Co2+-doped diopside: crystal structure and optical properties
Synthetic clinopyroxenes along the CaMgSi 2 O 6 –CaCoSi 2 O 6 join were investigated by a combined chemical-structural-spectroscopic approach. Single crystals were synthesized by flux growth methods, both from Ca-saturated and Ca-deficient starting compositions. Single crystal structure refinements...
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| Veröffentlicht in: | Physics and chemistry of minerals 2018-05, Vol.45 (5), p.443-461 |
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| creator | Gori, C. Tribaudino, M. Mezzadri, F. Skogby, H. Hålenius, U. |
| description | Synthetic clinopyroxenes along the CaMgSi
2
O
6
–CaCoSi
2
O
6
join were investigated by a combined chemical-structural-spectroscopic approach. Single crystals were synthesized by flux growth methods, both from Ca-saturated and Ca-deficient starting compositions. Single crystal structure refinements show that the incorporation of Co
2+
at the octahedrally coordinated cation sites of diopside, increases the unit-cell as well as the
M1
and the
M2
polyhedral volumes. Spectroscopic investigations (UV–VIS–NIR) of the Ca-rich samples reveal three main optical absorption bands, i.e.
4
T
1g
→
4
T
2g
(
F
),
4
T
1g
→
4
A
2g
(
F
) and
4
T
1g
→
4
T
1g
(
P
) as expected for Co
2+
at a six-coordinated site. The bands arising from the
4
T
1g
→
4
T
2g
(
F
) and the
4
T
1g
→
4
T
1g
(
P
) electronic transitions, are each split into two components, due to the distortions of the
M1
polyhedron from ideal O
h
-symmetry. In spectra of both types, a band in the NIR range at ca 5000 cm
−1
is caused by the
4
A
2g
→
4
T
1g
(
F
) electronic transition in Co
2+
in a cubic field in the
M2
site. Furthermore, an additional component to a band system at 14,000 cm
−1
, due to electronic transitions in Co
2+
at the
M2
site, is recorded in absorption spectra of Ca-deficient samples. No variations in
Dq
and
Racah B
parameters for Co
2+
at the
M1
site in response to compositional changes, were demonstrated, suggesting complete relaxation of the
M1
polyhedron within the CaMgSi
2
O
6
–CaCoSi
2
O
6
solid solution. |
| doi_str_mv | 10.1007/s00269-017-0932-z |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2262060908</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2262060908</sourcerecordid><originalsourceid>FETCH-LOGICAL-c246t-f8edebf8efd8c06cf3870c472d2c711a8ef7e584177b6c42eb75253ca5f529203</originalsourceid><addsrcrecordid>eNp1UEtLxDAQDqJgXf0B3goeJTqZpk0reJDiCxa86DmkeUiXta1Jetj99Wap4MnLzDDfCz5CLhncMABxGwCwaigwQaEpkO6PSMZ4OhCQHZMMCo6UiYadkrMQNgAJFGVG7tsRr6kZJ2ty049T6I29y7Xfhai2eYh-1nH2NleDyccp9jp9J5_oPvY2nJMTp7bBXvzuFfl4enxvX-j67fm1fVhTjbyK1NXW2C5NZ2oNlXZFLUBzgQa1YEwlQNiy5kyIrtIcbSdKLAutSldig1CsyNXim6K_Zxui3IyzH1KkRKwQKmigTiy2sLQfQ_DWycn3X8rvJAN5aEkuLcnUkjy0JPdJg4smJO7waf2f8_-iH87Yal4</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2262060908</pqid></control><display><type>article</type><title>Co2+-doped diopside: crystal structure and optical properties</title><source>SpringerLink Journals - AutoHoldings</source><creator>Gori, C. ; Tribaudino, M. ; Mezzadri, F. ; Skogby, H. ; Hålenius, U.</creator><creatorcontrib>Gori, C. ; Tribaudino, M. ; Mezzadri, F. ; Skogby, H. ; Hålenius, U.</creatorcontrib><description>Synthetic clinopyroxenes along the CaMgSi
2
O
6
–CaCoSi
2
O
6
join were investigated by a combined chemical-structural-spectroscopic approach. Single crystals were synthesized by flux growth methods, both from Ca-saturated and Ca-deficient starting compositions. Single crystal structure refinements show that the incorporation of Co
2+
at the octahedrally coordinated cation sites of diopside, increases the unit-cell as well as the
M1
and the
M2
polyhedral volumes. Spectroscopic investigations (UV–VIS–NIR) of the Ca-rich samples reveal three main optical absorption bands, i.e.
