By bridging 1,3：4,6-bis（3,6-dihydroxy-1,2-xylylene）tetrahydro-3a,6a-diphenyl imidazo- [4,5]-imidazole-2,5（IH,3H）-dione I with S（CH2CH2OCOCHECl）2, thiacrown molecular basket 2c was prepared for the first time. I...By bridging 1,3：4,6-bis（3,6-dihydroxy-1,2-xylylene）tetrahydro-3a,6a-diphenyl imidazo- [4,5]-imidazole-2,5（IH,3H）-dione I with S（CH2CH2OCOCHECl）2, thiacrown molecular basket 2c was prepared for the first time. It was found that the compound exhibited very poor affinity towards alkali metal ions but high extracting selectivity towards silver ion.展开更多
文摘By bridging 1,3：4,6-bis（3,6-dihydroxy-1,2-xylylene）tetrahydro-3a,6a-diphenyl imidazo- [4,5]-imidazole-2,5（IH,3H）-dione I with S（CH2CH2OCOCHECl）2, thiacrown molecular basket 2c was prepared for the first time. It was found that the compound exhibited very poor affinity towards alkali metal ions but high extracting selectivity towards silver ion.
