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Rubidium cryptates

F. Fages, J.-P. Desvergne, H. Bouas-Laurent, J.-M. Lehn, J. P. Konopelski, P. Marsau, and Y. Barrans, Synthesis and fluorescence emission properties of a bis-anthracenyl macrotricyclic ditopic receptor. Crystal structure ofits dinuclear rubidium cryptate, J. Chem. Soc., Chem. Commun. 655(1990). [Pg.46]

Figure 20 Molecular structures of [2.2.2]cryptand (73) and of the rubidium cryptate (reproduced with permission... Figure 20 Molecular structures of [2.2.2]cryptand (73) and of the rubidium cryptate (reproduced with permission...
C19H25KN2, Fluorenylpotassium tetramethylethylenediamine, 40B, 665 Cl9H38CSN3O7S, Caesium cryptate, 39B, 518 Cl9H38N307RbS, Rubidium cryptate, 39B, 518... [Pg.356]

Fig. 23. The complex cation in RbNCS (XXII) HgO showing the rubidium completely enclosed by the cryptate (after (704))... Fig. 23. The complex cation in RbNCS (XXII) HgO showing the rubidium completely enclosed by the cryptate (after (704))...
The rubidium and cesium complexes of [2.2.2] are isomorphous with approximate D3 symmetry and a crystallographic twofold rotation axis (41). While the rubidium cation is complexed almost without strain, the Cs+ is accommodated only by enlarging the cavity, increasing the mean C—C torsion angle to 71° (compared with 54° for the potassium cryptate). The ligand deformations required to complex Na+ and Cs + are reflected in their lower solution stability constants with respect to the K+ and Rb+ cryptates (see Section III,D). [Pg.8]

Figure 10 The rubidium complex of the cryptate (18) (Reproduced from Chem. Comm., 1970, 217)... Figure 10 The rubidium complex of the cryptate (18) (Reproduced from Chem. Comm., 1970, 217)...

See other pages where Rubidium cryptates is mentioned: [Pg.7]    [Pg.28]    [Pg.194]    [Pg.273]   
See also in sourсe #XX -- [ Pg.6 , Pg.7 , Pg.8 ]




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