Organic−Inorganic Hybrid Material of Phenyl-Modified Polysilicophosphate Prepared through Nonaqueous Acid−Base Reaction
Organic−Inorganic Hybrid Material of Phenyl-Modified Polysilicophosphate Prepared through Nonaqueous Acid−Base Reaction
复制标题
非水酸碱反应制备苯基改性聚硅磷酸盐有机无机杂化材料
DOI：
10.1021/cm052638l
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发表时间：
2006
影响因子：
8.6
通讯作者：
T. Yoko
中科院分区：
文献类型：
--
作者：
M. Mizuno;Masahide Takahashi;Y. Tokuda;T. Yoko
在无溶剂、无催化剂的条件下，通过正磷酸与苯基改性氯硅烷的非水酸碱反应，制备了苯基硅磷酸盐有机-无机杂化材料。31 P NMR结果表明，硅磷酸盐由交替的（POOPh 2SiO）n−网络构成，预计在原子水平上非常均匀。结果发现，缩合反应是通过磷酸根离子与有机氯硅烷的亲核加成反应进行的，即SN 2反应机理。因此，连接到中心硅的苯基基团的吸电子性质促进了硅磷酸盐网络的形成。
An organic−inorganic hybrid material of phenylsilicophosphate was prepared through the solventless and catalyst-free nonaqueous acid−base reaction of orthophosphoric acid and phenyl-modified chlorosilane. The 31P NMR results showed that the silicophosphate is constituted of an alternating (POOPh2SiO)n− network, which is expected to be very homogeneous at an atomic level. It was found that the condensation took place through the nucleophilic addition of the phosphate ion to the organochlorosilane, that is, an SN2 reaction mechanism. The electron-withdrawing property of the phenyl group attached to the central silicon, hence, forwarded the formation of the silicophosphate network.