicate-based materials the very highest applied magnetic field may not produce the best O-17 solid state NMR spectra. There appears to he a correlation between the O-17 shift and T-O bondlength. (C) 2001 Academic Press.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
| Journal or Publication Title: | SOLID STATE NUCLEAR MAGNETIC RESONANCE |
| Publisher: | ACADEMIC PRESS INC |
| ISSN: | 0926-2040 |
| Date: | 2000 |
| Volume: | 17 |
| Number: | 1-4 |
| Number of Pages: | 13 |
| Page Range: | pp. 2-14 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/12285 |
Data sourced from Thomson Reuters' Web of Knowledge
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