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Fe^(2+)-Ti^(4+) charge transfer in stoichiometric Fe^(2+),Ti^(4+) -minerals

Mattson, Stephanie M. and Rossman, George R. (1988) Fe^(2+)-Ti^(4+) charge transfer in stoichiometric Fe^(2+),Ti^(4+) -minerals. Physics and Chemistry of Minerals, 16 (1). pp. 78-82. ISSN 0342-1791. doi:10.1007/BF00201333.

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Optical absorption spectra are presented for taramellite, traskite and neptunite, all of which have both Fe^(2+) and Ti^(4+) as major elements. The spectra of each of these minerals are dominated by a single, intense absorption band in the 415 to 460 nm region with 7000 to 9000 cm^(−1) half width. These transitions, assigned to Fe^(2+)-Ti^(4+) intervalence charge transfer, showed little difference in intensity at 80 and 300 K and have molar absorptivities which range from ∼100 to ∼1300 M^(−1) cm^(−1). The Fe^(2+)-Ti^(4+) absorptions in these standards generally compare well to other mineral spectra in which Fe^(2+) — Ti^(4+) intervalence absorption has previously been proposed with the exception of the most cited example, blue corundum.

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Rossman, George R.0000-0002-4571-6884
Additional Information:© 1988 Springer-Verlag. Received June 26, 1987. This work was funded in part by NSF grant EAR 82-12540.
Funding AgencyGrant Number
NSFEAR 82-12540
Issue or Number:1
Record Number:CaltechAUTHORS:20140306-095711079
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Official Citation:Fe2+-Ti4+ charge transfer in stoichiometric Fe2+,Ti4+-minerals Stephanie M. Mattson, George R. Rossman Pages 78-82
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44171
Deposited By: Ruth Sustaita
Deposited On:06 Mar 2014 18:11
Last Modified:10 Nov 2021 16:48

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