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Scheme 3.2
Representation of supramolecular assemblies of Q[6] and Q[8] with metal ions and
guests
Scheme 3.3
Assembly of 3D catenated frameworks based on trigonal-planar branching units
composed of metal-ion-linked SQ[5]s
alternate ends of each 1,2,4-HMeQ[5] molecule, are present in the structure. Each
K2 center is directly coordinated to five portal carbonyl oxygens of one 1,2,4-
HMeQ[5] molecule, while being bound to one (bridging) portal carbonyl oxygen
from an adjacent 1,2,4-HMeQ[5] unit. This coordination pattern is reproduced in a
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