Abstract
A new, earth-abundant, environmentally benign, and stable inorganic blue chromophore series Sr2(Mg1-xMnx)Ge 2O7+δ has been prepared and characterized by X-ray absorption spectroscopy, synchrotron X-ray diffraction, and ab initio total energy calculation. As the content of Mn in the compound was increased, the color changed from white (for x = 0.0) to sky blue, deep blue, and finally black body color (for x = 1.0). Sr2MgGe2O7 has the melilite-type structure comprising Mg(2+)O4 and GeO4 tetrahedra. On the other hand, it was found that the Mn ion in Sr 2(Mg1-xMnx)Ge2O7+δ is mainly trivalent and that the additional oxygen atom infiltrates into the lattice to compensate for the excess positive charge. The additional oxygen atom occupies an interstitial site, leading to the formation of Mn(3+)O5 trigonal bipyramid and Ge(4+)O5 square pyramid. As the driving force for the Mn(3+)O5 formation, the tendency for improving the lattice coherency between BO4-B′O4 and AO8 layers in the melilite A2BB′2O7 is suggested.
| Original language | English |
|---|---|
| Pages (from-to) | 5843-5848 |
| Number of pages | 6 |
| Journal | Journal of Materials Chemistry C |
| Volume | 1 |
| Issue number | 37 |
| DOIs | |
| Publication status | Published - Oct 7 2013 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemistry(all)
- Materials Chemistry
Cite this
Melilite-type blue chromophores based on Mn3+ in a trigonal-bipyramidal coordination induced by interstitial oxygen. / Kim, Tae Gon; Kim, Seung Joo; Lin, Chun Che; Liu, Ru Shi; Chan, Ting Shan; Im, Seoung Jae.
In: Journal of Materials Chemistry C, Vol. 1, No. 37, 07.10.2013, p. 5843-5848.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Melilite-type blue chromophores based on Mn3+ in a trigonal-bipyramidal coordination induced by interstitial oxygen
AU - Kim, Tae Gon
AU - Kim, Seung Joo
AU - Lin, Chun Che
AU - Liu, Ru Shi
AU - Chan, Ting Shan
AU - Im, Seoung Jae
PY - 2013/10/7
Y1 - 2013/10/7
N2 - A new, earth-abundant, environmentally benign, and stable inorganic blue chromophore series Sr2(Mg1-xMnx)Ge 2O7+δ has been prepared and characterized by X-ray absorption spectroscopy, synchrotron X-ray diffraction, and ab initio total energy calculation. As the content of Mn in the compound was increased, the color changed from white (for x = 0.0) to sky blue, deep blue, and finally black body color (for x = 1.0). Sr2MgGe2O7 has the melilite-type structure comprising Mg(2+)O4 and GeO4 tetrahedra. On the other hand, it was found that the Mn ion in Sr 2(Mg1-xMnx)Ge2O7+δ is mainly trivalent and that the additional oxygen atom infiltrates into the lattice to compensate for the excess positive charge. The additional oxygen atom occupies an interstitial site, leading to the formation of Mn(3+)O5 trigonal bipyramid and Ge(4+)O5 square pyramid. As the driving force for the Mn(3+)O5 formation, the tendency for improving the lattice coherency between BO4-B′O4 and AO8 layers in the melilite A2BB′2O7 is suggested.
AB - A new, earth-abundant, environmentally benign, and stable inorganic blue chromophore series Sr2(Mg1-xMnx)Ge 2O7+δ has been prepared and characterized by X-ray absorption spectroscopy, synchrotron X-ray diffraction, and ab initio total energy calculation. As the content of Mn in the compound was increased, the color changed from white (for x = 0.0) to sky blue, deep blue, and finally black body color (for x = 1.0). Sr2MgGe2O7 has the melilite-type structure comprising Mg(2+)O4 and GeO4 tetrahedra. On the other hand, it was found that the Mn ion in Sr 2(Mg1-xMnx)Ge2O7+δ is mainly trivalent and that the additional oxygen atom infiltrates into the lattice to compensate for the excess positive charge. The additional oxygen atom occupies an interstitial site, leading to the formation of Mn(3+)O5 trigonal bipyramid and Ge(4+)O5 square pyramid. As the driving force for the Mn(3+)O5 formation, the tendency for improving the lattice coherency between BO4-B′O4 and AO8 layers in the melilite A2BB′2O7 is suggested.
UR - http://www.scopus.com/inward/record.url?scp=84883380486&partnerID=8YFLogxK
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U2 - 10.1039/c3tc30795f
DO - 10.1039/c3tc30795f
M3 - Article
VL - 1
SP - 5843
EP - 5848
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 37
ER -