2020年7月
A Five-layer π-Aromatic Structure Formed through Self-assembly of a Porphyrin Trimer and Two Aromatic Guests
Chemistry - An Asian Journal
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- 巻
- 15
- 号
- 14
- 開始ページ
- 2212
- 終了ページ
- 2217
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/asia.202000452
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
In this study we synthesized two- and four-armed porphyrins - bearing two carboxyl and four 2-aminoquinolino functionalities, respectively, at their meso positions - as a complementary hydrogen bonding pair for the self-assembly of aD(2)-symmetric porphyrin trimer host. Two units of the two-armed porphyrin and one unit of the four-armed porphyrin self-assembled quantitatively into theD(2)-symmetric porphyrin trimer, stabilized through ammidinium-carboxylate salt bridge formation, in CH(2)Cl(2)and CHCl3. The porphyrin trimer host gradually bound two units of 1,3,5-trinitrobenzene between the pair of porphyrin units, forming a five-layer aromatic structure. At temperatures below -40 degrees C, the rates of association and dissociation of the complexes were slow on the NMR spectroscopic time scale, allowing the 1 : 1 and 1 : 2 complexes of the trimer host and trinitrobenzene guest(s) to be detected independently when using less than 2 eq of trinitrobenzene. Vis titration experiments revealed the values ofK(1)(2.1 +/- 0.4x10(5) M-1) andK(2)(2.2 +/- 0.06x10(4) M-1) in CHCl(3)at room temperature.
- リンク情報
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- DOI
- https://doi.org/10.1002/asia.202000452
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000541555300001&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-85087146462&partnerID=MN8TOARS
- ID情報
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- DOI : 10.1002/asia.202000452
- ISSN : 1861-471X
- ISSN : 1861-4728
- eISSN : 1861-471X
- ORCIDのPut Code : 91509785
- SCOPUS ID : 85087146462
- Web of Science ID : WOS:000541555300001