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Ba(3)(P(1-x)Mn(x)O(4))(2): Blue/green inorganic materials based on tetrahedral Mn(V)

Laha, Sourav and Sharma, Rohit and Bhat, SV and Reddy, MLP and Gopalakrishnan, J and Natarajan, S (2011) Ba(3)(P(1-x)Mn(x)O(4))(2): Blue/green inorganic materials based on tetrahedral Mn(V). In: Bulletin of Materials Science, 34 (6). pp. 1257-1262.

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We describe a blue/green inorganic material, Ba(3)(P(1-x)-Mn(x)O(4))(2) (I) based on tetrahedral MnO(4)(3-):3d(2) chromophore. The solid solutions (I) which are sky-blue and turquoise-blue for x <= 0.25 and dark green for x >= 0-50, are readily synthesized in air from commonly available starting materials, stabilizing the MnO(4)(3-) chromophore in an isostructural phosphate host. We suggest that the covalency/ionicity of P-O/Mn-O bonds in the solid solutions tunes the crystal field strength around Mn(V) such that a blue colour results for materials with small values of x. The material could serve as a nontoxic blue/green inorganic pigment.

Item Type: Journal Article
Publication: Bulletin of Materials Science
Publisher: Indian Academy of Sciences
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Keywords: Blue/green inorganic material;barium phosphate/manganate(V); tetrahedral manganate(V);blue/green chromophore;ligand field tuning of colour
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 27 Jan 2012 06:45
Last Modified: 27 Jan 2012 06:45
URI: http://eprints.iisc.ac.in/id/eprint/43214

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