S. Quici et al., Ditopic receptors capable of hydrogen bonding: Synthesis and complexation behaviour of diaza crown-ethers having melamine sidearms, TETRAHEDRON, 55(34), 1999, pp. 10487-10496
The new ditopic receptors 1-3 (Figure 1) have been synthesized and their bi
nding ability for alkaline and transition metal cations has ben investigate
d by halide and W-Vis titrations. The recognition of complementary molecule
s through hydrogen bonding has been studied by H-1-NMR. The simultaneous re
cognition of these two guests is an anti-cooperative event. (C) 1999 Elsevi
er Science Ltd. All rights reserved.