We report the synthesis of a new macrocyclic receptor, namely 2,8,14,20-tetra­hexyl-4,24:6,10:12,16:18,22-O,O′-tetra­kis­[2,3-di­hydro-[1,4]dioxino[2,3-g]quinoxalin-7,8-di­yl]resorcin[4]arene, DeepQxCav, obtained by the addition of ethyl­ene glycol di­tosyl­ate to an octa­hydroxy quinoxaline cavitand. A 1:1 supra­molecular complex of this cavitand with benzene has been obtained and analysed through X-ray diffraction analysis. The complex, of general formula C92H88O16N8·C6H6, crystallizes in the space group C2/c, with the cavitand host located about a twofold rotation axis. The benzene guest, which is held inside the cavity by C—H...π inter­actions and dispersion forces, is disordered over two equivalent sites, one in a general position and one lying on a twofold axis. The crystal structure features C—H...O hydrogen bonds and C—H...π inter­actions involving the alkyl chains, the aromatic rings, and the O atoms of the dioxane moiety of the resorcinarene scaffold. The crystal studied was refined as a two-component twin

A new, deep quinoxaline-based cavitand receptor for the complexation of benzene / Pinalli, Roberta; Trzciński, Jakub W.; Dalcanale, Enrico; Massera, Chiara. - In: ACTA CRYSTALLOGRAPHICA. SECTION E, CRYSTALLOGRAPHIC COMMUNICATIONS. - ISSN 2056-9890. - 75:2(2019), pp. 103-108. [10.1107/S2056989018017784]

A new, deep quinoxaline-based cavitand receptor for the complexation of benzene

Pinalli, Roberta;Trzciński, Jakub W.;Dalcanale, Enrico;Massera, Chiara
2019

Abstract

We report the synthesis of a new macrocyclic receptor, namely 2,8,14,20-tetra­hexyl-4,24:6,10:12,16:18,22-O,O′-tetra­kis­[2,3-di­hydro-[1,4]dioxino[2,3-g]quinoxalin-7,8-di­yl]resorcin[4]arene, DeepQxCav, obtained by the addition of ethyl­ene glycol di­tosyl­ate to an octa­hydroxy quinoxaline cavitand. A 1:1 supra­molecular complex of this cavitand with benzene has been obtained and analysed through X-ray diffraction analysis. The complex, of general formula C92H88O16N8·C6H6, crystallizes in the space group C2/c, with the cavitand host located about a twofold rotation axis. The benzene guest, which is held inside the cavity by C—H...π inter­actions and dispersion forces, is disordered over two equivalent sites, one in a general position and one lying on a twofold axis. The crystal structure features C—H...O hydrogen bonds and C—H...π inter­actions involving the alkyl chains, the aromatic rings, and the O atoms of the dioxane moiety of the resorcinarene scaffold. The crystal studied was refined as a two-component twin
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2854370
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact