Platinum‐Imidazolyl Schiff Base Complexes Immobilized in Periodic Mesoporous Organosilica Frameworks as Catalysts for Hydrosilylation. (15th May 2020)

• Record Type: Journal Article
• Authors: Huo, Yingpeng; Hu, Jiwen; Tu, Yuanyuan; Huang, Zhenzhu; Lin, Shudong; Hu, Yangfei; Feng, Chao
• Is Part Of: Applied organometallic chemistry. Volume 34:Number 8(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-05-15
• Subjects: hydrosilylation reactions -- imidazolyl Schiff base -- periodic mesoporous organosilica -- platinum catalysts; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.5697
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract: An imidazolyl Schiff base‐containing periodic mesoporous organosilica (PMO) was synthesized via co‐condensation reactions between a newly prepared bis (imidazolyl)imine‐bridged bis silane and tetraethyl orthosilicate in the presence of cetyltrimethyl ammonium bromide as a soft template. The resultant as‐synthesized PMO was then employed as a solid support for platinum catalysts. This complex was fully characterized via various techniques including FTIR, solid‐state 13 C NMR, and 29 Si‐NMR spectroscopy, as well as N2 adsorption/desorption analysis, X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) methods. In addition, the catalyst was proven to efficiently mediate hydrosilylation reactions between olefins and hydrosilanes, and it can be reused for at least five cycles without significant loss of activity. Abstract : An imidazolyl Schiff base‐containing periodic mesoporous organosilica (PMO) was synthesized using a newly synthesized bis (imidazolyl)imine‐bridged bis silane. This material was proven to efficiently mediate hydrosilylation reactions between olefins and hydrosilanes, and it can be reused for at least five cycles without significant loss of activity.