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Volumn 125, Issue 20, 2003, Pages 6228-6238

Synthesis, structures, and conformational characteristics of calixarene monoanions and dianions

Author keywords

[No Author keywords available]

Indexed keywords

COALESCENCE; CONFORMATIONS; MOLECULAR STRUCTURE; POLYMERS; SALTS; SYNTHESIS (CHEMICAL); X RAY ANALYSIS;

EID: 0037951297     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0289797     Document Type: Article
Times cited : (83)

References (62)
  • 4
    • 0004146786 scopus 로고
    • Royal Society of Chemistry
    • Gutsche, C. D. Calixarenes; Royal Society of Chemistry, 1989.
    • (1989) Calixarenes
    • Gutsche, C.D.1
  • 38
    • 0001934413 scopus 로고    scopus 로고
    • Tsoucaris, G. Atwood, J. L. Lipkowski, J. Eds.; Kluwer Academic Publishers: Dordrecht
    • Varnek, A.; Sirlin, C.; Wipff, G. In Crystallography of Supramolecular Compounds; Tsoucaris, G. Atwood, J. L. Lipkowski, J. Eds.; Kluwer Academic Publishers: Dordrecht, 1996; pp 67-99.
    • (1996) Crystallography of Supramolecular Compounds , pp. 67-99
    • Varnek, A.1    Sirlin, C.2    Wipff, G.3
  • 49
    • 0038136120 scopus 로고    scopus 로고
    • note
    • For the calix[6] dianionic structures, the NMR spectra are consistent with a 1,2,3-alternate conformation in solution, leading to a pattern of one pair of doublets and one singlet in the methylene region. The coalescence temperature of the pair of doublets was used for ΔG calculations.
  • 56
    • 0038812851 scopus 로고    scopus 로고
    • note
    • Although the satisfactory elemental analysis cannot distinguish between the pure mixed-cation species versus a 1:1 ratio of the two single-cation species, NMR spectra are consistent with a single mixed-cation species in solution.
  • 57
    • 0037798381 scopus 로고    scopus 로고
    • note
    • 13C NMR spectra were recorded on a Varian XL-300 spectrometer at 300 and 75 MHz, respectively. Analytical samples were dried in a drying pistol under vacuum for at least 24 h. Microanalyses were performed by Desert Laboratories, Tucson, AZ. IR spectra were obtained with an Infinity GoldTM FTIR spectrometer. Vacuum filtrations used Fisherbrand grade Q8 filter paper.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.