含有完全缩合四配位位点的水合碱金属硅酸盐阴离子。
Aqueous alkali-metal silicate anions containing fully condensed four-coordinate sites.
机构信息
School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
出版信息
Angew Chem Int Ed Engl. 2012 Sep 24;51(39):9900-3. doi: 10.1002/anie.201205606. Epub 2012 Sep 3.
PMID:22945887
Abstract
Conspicuous absence: (29)SiNMR studies show that highly condensed, four-coordinate Si-containing anions are common in concentrated alkali-metal silicate solutions, but reveal no evidence for the existence of specialized zeolite building units. The results add to the mounting evidence that silicate polymerization simply proceeds through stepwise condensation of monosilicate tetrahedra.
摘要
明显缺失
（29）SiNMR 研究表明，在高浓度碱金属硅酸盐溶液中，高度缩合的四配位含硅阴离子很常见，但没有证据表明存在专门的沸石结构单元。这一结果进一步证明，硅酸盐聚合是通过单硅酸四面体的逐步缩合来进行的。
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