Synthesis and characterization of bis(trialkoxysilymethyl)arenes from related bis(trichlorosilylmethyl)arenes. Comparisons between some organosilicate xerogel materials derived from both
作者:Stuart W. Carr、Majid Motevalli、Duan Li Ou、Alice C. Sullivan
DOI:10.1039/a607633e
日期:——
A series of bis(trialkoxysilylmethyl)aryl compounds1–17
[(RO)
3
SiCH
2
]
2
Ar, R=Me, Et, Pr , Bu,
Ar=1,4-C
6
H
4
; R=Et, Pr, Bu,
Ar=1,4-C
6
H
2
Me
2
-2,6; R=Et, Pr, Bu,
Ar=1,4-C
6
Me
4
-2,3,5,6 ; R=Et, Pr, Bu,
Ar=1,3-C
6
H
4
; R=Bu,
Ar=1,2-C
6
H
4
; R=Et, Pr, Bu,
Ar=9,10-C
14
H
8
} prepared from the related
bis(trichlorosilylmethyl)aryl compounds and characterised by
1
H,
13
C and
29
Si NMR and IR spectroscopy,
and high resolution mass spectrometry. The X-ray crystal structures of two
of the bis(trichlorosilylmethyl)aryl precursor compounds are reported.
Organosilicate xerogels prepared from the precursors 2,7
and 12 are discussed.
These have been studied by a combination of solid state NMR
spectroscopy, scanning electron microscopy (one case) and nitrogen
sorption porosimetry and their properties compared with those of xerogels
derived from related bis(trichlorosilylmethyl)arenes.
一系列双(三烷氧基硅甲基)芳基化合物1-17 [(RO) 3 SiCH 2 ] 2 Ar, R=Me, Et, Pr , Bu, Ar=1,4-C 6 H 4 ; R=Et, Pr, Bu, Ar=1,4-C 6 H 2 Me 2 -2,6; R=Et, Pr, Bu, Ar=1,4-C 6 Me 4 -2,3,5,6 ; R=Et, Pr, Bu, Ar=1,3-C 6 H 4 ;R=Bu,Ar=1,2-C 6 H 4 ;R=Et,Pr,Bu,Ar=9,10-C 14 H 8 } 由相关的双(三氯硅甲基)芳基化合物制备而成,并通过 1 H、13 C 和 29 Si NMR 和 IR 光谱以及高分辨率质谱进行了表征。报告了两种双(三氯硅甲基)芳基前体化合物的 X 射线晶体结构。 讨论了由前体 2、7 和 12 制备的有机硅异凝胶,并结合固态核磁共振光谱、扫描电子显微镜(一种情况)和氮吸附孔隙度测定法对这些异凝胶进行了研究,同时将其性质与由相关双(三氯硅甲基)烷制备的异凝胶进行了比较。