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Metal-based hydrogen-bonding anion receptors

Another interesting and potentially very useful group of calixarene-based anion receptors is represented by systems with appended transition metal complexes of 2,2-bipyridine units. Technically, these systems utilise classical hydrogen bonding interactions of amidic/urea functions hence, from this point of view, they do not differ from many other receptors. On the other hand, the covalent attachment of bipyridine complexes of ruthenium(II) or rhe-... [Pg.72]

The salen-based receptor 47 is an example of a selective extractant for metal sulfates. The ligand forms a complex involving deprotonated phenoUc hydroxyl groups and pro-tonated morpholine residues adapted for hydrogen bonding to the anion. The ligand readily extracts CUSO4 into chloroform solution, for example, with essentially 100% efficiency. ... [Pg.988]

The Perez group has also synthesized a range of d transition metal-derived anion receptors based on rhenium and ruthenium, for example, complexes 137 and 138. Compound 137 contains a bidentate pyrazolylamidino ligand which provides one NH hydrogen-bond donor and an additional pyrazolyl NH donor. The complex binds chloride particularly strongly because of its rigid nature, with... [Pg.1005]


See other pages where Metal-based hydrogen-bonding anion receptors is mentioned: [Pg.66]    [Pg.808]    [Pg.66]    [Pg.808]    [Pg.163]    [Pg.196]    [Pg.154]    [Pg.218]    [Pg.223]    [Pg.311]    [Pg.323]    [Pg.326]    [Pg.105]    [Pg.205]    [Pg.218]    [Pg.223]    [Pg.270]    [Pg.202]    [Pg.5738]    [Pg.677]    [Pg.458]    [Pg.277]    [Pg.289]    [Pg.292]    [Pg.5737]    [Pg.130]    [Pg.617]    [Pg.1113]    [Pg.37]    [Pg.125]    [Pg.129]    [Pg.746]    [Pg.857]    [Pg.1095]    [Pg.1906]    [Pg.1967]    [Pg.16]    [Pg.74]    [Pg.288]   
See also in sourсe #XX -- [ Pg.66 ]




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Anions hydrogenation

Anions receptors

Hydrogen anions

Hydrogen bases

Hydrogen bonding anions

Hydrogen metal bonding

Metal anionic

Metal anions

Metal-based receptors

Metal-bonded anions

Metal-hydrogen bond

Receptor anionic

Receptor metal

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