Synthesis and Structure of Li8(HPO4)(BePO4)6.H20, A New Zeolite losod-type Beryllophosphate Molecular Sieve: Anion Templating with (HP04)2-.

reportActive / Technical Report | Accession Number: ADA251371 | Need Help?

Abstract:

We report synthesis and single-crystal structure of Li8HPO4BePO46-H2O BePO-LOS which is a topological equivalent of the synthetic low-sodium aluminosilicate zeolite losod, Na6AlSiO46-9H2O structure code LOS. Crystal data for BePO-LOS trigonal, space group P31c No. 159, alpha 11.504 2 A, c 9.273 2 A V 1062.8 cubic-A, Z 2.R 4.63, R sub w 4.88 for 1053 observed reflections with I . 3oI. Refined framework-atom bond distances D SUB AVEBe-O 1.624 4 A, d sub aveP-O 1.531 2 A reflect the fully-ordered distribution of Be and P-atoms over the framework tetrahedral nodes. The extra-framework lithium cations are in typical tetrahedral geometry 3 framework oxygen atomis 1 extra framework oxygen atom, while the included hydrogen phosphate anion, coordinated by lithium cations within the loso-cage, is novel. The structure of BePO-LOS is considered in relationship to other BePO sieves characterized recently.

Author(s):
Harrison, William T. ; Gier, Thurman E. ; Stucky, Galen D.
Author Organization(s):
CALIFORNIA UNIV SANTA BARBARA DEPT OF CHEMISTRY
Descriptive Note:
Technical rept. 1 Jun 91-31 May 92,
Supplementary Note:
Prepared in cooperation with University of Houston, Department of Chemistry, Houston, TX.
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-12
Contract/Grant Number(s):
N00014-90-J-1159
Monitor Series:
ONR
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*SYNTHESIS(CHEMISTRY), *MOLECULAR SIEVES, BERYLLIUM, PHOSPHORUS, LITHIUM
Field(s)/Group(s):
Inorganic Chemistry
Keyword(s):
*Zeolite losod, *Beryllophosphate, Anion templating, Hydrogen phosphates
Report Date:
1992 May 15