A neutron diffraction investigation of the structure of vitreous boron trioxide
An extended review is given of previous structural work on vitreous B 2O 3 which comes to the conclusion that the best structural model comprises a mixed random network of boroxol groups and independent BO 3 triangles. The neutron scattering length for 11B is slightly greater than that for oxygen so...
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| Veröffentlicht in: | Journal of non-crystalline solids 1982-01, Vol.50 (3), p.281-311 |
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| Sprache: | eng |
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| container_end_page | 311 |
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| container_issue | 3 |
| container_start_page | 281 |
| container_title | Journal of non-crystalline solids |
| container_volume | 50 |
| creator | Johnson, Peter A.V Wright, Adrian C Sinclair, Roger N |
| description | An extended review is given of previous structural work on vitreous B
2O
3 which comes to the conclusion that the best structural model comprises a mixed random network of boroxol groups and independent BO
3 triangles. The neutron scattering length for
11B is slightly greater than that for oxygen so that neutrons should be more sensitive than X-rays to the presence of boroxol groups. Results are presented from a neutron diffraction investigation of vitreous
11B
2O
3, using the Harwell linac pulsed neutron source, in which data have been obtained to high scattering vector values (
Q
max
=40
A
̊
−1
) yielding good real space resolution. It is concluded that these data are consistent with a mixed boroxol group - independent BO
3 triangle network having 60% of the boron atoms in boroxol rings. |
| doi_str_mv | 10.1016/0022-3093(82)90092-8 |
| format | Article |
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2O
3 which comes to the conclusion that the best structural model comprises a mixed random network of boroxol groups and independent BO
3 triangles. The neutron scattering length for
11B is slightly greater than that for oxygen so that neutrons should be more sensitive than X-rays to the presence of boroxol groups. Results are presented from a neutron diffraction investigation of vitreous
11B
2O
3, using the Harwell linac pulsed neutron source, in which data have been obtained to high scattering vector values (
Q
max
=40
A
̊
−1
) yielding good real space resolution. It is concluded that these data are consistent with a mixed boroxol group - independent BO
3 triangle network having 60% of the boron atoms in boroxol rings.</description><identifier>ISSN: 0022-3093</identifier><identifier>EISSN: 1873-4812</identifier><identifier>DOI: 10.1016/0022-3093(82)90092-8</identifier><language>eng</language><publisher>Elsevier B.V</publisher><ispartof>Journal of non-crystalline solids, 1982-01, Vol.50 (3), p.281-311</ispartof><rights>1982</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c401t-fee984839f9e524190b353e8bb6cefd4e807ce76efd6e731edfc03eee4c295b73</citedby><cites>FETCH-LOGICAL-c401t-fee984839f9e524190b353e8bb6cefd4e807ce76efd6e731edfc03eee4c295b73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0022-3093(82)90092-8$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Johnson, Peter A.V</creatorcontrib><creatorcontrib>Wright, Adrian C</creatorcontrib><creatorcontrib>Sinclair, Roger N</creatorcontrib><title>A neutron diffraction investigation of the structure of vitreous boron trioxide</title><title>Journal of non-crystalline solids</title><description>An extended review is given of previous structural work on vitreous B
2O
3 which comes to the conclusion that the best structural model comprises a mixed random network of boroxol groups and independent BO
3 triangles. The neutron scattering length for
11B is slightly greater than that for oxygen so that neutrons should be more sensitive than X-rays to the presence of boroxol groups. Results are presented from a neutron diffraction investigation of vitreous
11B
2O
3, using the Harwell linac pulsed neutron source, in which data have been obtained to high scattering vector values (
Q
max
=40
A
̊
−1
) yielding good real space resolution. It is concluded that these data are consistent with a mixed boroxol group - independent BO
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2O
3 which comes to the conclusion that the best structural model comprises a mixed random network of boroxol groups and independent BO
3 triangles. The neutron scattering length for
11B is slightly greater than that for oxygen so that neutrons should be more sensitive than X-rays to the presence of boroxol groups. Results are presented from a neutron diffraction investigation of vitreous
11B
2O
3, using the Harwell linac pulsed neutron source, in which data have been obtained to high scattering vector values (
Q
max
=40
A
̊
−1
) yielding good real space resolution. It is concluded that these data are consistent with a mixed boroxol group - independent BO
3 triangle network having 60% of the boron atoms in boroxol rings.</abstract><pub>Elsevier B.V</pub><doi>10.1016/0022-3093(82)90092-8</doi><tpages>31</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-3093 |
| ispartof | Journal of non-crystalline solids, 1982-01, Vol.50 (3), p.281-311 |
| issn | 0022-3093 1873-4812 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_23504426 |
| source | Access via ScienceDirect (Elsevier) |
| title | A neutron diffraction investigation of the structure of vitreous boron trioxide |
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