1.
Angew Chem Int Ed Engl
; 43(38): 5019-22, 2004 Sep 27.
Article
in English
| MEDLINE
| ID: mdl-15384112
Subject(s)
Bridged-Ring Compounds/chemical synthesis , Imidazoles/chemical synthesis , Macrocyclic Compounds/chemical synthesis , Bridged-Ring Compounds/chemistry , Crystallography, X-Ray , Cyclization , Imidazoles/chemistry , Macrocyclic Compounds/chemistry , Models, Molecular , Molecular Conformation
2.
Angew Chem Int Ed Engl
; 41(16): 3020-3, 2002 Aug 16.
Article
in English
| MEDLINE
| ID: mdl-12203444
3.
Angew Chem Int Ed Engl
; 38(7): 956-959, 1999 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-29711866
ABSTRACT
The next higher homologue of hexamethylenetetramine was synthesized as the proton cryptate H+ @1â Br- (shown schematically), and its X-ray structure determined. The proton trapped by the lone pairs accumulated at the center of the T-symmetric tetraaza cage could not be exchanged or removed, even after heating for three days in 3 M NaOD.
4.
Angew Chem Int Ed Engl
; 38(7): 959-961, 1999 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-29711879
ABSTRACT
A new donor, the C-F unit, can be added to the field of host-guest chemistry. The interaction between fluorine atoms and a potassium ion was proven with the fluorine-containing cage compound 1 as a host. The six fluorine atoms of K+ â1 are coordinated to K+ in a distorted octahedral fashion.
5.