Uranyl salophenes

By using derivatives of cellulose 3,5-dimethylphenyl carbamate (Chiracel OD) as the chiral phase Bergman measured the enantiopurity of complexes of molybdenum (2.45) and iridium (2.46) (Figure 2.67). With the same type of stationary phase, Gladysz measured the ee of rhenium complexes ReCp(NO)P(C6H5)2Br (2.13), and uranyl-salophen complexes of uranium were analysed with a Chiracel ODH column. 

Asfari, Z. Thuery, P. Nierlich, M. Vicens. J. Unsym-metrical calix[4]- /5-crowns-6 with unequivalent crown loops. Tetrahedron Lett. 1999. 40. 499-502. van Axel Castelli. V. Cort, A.D. Mandoliai. L. Rein-houdt, D.N. Schiaffino. L. Catalysis of the addition of benzenethiol to 2-cyclohexen-I-ones by uranyl-salophen complexes A catalytic metallocleft with high substrate specificity. Chem. Eur. J. 2000, 6. 1193-1198. Albrecht, M. Hovestad, N.J. Boersma, J. van Koten. G. Multiple use of soluble rnetallodendritic materials as catalysts and dyes. Chem. Eur. J. 2001, 7. 1289-1294. Haino. T. Araki. H. Yamanaka. Y. Fukazawa, Y. Fullerene receptor based on calix[5]arene through metal-assisted self-assembly. Tetrahedron Lett. 2001. 42, 3203-3206. 

Early contributions in this area came from Reinhoudt s group and refer to cases in which the ion-pair-binding mechanism is of the host-separated type (Figure 19c) (for original references see reviews ). They first exploited cone calix[4]arene tetraesters or 1,3-alternate calix[4] crowns as binding units for alkali metal ions and uranyl-salophen complexes as anion-binding sites. 

Inherent chirality Chirality that does not originate from a stereogenic element, but from the presence of a curvature in the structure. Originally coined for calixarenes, this term is also used for jullerenes and uranyl-salophen complexes. 

Uranyl salophene derivative NPOE PVC tetradecy-lammonium bromide (TDAB) -59 10- - 10- 137,138... 

Wroblewski W, Wojciechowski K, Dybko A et al (2000) Uranyl salophenes as ionophores for phosphate-selective electrodes. Sensors Actuators B 68(1-3) 313-318... 

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