Inclusion networks of a calix[5]arene-based exoditopic receptor and long-chain alkyldiammonium ions.
[structure: see text]. Tail-to-tail connection of two cone calix[5]arene moieties by a rigid p-xylyl spacer affords the new exoditopic receptor 3 featuring two pi-rich cavities (assembling cores) in a centrosymmetric divergent arrangement, as established by a single-crystal X-ray analysis. 1H NMR complexation studies of 3 with alkyldiammonium ions support the formation of discrete bis-endo-cavity complexes and/or capsular assemblies along a polymer chain (polycaps), according to the length of the connector.
Garozzo
Domenico
D
CNR, ICTP Catania, Viale Regina Margherita 6, I-95125 Catania, Italy.
Gattuso
Giuseppe
G
Kohnke
Franz H
FH
Notti
Anna
A
Pappalardo
Sebastiano
S
Parisi
Melchiorre F
MF
Pisagatti
Ilenia
I
White
Andrew J P
AJ
Williams
David J
DJ
D000473:Alkanes / Q000737:chemistry*; D001557:Benzenesulfonates / Q000737:chemistry; D047250:Calixarenes; D003432:Cross-Linking Reagents / Q000737:chemistry; D003959:Diamines / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D015394:Molecular Structure; D011083:Polycyclic Compounds / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
C065351:1,10-diaminodecane; D000473:Alkanes; D001557:Benzenesulfonates; D003432:Cross-Linking Reagents; D003959:Diamines; D011083:Polycyclic Compounds; C012890:alpha,alpha-dibromo-4-xylenesulfonic acid; D047250:Calixarenes