ISSN:
0947-6539
Keywords:
coordination geometry
;
fluorides
;
square antiprisms
;
structure elucidation
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
WF6, ReFn (n = 6 and 7), and XeF6 combined with NOF to give (NO+2) WF2-8, (NO+)2ReF2-8, and (NO+)2XeF2-8, respectively. Also NO2F reacted with ReF6 to form (No2+)ReF2-8. Cs2XeF8·4BrF5 crystallized from a solution of Cs2XeF8 in BrF5. These five compounds were subjected to X-ray structure determinations. The structure of [NO(NOF)2]+IF-8 was used as a standard for comparison. All anions exhibit square-antiprismatic geometry, independent of their electronic configurations. Bond lenghts in ReF2-8 and XeF2-8 are larger than in WF2-8 and IF-8, owing to the presence of nonbonding electrons. Deviations from the ideal structure in XeF2-8 are attributed to cation-anion interactions.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/chem.19960020408
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