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Synthesis of New Chalcogenide Materials. The Novel One-Dimensional Semiconductor K4Ti3S14

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Abstract

The use of A2 Q/Q melts (A - alkali metal, Q - S or Se) for the synthesis of new one-dimensional solid-state materials is found to be of general utility and is illustrated here for the synthesis of K4 Ti3 SI4. Reaction of Ti metal with a K2 S/S melt at 375°C for 50 h affords K4 Ti3 SI4. The structure possesses one-dimensional chains of seven and eightcoordinate Ti atoms with each chain isolated from all others by surrounding K atoms. There are six S-S pairs (dave - 2.069(3) Å) so that the compound is one of TiIV and may be described as K4 [Ti3 (S)2 (S2)6]. Electrical conductivity measurements indicate that this material is a semiconductor.

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Authors and Affiliations

  1. Northwestern University, Department of Chemistry, Evanston, Illinois, 60201, USA

    Steven A. Sunshine, Doris Kang & James A. Ibers

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  1. Steven A. Sunshine
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  2. Doris Kang
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  3. James A. Ibers
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Sunshine, S.A., Kang, D. & Ibers, J.A. Synthesis of New Chalcogenide Materials. The Novel One-Dimensional Semiconductor K4Ti3S14. MRS Online Proceedings Library 97, 391–396 (1987). https://doi.org/10.1557/PROC-97-391

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  • DOI: https://doi.org/10.1557/PROC-97-391

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