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Synthesis, Structure, and Properties of Tl2(MoO3)3PO3CH3

✍ Scribed by William T.A. Harrison; Laurie L. Dussack; Allan J. Jacobson


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
290 KB
Volume
138
Category
Article
ISSN
0022-4596

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✦ Synopsis


Synthetic Tl 2 (MoO 3 ) 3 PO 3 CH 3 is built up from infinite sheets of distorted octahedral MoO 6 groups, sharing vertices. These octahedral layers are ''capped'' by P-CH 3 entities (as tetrahedral methylphosphonate PO 3 CH 2؊ 3 groups) on one face of each Mo/O sheet. Interlayer thallium cations provide charge compensation for the anionic sheets. Physical data are described. Crystal data: Tl 2 (MoO 3 ) 3 PO 3 CH 3 , M r ‫؍‬ 934.56, rhombohedral, space group R3 (No. 146), a ‫؍‬ 7.281 (1) A s , c ‫؍‬ 18.932 (2) A s , V ‫؍‬ 869.0 (3) A s 3 , Z ‫؍‬ 3, R(F) ‫؍‬ 4.76%, R w (F) ‫؍‬ 5.35% [824 observed reflections with I'3 (I)].


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