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|Title:||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|
|Citation:||Xu, J., Lai, Y.-H. (2002-12-09). 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. Tetrahedron Letters 43 (50) : 9199-9202. ScholarBank@NUS Repository. https://doi.org/10.1016/S0040-4039(02)02243-8|
|Abstract:||The synthesis of 20,28-dimethyl-24,33-dithia-1,4,7,10,13,16-hexaoxa[16.3.3](1,2,6)cyclophane 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 Ka. 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. © 2002 Elsevier Science Ltd. All rights reserved.|
|Source Title:||Tetrahedron Letters|
|Appears in Collections:||Staff Publications|
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