Binding of the terephthalate dianion by di- tri- and tetrathiourea functionalised fused [3] and [5]polynorbornane based hosts.
Org Biomol Chem
; 7(20): 4233-40, 2009 Oct 21.
Article
em En
| MEDLINE
| ID: mdl-19795062
ABSTRACT
The affinity of new di-, tri- and tetrathiourea functionalised fused [3] and [5]polynorbornane based hosts 1-6 towards terephthalate2- was proportional to the size of the preorganised cleft/cavity imparted by the polynorbornane scaffold. Receptors based on the [5]polynobornane framework had greater affinities for the anion due to a higher degree of hostguest size complementarity. Hosts 1-5 formed 11 hostguest complexes with the rigid dianion, yet remarkably, host 6 was found to bind two terephthalate guests.
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Ácidos Ftálicos
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Tioureia
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Idioma:
En
Ano de publicação:
2009
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Article