A uranyl ion complex of N-methyl-p-tert-butyldihomoammoniocalix[4]arene with diaquadipyridinelithium as counter-ion.
The title complex, diaquadipyridinelithium (N-methyl-p-tert-butyldihomoammoniocalix[4]arene-kappa(4)O)dioxouranium(VI) tripyridine solvate monohydrate, [Li(C(5)H(5)N)(2)(H(2)O)(2)][UO(2)(C(46)H(58)NO(4))].3C(5)H(5)N.H(2)O, contains an 'internal' tetraphenoxide-coordinated uranyl complex of the macrocycle, in which the protonated N atom is involved in an intramolecular hydrogen bond with the uranyl oxo group located in the cavity. The Li(+) ion is in a tetrahedral environment and its two water ligands are involved in hydrogen bonds with two phenoxide O atoms, two pyridine molecules and one water molecule. This arrangement is compared with those obtained previously for other homoazacalixarenes and also for homooxacalixarenes in the presence of alkali metal hydroxides.
Thuéry
Pierre
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CEA/Saclay, DSM/DRECAM/SCM (CNRS URA 331), Bâtiment 125, 91191 Gif-sur-Yvette, France. thuery@drecam.cea.fr
Takemura
Hiroyuki
H