Alkali cation 'conformational templation' in 1,5-bridged calix[8]arenes: a single crystal X-ray proof

被引：19
|
作者：
Consoli, GML
Cunsolo, F
Geraci, C
Gavuzzo, E
Neri, P
机构：
[1] Univ Salerno, Dipartimento Chim, I-84081 Baronissi, SA, Italy
[2] CNR, Ist Studio Sostanze Nat Interesse Alimentare & Ch, I-95028 Valverde, CT, Italy
[3] CNR, Ist Strutturist Chim G Giacomello, Area Ric Roma, Montelibretti, RM, Italy
来源：
TETRAHEDRON LETTERS | 2002年 / 43卷 / 07期
关键词：
calixarenes; bridged calix[8]arenes; alkali cations; template effect; conformation; X-ray crystal structure;
D O I：
10.1016/S0040-4039(01)02364-4
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
X-Ray crystallography proves that alkali cations can act as conformational templates for 1.5-bridged calix[8]arenes 1H(6), 3H(6), folding their skeleton in a 'tub-shaped' conformation composed of four 3/4-cone clefts. This templation occurs even for neutral 1H(6) to give a (1H(6)Cs)(+).Cl- complex, where Cs+ was found perfectly fitting inside the eight calix[8]arene oxygens cavity. Conventional 'electrostatic' coordination with O atoms occurs whereas cation-pi interactions can be excluded. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1209 / 1211
页数：3
相关论文
共 50 条
  • [1] Remarkable alkali cation template effect in 1,5-bridged calix[8]arenes
    Consoli, GML
    Cunsolo, F
    Geraci, C
    Neri, P
    ORGANIC LETTERS, 2001, 3 (11) : 1605 - 1608
  • [2] Atropisomerism in 1,5-bridged calix[8]arenes
    Consoli, GML
    Cunsolo, F
    Geraci, C
    Gavuzzo, E
    Neri, P
    ORGANIC LETTERS, 2002, 4 (16) : 2649 - 2652
  • [3] BRIDGED CALIX[4]ARENES - X-RAY CRYSTAL AND MOLECULAR-STRUCTURES AND SPECTROSCOPIC STUDIES
    BOHMER, V
    GOLDMANN, H
    VOGT, W
    PAULUS, EF
    TOBIASON, FL
    THIELMAN, MJ
    JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1990, (11): : 1769 - 1775
  • [4] Hydrogen-bonded dimers of tetraurea calix[4]arenes: Unambiguous proof by single crystal X-ray analysis
    Mogck, O
    Paulus, EF
    Bohmer, V
    Thondorf, I
    Vogt, W
    CHEMICAL COMMUNICATIONS, 1996, (22) : 2533 - 2534
  • [5] Heterocalixarenes Part 3: Bis-oxo-bridged calix[1]cyclicurea[3]arene and calix[1]cyclicurea[1]pyridine[2]arenes. Synthesis, X-ray crystal structure and conformational analysis
    Kumar, S
    Paul, D
    Hundal, G
    Hundal, MS
    Singh, H
    JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 2000, (06): : 1037 - 1043
  • [6] Heterocalixarenes part 3: Bis-oxo-bridged calix[1]cyclicurea[3]arene and calix[1]cyclicurea[1]pyridine[2]arenes. Synthesis, X-ray crystal structure and conformational analysis
    Kumar, Subodh
    Paul, Dharam
    Hundal, Geeta
    Singh Hundal, Maninder
    Singh, Harjit
    Journal of the Chemical Society, Perkin Transactions 1, 2000, (06): : 1037 - 1043
  • [7] BIS-FERROCENE DERIVATIVES OF BRIDGED CALIX[4]ARENES - SYNTHESIS, X-RAY CRYSTAL-STRUCTURE AND ELECTROCHEMICAL PROPERTIES
    BEER, PD
    KEEFE, AD
    BOHMER, V
    GOLDMANN, H
    VOGT, W
    LECOCQ, S
    PERRIN, M
    JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1991, 421 (2-3) : 265 - 273
  • [8] Ultramacrocycle with four calix[4]arenes: Synthesis and X-ray crystal structure of a quadruple calix[4]arene
    Hwang, GT
    Kim, BH
    SYNTHETIC COMMUNICATIONS, 2000, 30 (23) : 4205 - 4212
  • [9] X-ray crystal structures and molecular modelling studies of calix[4]dibenzocrowns-6 and their alkali metal cation complexes
    Lamare, V
    Dozol, JF
    Ugozzoli, F
    Casnati, A
    Ungaro, R
    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 1998, 1998 (08) : 1559 - 1568
  • [10] Single crystal X-ray studies of cation-deficient magnetite
    Okudera, H
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1997, 212 (06): : 458 - 461
12345