A Molecular Bowl with Metal Ion as Bottom: Reversible Inclusion of Organic Molecules in Cesium Ion Complexed Cucurbituril

Angewandte Chemie - International Edition

Volumn 37, Issue 1-2, 1998, Pages 78-80

  Whang, Dongmok ^a   Heo, Jungseok ^a   Park, Joo Hyun ^a   Kim, Kimoon ^a  

^a Pohang University of Science and Technology (POSTECH)   (South Korea)

Author keywords

Cesium; Host guest chemistry; Inclusion compounds; Molecular recognition; Supramolecular chemistry

Indexed keywords

EID: 0031929934     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19980202)37:1/2<78::AID-ANIE78>3.0.CO;2-9     Document Type: Article

References (19)

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15. Complexation of alkali metal ions to cucurbituril was also studied by UV-visible spectroscopy. a) H.-J. Buschmann, E. Cleve, E. Schollmeyer, Inorg. Chim. Acta 1992, 793, 93; b) R. Hoffmann, W. Knoche, C. Fenn, H.-J. Buschmann, J. Chem. Soc. Faraday Trans. 1994, 90, 1507.
16. Complexation of alkali metal ions to cucurbituril was also studied by UV-visible spectroscopy. a) H.-J. Buschmann, E. Cleve, E. Schollmeyer, Inorg. Chim. Acta 1992, 793, 93; b) R. Hoffmann, W. Knoche, C. Fenn, H.-J. Buschmann, J. Chem. Soc. Faraday Trans. 1994, 90, 1507.
17. 2 with all 2340 reflections and 431 variables converged to R1 (7> 2σ(I)) =0.035, wR2 (all data) =0.096 and GOF=1.16. Crystallographic Data (excluding structure factors) for the structures reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publications no. CCDC-100615. Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (fax: int. code + (44) 1223-336033; email: deposit@ccdc.cam.ac.uk).
18. -2M) and THF (1.7-2.8 × 10-2M).
19. The thermodynamic parameters were estimated from the temperature dependence of the formation constants between 20 and 60°C.