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High LaIII Affinity of a Bis(spirobenzopyran) Azacrown Ether and Photoinduced Switching of its Ion Selectivity between Multivalent and Monovalent Metal Ions |
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| Authors: | Keiichi Kimura Tomohito Utsumi Takashi Teranishi Masaaki Yokoyama Hidefumi Sakamoto Masanori Okamoto Ryuichi Arakawa Hiroshi Moriguchi Yoko Miyaji |
| Abstract: | |
| Keywords: | crown compounds host-guest chemistry lanthanum selectivity control spiro compounds |