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Volumn , Issue 22, 2003, Pages 4355-4362

From a Calix[4]arene to a Hexameric Supracycle

Author keywords

Calixarenes; Palladium; Pyridines; Self assembly; Supramolecular chemistry

Indexed keywords

CALIXARENE; DICHLOROMETHANE; DIPYRIDOXYCALIXARENE; LIGAND; METAL COMPLEX; PALLADIUM COMPLEX; TRANSITION ELEMENT; UNCLASSIFIED DRUG;

EID: 0345708064     PISSN: 1434193X     EISSN: None     Source Type: Journal    
DOI: 10.1002/ejoc.200300380     Document Type: Article
Times cited : (9)

References (50)
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    • Tetrapyridyl-substituted calixarenes with 1,3-alternate conformation were introduced by: X. Zeng, L. Weng, Z.-Z. Zhang, Chemistry Lett. 2001, 550-551.
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    • note
    • -1. A total of 3912 reflections, 203 parameters (2.30 < Θ < 25.03°) were collected, of which 2538 reflections were unique (R1 = 0.0492), I > 2σ(I), wR2 = 0.1342 for all reflections
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    • α radiation, T = 213 K (for compound 3b) and 203 K (for compound 4)]. Both structures were solved by direct methods and refined by full-matrix, least-squares with SHELXTL-97.[26] The contribution of the disordered solvent in molecule 4 to the structure factors was taken into account by back-Fourier transformation with PLATON/SQUEEZE.[27] All non-hydrogen atoms were refined by use of anisotropic thermal parameters; hydrogen atoms were included by use of a riding model and fixed isotropic thermal parameters. The hydroxy H atoms were refined isotropically, while those attached to C atoms were positioned geometrically, with C-H = 0.98-0.99 Å, and refined as riding atoms. X-ray data have been deposited at the Cambridge Crystallographic Data Centre (deposition number CCDC-204902 for 3b and CCDC-204901 for 4). Copies of the data can be obtained free of charge at www.ccdc.cam.ac.uk/conts/ retrieving.html [or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ [Fax: (internat.) +44-1223-336033; E-mail: deposit@ccdc.carn.ac.uk].
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    • For a hexameric supracycle of porphyrins based on complexation as aggregating principle, see: R. Takahashi, Y. Kobuke, J. Am. Chem. Soc. 2003, 125, 2372-2373.
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  • 49


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.