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Complexation behavior and crystal structure of a dithia[16.3.3](1,2,6)cyclophane: a novel one-dimensional coordination polymer with perchlorate anions as linkers

✍ Scribed by Jianwei Xu; Yee-Hing Lai

Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
185 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis

The synthesis of 20,28-dimethyl-24,33-dithia-1,4,7,10,13,16-hexaoxa16.3.3cyclophane 3 was achieved by cesium carbonate-assisted high dilution cyclization. Cyclophane 3 exhibited strong complexation towards all alkali metal ions. The change in chemical shift for the bridge methylene protons upon addition of alkali metal ions correlated to log K a . The crystal structure of cyclophane 3 as well as its sodium and potassium complexes was studied. Cyclophane 3 formed a novel one-dimensional coordination polymer with potassium perchlorate using anions as the linkers, while the complex of 3 with sodium perchlorate had a dimeric structure.

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