Ontology highlight
ABSTRACT:
SUBMITTER: Rahman FU
PROVIDER: S-EPMC6731629 | biostudies-literature | 2019 Sep
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20190819 36
We describe here the effects of metal complexation on the molecular recognition behavior of cavitands with quinoxaline walls. The nitrogen atoms of the quinoxalines are near the upper rim of the vase-like shape and treatment with Pd(II) gave 2:1 metal:cavitand derivatives. Characterization by <sup>1</sup>H, <sup>13</sup>C NMR spectroscopy, HR ESI-MS, and computations showed that the metals bridged adjacent quinoxaline panels and gave cavitands with C<sub>2v</sub> symmetry. Both water-soluble and ...[more]