ISSN:
1573-1111
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract In the solid and solution state Li+ and Na+ form inclusive and exclusive cryptates respectively with C21C5, in which Li+ resides inside and Na+ resides outside the C21C5 cavity. Similar inclusive and exclusive structures are observed for [Li.C211]+ and [Na. C211]+. The logarithms of the stability constants in dimethylformamide for [Li.C21C5]+, [Li.C211]+, [Na.C21C5]+ and [Na.C211]+ are: 2.80, 6.99, 2.87 and 5.20; ando the corresponding decomplexation rate constants are: 107, 0.013, 28800 and 12 s−1 at 298.2 K. The relationships between cryptate structure, stability and lability are considered, as are solvent influences.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00655636
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