4
T
1g
→
4
T
2g
(
F
),
4
T
1g
→
4
A
2g
(
F
) and
4
T
1g
→
4
T
1g
(
P
) as expected for Co
2+
at a six-coordinated site. The bands arising from the
4
T
1g
→
4
T
2g
(
F
) and the
4
T
1g
→
4
T
1g
(
P
) electronic transitions, are each split into two components, due to the distortions of the
M1
polyhedron from ideal O
h
-symmetry. In spectra of both types, a band in the NIR range at ca 5000 cm
−1
is caused by the
4
A
2g
→
4
T
1g
(
F
) electronic transition in Co
2+
in a cubic field in the
M2
site. Furthermore, an additional component to a band system at 14,000 cm
−1
, due to electronic transitions in Co
2+
at the
M2
site, is recorded in absorption spectra of Ca-deficient samples. No variations in
Dq
and
Racah B
parameters for Co
2+
at the
M1
site in response to compositional changes, were demonstrated, suggesting complete relaxation of the
M1
polyhedron within the CaMgSi
2
O
6
–CaCoSi
2
O
6
solid solution.</description><identifier>ISSN: 0342-1791</identifier><identifier>EISSN: 1432-2021</identifier><identifier>DOI: 10.1007/s00269-017-0932-z</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Absorption ; Absorption spectra ; Calcium magnesium silicates ; Chemical synthesis ; Cobalt ; Crystal structure ; Crystallography and Scattering Methods ; Crystals ; Diopside ; Earth and Environmental Science ; Earth Sciences ; Geochemistry ; Mineral Resources ; Mineralogy ; Optical properties ; Organic chemistry ; Original Paper ; Polyhedra ; Single crystals ; Solid solutions ; Spectroscopy ; Unit cell</subject><ispartof>Physics and chemistry of minerals, 2018-05, Vol.45 (5), p.443-461</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2017</rights><rights>Physics and Chemistry of Minerals is a copyright of Springer, (2017). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c246t-f8edebf8efd8c06cf3870c472d2c711a8ef7e584177b6c42eb75253ca5f529203</citedby><cites>FETCH-LOGICAL-c246t-f8edebf8efd8c06cf3870c472d2c711a8ef7e584177b6c42eb75253ca5f529203</cites><orcidid>0000-0003-1002-1465</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00269-017-0932-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00269-017-0932-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Gori, C.</creatorcontrib><creatorcontrib>Tribaudino, M.</creatorcontrib><creatorcontrib>Mezzadri, F.</creatorcontrib><creatorcontrib>Skogby, H.</creatorcontrib><creatorcontrib>Hålenius, U.</creatorcontrib><title>Co2+-doped diopside: crystal structure and optical properties</title><title>Physics and chemistry of minerals</title><addtitle>Phys Chem Minerals</addtitle><description>Synthetic clinopyroxenes along the CaMgSi
2
O
6
–CaCoSi
2
O
6
join were investigated by a combined chemical-structural-spectroscopic approach. Single crystals were synthesized by flux growth methods, both from Ca-saturated and Ca-deficient starting compositions. Single crystal structure refinements show that the incorporation of Co
2+
at the octahedrally coordinated cation sites of diopside, increases the unit-cell as well as the
M1
and the
M2
polyhedral volumes. Spectroscopic investigations (UV–VIS–NIR) of the Ca-rich samples reveal three main optical absorption bands, i.e.
4
T
1g
→
4
T
2g
(
F
),
4
T
1g
→
4
A
2g
(
F
) and
4
T
1g
→
4
T
1g
(
P
) as expected for Co
2+
at a six-coordinated site. The bands arising from the
4
T
1g
→
4
T
2g
(
F
) and the
4
T
1g
→
4
T
1g
(
P
) electronic transitions, are each split into two components, due to the distortions of the
M1
polyhedron from ideal O
h
-symmetry. In spectra of both types, a band in the NIR range at ca 5000 cm
−1
is caused by the
4
A
2g
→
4
T
1g
(
F
) electronic transition in Co
2+
in a cubic field in the
M2
site. Furthermore, an additional component to a band system at 14,000 cm
−1
, due to electronic transitions in Co
2+
at the
M2
site, is recorded in absorption spectra of Ca-deficient samples. No variations in
Dq
and
Racah B
parameters for Co
2+
at the
M1
site in response to compositional changes, were demonstrated, suggesting complete relaxation of the
M1
polyhedron within the CaMgSi
2
O
6
–CaCoSi
2
O
6
solid solution.</description><subject>Absorption</subject><subject>Absorption spectra</subject><subject>Calcium magnesium silicates</subject><subject>Chemical synthesis</subject><subject>Cobalt</subject><subject>Crystal structure</subject><subject>Crystallography and Scattering Methods</subject><subject>Crystals</subject><subject>Diopside</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Geochemistry</subject><subject>Mineral Resources</subject><subject>Mineralogy</subject><subject>Optical properties</subject><subject>Organic chemistry</subject><subject>Original Paper</subject><subject>Polyhedra</subject><subject>Single crystals</subject><subject>Solid solutions</subject><subject>Spectroscopy</subject><subject>Unit cell</subject><issn>0342-1791</issn><issn>1432-2021</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1UEtLxDAQDqJgXf0B3goeJTqZpk0reJDiCxa86DmkeUiXta1Jetj99Wap4MnLzDDfCz5CLhncMABxGwCwaigwQaEpkO6PSMZ4OhCQHZMMCo6UiYadkrMQNgAJFGVG7tsRr6kZJ2ty049T6I29y7Xfhai2eYh-1nH2NleDyccp9jp9J5_oPvY2nJMTp7bBXvzuFfl4enxvX-j67fm1fVhTjbyK1NXW2C5NZ2oNlXZFLUBzgQa1YEwlQNiy5kyIrtIcbSdKLAutSldig1CsyNXim6K_Zxui3IyzH1KkRKwQKmigTiy2sLQfQ_DWycn3X8rvJAN5aEkuLcnUkjy0JPdJg4smJO7waf2f8_-iH87Yal4</recordid><startdate>20180501</startdate><enddate>20180501</enddate><creator>Gori, C.