Easy and environmentally friendly synthesis method for T8H (HSiO3/2)8. (17th October 2020)

• Record Type: Journal Article
• Authors: Tsukada, Satoru; Ogawa, Takuya; Susami, Yuma; Yamamoto, Kazuki; Gunji, Takahiro
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 196:Number 3(2021)
• Page Start: 316
• Page End: 320
• Publication Date: 2020-10-17
• Subjects: Polyhedral oligomeric silsesquioxane -- cage compounds -- silicon -- T8H -- triethoxysilane; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2020.1833332
• Languages: English
• ISSNs: 1042-6507

Abstract

Abstract: Environmentally friendly methods for the synthesis of T8 H were developed. A combination of triethoxysilane (TES), concentrated HCl aqueous solution, and FeCl3 produced T8 H with almost the same yield as the previously known methods. We also found that HNO3 could be used instead of HCl, resulting in a similar yield. No toxic gases were generated during the reaction with HNO3 . Additionally, the synthesis of T8 H based on TES did not generate dangerous substances such as hydrogen chloride and methanol, unlike when trichlorosilane or trimethoxysilane are used. Therefore, our new method for the synthesis of T8 H is considered to be safer, although the yield is the same as the conventional methods. Graphical Abstract: