Point defects in disordered solids: Differences in structure and reactivity of the ( Si-O)(2)Si: groups on silica surface

Radzig VA.

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Point defects in disordered solids: Differences in structure and reactivity of the ( Si-O)(2)Si: groups on silica surface

机译：无序固体中的点缺陷：二氧化硅表面（Si-O）（2）Si：基团的结构和反应性差异

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The paper presents the results of studies of spectra and reactivity of intrinsic defects of silica including two-coordinated silicon atoms ((=Si-O-)(2)Si:, silylene centers, SCs). Such centers, stabilized on the surface of activated silica, are shown to differ in optical (absorption and luminescent) spectra and effects in various chemical processes. These effects are quantitatively analyzed. Possible differences in the SC geometry, resulting in the observed effects, are discussed using the quantum chemical calculations of molecular models. (C) 1998 Elsevier Science B.V. All rights reserved. [References: 15]

机译：本文介绍了包括两个配位硅原子（（= Si-O-）（2）Si :,亚甲撑中心，SCs）的二氧化硅固有缺陷的光谱和反应性的研究结果。稳定在活化二氧化硅表面上的此类中心在光学（吸收和发光）光谱和各种化学过程中的作用方面显示出不同。对这些影响进行定量分析。使用分子模型的量子化学计算讨论了SC几何形状中可能导致观察到的效果的差异。（C）1998 Elsevier Science B.V.保留所有权利。 [参考：15]

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《Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites》 |1998年第3期|共8页
作者
Radzig VA.;
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正文语种 eng
中图分类晶体学;
关键词
Oxygen-deficient centers; Glasses; Sio2;

机译：缺氧中心;玻璃;Sio2;

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1. Point defects in disordered solids: Differences in structure and reactivity of the ( Si-O)(2)Si: groups on silica surface [J] . Radzig VA. Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites . 1998,第1a3期

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Point defects in disordered solids: Differences in structure and reactivity of the ( Si-O)(2)Si: groups on silica surface

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