</creator><creator>Tribaudino, M.</creator><creator>Mezzadri, F.</creator><creator>Skogby, H.</creator><creator>Hålenius, U.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><orcidid>https://orcid.org/0000-0003-1002-1465</orcidid></search><sort><creationdate>20180501</creationdate><title>Co2+-doped diopside: crystal structure and optical properties</title><author>Gori, C. ; Tribaudino, M. ; Mezzadri, F. ; Skogby, H. ; Hålenius, U.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c246t-f8edebf8efd8c06cf3870c472d2c711a8ef7e584177b6c42eb75253ca5f529203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Absorption</topic><topic>Absorption spectra</topic><topic>Calcium magnesium silicates</topic><topic>Chemical synthesis</topic><topic>Cobalt</topic><topic>Crystal structure</topic><topic>Crystallography and Scattering Methods</topic><topic>Crystals</topic><topic>Diopside</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Geochemistry</topic><topic>Mineral Resources</topic><topic>Mineralogy</topic><topic>Optical properties</topic><topic>Organic chemistry</topic><topic>Original Paper</topic><topic>Polyhedra</topic><topic>Single crystals</topic><topic>Solid solutions</topic><topic>Spectroscopy</topic><topic>Unit cell</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gori, C.</creatorcontrib><creatorcontrib>Tribaudino, M.</creatorcontrib><creatorcontrib>Mezzadri, F.</creatorcontrib><creatorcontrib>Skogby, H.</creatorcontrib><creatorcontrib>Hålenius, U.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>Physics and chemistry of minerals</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gori, C.</au><au>Tribaudino, M.</au><au>Mezzadri, F.</au><au>Skogby, H.</au><au>Hålenius, U.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Co2+-doped diopside: crystal structure and optical properties</atitle><jtitle>Physics and chemistry of minerals</jtitle><stitle>Phys Chem Minerals</stitle><date>2018-05-01</date><risdate>2018</risdate><volume>45</volume><issue>5</issue><spage>443</spage><epage>461</epage><pages>443-461</pages><issn>0342-1791</issn><eissn>1432-2021</eissn><abstract>Synthetic clinopyroxenes along the CaMgSi
2
O
6
–CaCoSi
2
O
6
join were investigated by a combined chemical-structural-spectroscopic approach. Single crystals were synthesized by flux growth methods, both from Ca-saturated and Ca-deficient starting compositions. Single crystal structure refinements show that the incorporation of Co
2+
at the octahedrally coordinated cation sites of diopside, increases the unit-cell as well as the
M1
and the
M2
polyhedral volumes. Spectroscopic investigations (UV–VIS–NIR) of the Ca-rich samples reveal three main optical absorption bands, i.e.
4
T
1g
→
4
T
2g
(
F
),
4
T
1g
→
4
A
2g
(
F
) and
4
T
1g
→
4
T
1g
(
P
) as expected for Co
2+
at a six-coordinated site. The bands arising from the
4
T
1g
→
4
T
2g
(
F
) and the
4
T
1g
→
4
T
1g
(
P
) electronic transitions, are each split into two components, due to the distortions of the
M1
polyhedron from ideal O
h
-symmetry. In spectra of both types, a band in the NIR range at ca 5000 cm
−1
is caused by the
4
A
2g
→
4
T
1g
(
F
) electronic transition in Co
2+
in a cubic field in the
M2
site. Furthermore, an additional component to a band system at 14,000 cm
−1
, due to electronic transitions in Co
2+
at the
M2
site, is recorded in absorption spectra of Ca-deficient samples. No variations in
Dq
and
Racah B
parameters for Co
2+
at the
M1
site in response to compositional changes, were demonstrated, suggesting complete relaxation of the
M1
polyhedron within the CaMgSi
2
O
6
–CaCoSi
2
O
6
solid solution.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00269-017-0932-z</doi><tpages>19</tpages><orcidid>https://orcid.org/0000-0003-1002-1465</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0342-1791 |
| ispartof | Physics and chemistry of minerals, 2018-05, Vol.45 (5), p.443-461 |
| issn | 0342-1791 1432-2021 |
| language | eng |
| recordid | cdi_proquest_journals_2262060908 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Absorption Absorption spectra Calcium magnesium silicates Chemical synthesis Cobalt Crystal structure Crystallography and Scattering Methods Crystals Diopside Earth and Environmental Science Earth Sciences Geochemistry Mineral Resources Mineralogy Optical properties Organic chemistry Original Paper Polyhedra Single crystals Solid solutions Spectroscopy Unit cell |
| title | Co2+-doped diopside: crystal structure and optical properties |
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