title: Aryl(silyl)amino group stabilized hydridosilanediols: synthesis and characterization and use for preparation of alumino(hydrido)siloxanes.
abstract: Aryl(silyl)amino group stabilized hydridosilanediols RSiH(OH)2 (R = N(SiMe2Ph)-2,6-iPr2C6H3 (), N(SiMe3)-2,6-iPr2C6H3 (), and N(SiMe2Ph)-2,4,6-Me3C6H2 ()) were prepared from the controlled hydrolysis of the related RSiHCl2 () each in the presence of aniline as the HCl acceptor. Reactions of with AlMe3, AliBu3, AlH(iBu)2, and AlH3·NMe3, respectively, yielded alumino(hydrido)siloxanes [2,6-iPr2C6H3N(SiMe2Ph)Si(H)OAlMe(THF)]2 (), [2,6-iPr2C6H3N(SiMe2Ph)Si(H)OAliBu(THF)]2 (), [2,6-iPr2C6H3N(SiMe2Ph)Si(H)O2]3[Al(THF)]2 (), and [2,6-iPr2C6H3N(SiMe2Ph)Si(H)OAlH(THF)]2 (). The reaction of with AlMe3 gave [2,6-iPr2C6H3N(SiMe3)Si(H)OAlMe(THF)]2 (), a compound similar to . Compounds are characterized by NMR ((1)H, (13)C, and (29)Si) and IR spectroscopy and CHN elemental analysis, of which and are further studied by X-ray crystallography. Compounds and feature cyclic structures all with the skeleton core of Si2O4Al2 while compound exhibits a bicyclic structure having a core of Si3O6Al2. Melting point measurements indicated that are thermally stable bearing the geminal SiH and SiOH groups. Compounds and are thermally stable as well with the O atom-bridged SiH and AlR (R = Me, iBu, or H) groups.
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China. hpzhu@xmu.edu.cn.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China. hpzhu@xmu.edu.cn.
authors.forename: Jiancheng
authors.initials: J
authors.lastname: Li
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China. hpzhu@xmu.edu.cn.
authors.forename: Shimin
authors.initials: S
authors.lastname: Chen
authors.affiliation: State Key Laboratory for Platinum Group Metals, Kunming Institute of Precious Metals, Kunming, Yunnan Province 650106, China.
authors.forename: Weiping
authors.initials: W
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Platinum Group Metals, Kunming Institute of Precious Metals, Kunming, Yunnan Province 650106, China.
authors.forename: Qingsong
authors.initials: Q
authors.lastname: Ye
authors.affiliation: State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China. hpzhu@xmu.edu.cn.
authors.forename: Hongping
authors.initials: H
authors.lastname: Zhu