Ruthenium Cryptates with an Unusual Selectivity for Nitrate


Autoria(s): Baker, Naomi C.A.; Fletcher, Nicholas C.; Horton, Peter N.; Hursthouse, Michael B.
Data(s)

21/06/2012

Resumo

The synthesis of two new tripodal complexes [Ru(L3)](PF6)2 and [Ru(L4)](PF6)2, encapsulating a ruthenium(II) cation has been successfully achieved and the products fully characterized, including by X-ray structural determination. The smaller cavity, built around a tris(2-aminoethyl)amido scaffold demonstrated only moderate and predictable interactions with a range of anions and no significant spectroscopic change with nitrate, chloride and bromide, although dihydrogen phosphate did result in an almost stoichiometric precipitation. The expansion of the cavity to include the more rigid 1,3,5-benzenetricarbonylamide group creates a larger cavity, which shows a decrease in the emission on the introduction of chloride, bromide, hydrogensulfate and nitrate salts, with the 1H NMR titrations giving a surprisingly high binding affinity for nitrate over the smaller and simpler halides.

Identificador

http://pure.qub.ac.uk/portal/en/publications/ruthenium-cryptates-with-an-unusual-selectivity-for-nitrate(7cc8d579-6681-4f19-9462-5284638ef9ae).html

http://dx.doi.org/10.1039/c2dt12446g

Idioma(s)

eng

Direitos

info:eu-repo/semantics/closedAccess

Fonte

Baker , N C A , Fletcher , N C , Horton , P N & Hursthouse , M B 2012 , ' Ruthenium Cryptates with an Unusual Selectivity for Nitrate ' Dalton Transactions , vol 41 , no. 23 , pp. 7005–7012 . DOI: 10.1039/c2dt12446g

Palavras-Chave #/dk/atira/pure/subjectarea/asjc/1600/1604 #Inorganic Chemistry
Tipo

article