Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Jörg Emmer"'
Publikováno v:
Microporous Materials. 4:149-158
The phenyltrimethylammonium and benzyltrimethylammonium silicate hydrates with the approximate chemical compositions [NPhMe 3 ] 6 [Si 8 O 18 (OH) 2 ]·38.7H 2 O ( 1 ) and [NBnMe 3 ] 8 [Si 8 O 20 ]·53.6H 2 O (Ph=phenyl, Me=methyl, Bn=benzyl) ( 2 ) ha
Publikováno v:
Zeitschrift f�r anorganische und allgemeine Chemie. 620:757-765
[TMPA]4[Si8O20] · 34 H2O (1) and [DDBO]4[Si8O20] · 32 H2O (2) have been prepared by crystallization from aqueous solutions of the respective quaternary alkylammonium hydroxide and SiO2. The crystal structures have been determined by single-crystal
Publikováno v:
J. Chem. Soc., Chem. Commun.. :1604-1606
The mixed silicate–water host framework, 3∞[{[Si8O18(OH)2]6–}2[H2O]97], of the title compound contains unprecedented and remarkable structural features, e.g. pseudo-hexagonal layer-like subunits with large circular apertures (free diameter ca.
Autor:
Jörg Emmer, Michael Wiebcke
Publikováno v:
J. Chem. Soc., Chem. Commun.. :2079-2080
X-Ray structure analysis reveals that in the crystalline silicate hydrates with the approximate chemical compositions [NPhMe3]6[Si8O18(OH)2]·38.7H2O and [NBnMe3]8[Si8O20]·53.6H2O (Bn = benzyl) cube-shaped octameric silicate anions and water molecul