Guest-facilitated heteroleptic assembly of helical anionocages has proved effective for chirality modulation of a supramolecular system, which was induced by effective chirality transfer from the chiral to achiral ligands. While both the endo-guest (bound in the cavity) and exo-guest (K+, bound in the crown ethers) are effective for chirality modulation, only that induced by K+ could be reversibly
螺旋阴离子笼的客体促进杂配组装已被证明对于超分子系统的手性调节是有效的,这是由从手性配体到非手性配体的有效手性转移诱导的。虽然内客体(结合在空腔中)和外客体(K + ,结合在冠醚中)对于手性调制都是有效的,但只有 K +诱导的手性调制才能可逆地转换。
Homo- and Hetero-Dinuclear Anion Complexes
作者:Michela Allevi、Marco Bonizzoni、Luigi Fabbrizzi
DOI:10.1002/chem.200601682
日期:2007.4.27
favoured by the preorganising effect exerted by the metal and disfavoured by the steric and electrostatic repulsions between the anions. Under the appropriate conditions, heterodinuclear complexes of formula [Cu(II)(4)(Cl)(H2PO4)] can be obtained in solution, in which Cl- is bound to the metalcentre and H2PO4- interacts with the trisurea compartment.