Bromine anion caught in a supramolecular trap

anionic host-guest complex

Structure of the anionic host-guest complex

Scientists in the UK and China have encapsulated a bromine anion in a  supramolecular cavity to make a compound that could act as a model for metal-/anion-doped TiO2.  The model could be used to find ways to improve current TiO2-doped  photovoltaic, photocatalytic and sensing devices.

Dominic Wright from the University of Cambridge, UK, and colleagues, have incorporated a Br anion into a polyoxotitanate host, in which there is only very weak bonding between the bromine and the surrounding titanium oxide shell. ‘As well as providing a model for the way in which anions like Br are incorporated into TiO2, purely inorganic host-guest arrangements like this are rare in their own right,’ says Wright.

Read the full article in Chemistry World

Link to journal article
Encapsulation of a ‘naked’ Br anion in a polyoxotitanate host
Yaokang Lv ,  Janina Willkomm ,  Alexander Steiner ,  Lihua Gan ,  Erwin Reisner and Dominic S. Wright
Chem. Sci.,
2012, Advance Article, DOI: 10.1039/C2SC20193C

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