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Crystals 2017, 7(6), 154;

Growth and Characterization of Tetraphenylphosphonium Bromide Crystal

State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Authors to whom correspondence should be addressed.
Academic Editor: Helmut Cölfen
Received: 15 April 2017 / Revised: 17 May 2017 / Accepted: 23 May 2017 / Published: 25 May 2017
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Multiple-phenyl phosphorous compounds are a group of chemical materials that have been used as reactants, pharmaceutical intermediates, extractants, and catalysts in organic synthetic reactions. However, the crystal growth of bulk crystals of multiple-phenyl phosphorous compounds, which may expand their applications in photonics technology, have been largely overlooked. In this article, the crystal growth of tetraphenylphosphonium bromide (TPPB) has been studied in organic solvents and water. The crystal structures and crystallization features are analyzed by X-ray diffraction data. By a slow temperature-lowering method, a single-crystal of TPPB (2H2O) with the size of 27 × 20 × 20 mm3 has been obtained in water. The basic thermal and optical properties were characterized. We find that the TPPB (2H2O) crystal shows excellent transparent property in the near-IR region. Large Raman shifts and strong Raman scattering intensity indicate that TPPB is a potential candidate in Raman-scattering-based nonlinearity applications. View Full-Text
Keywords: tetraphenylphosphonium bromide; single-crystal; crystal growth; transmission; Raman scattering tetraphenylphosphonium bromide; single-crystal; crystal growth; transmission; Raman scattering

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Wang, G.; Liu, X.; Ren, Y.; Zhang, C.; Tao, X. Growth and Characterization of Tetraphenylphosphonium Bromide Crystal. Crystals 2017, 7, 154.

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