An Unusual Macrocyclic Hexamer of an Iso-Tellurazole N-Oxide Featuring CTe … O Chalcogen Bonds is Formed by κ 6 -O Complexation to Fe(II) and Ni(II)

An Unusual Macrocyclic Hexamer of an Iso-Tellurazole N-Oxide Featuring CTe … O Chalcogen Bonds is Formed by κ 6 -O Complexation to Fe(II) and Ni(II)

Studies of the supramolecular chemistry of iso-tellurazole N-oxides have been confined to non-polar media until now. To overcome that limitation, an iso-tellurazole N-oxide was derivatized with a primary alcohol group; the compound is soluble in polar solvents and stable in acidic to neutral aqueous...

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Veröffentlicht in:Chemistry : a European journal 2024-01, Vol.30 (3), p.e202302538
Hauptverfasser: Wang, Jin, Ho, Peter C, Craig, Matthew G J, Cevallos, Alberto, Britten, James F, Vargas-Baca, Ignacio
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container_title Chemistry : a European journal
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creator Wang, Jin
Ho, Peter C
Craig, Matthew G J
Cevallos, Alberto
Britten, James F
Vargas-Baca, Ignacio
description Studies of the supramolecular chemistry of iso-tellurazole N-oxides have been confined to non-polar media until now. To overcome that limitation, an iso-tellurazole N-oxide was derivatized with a primary alcohol group; the compound is soluble in polar solvents and stable in acidic to neutral aqueous media. Nickel (II) and iron (II) form macrocyclic complexes with six molecules of that iso-tellurazole N-oxide in a hitherto not-observed macrocyclic arrangement defined by CTe⋅⋅⋅O chalcogen bonds and κ -O bound to the metal ion. This behaviour is in sharp contrast with the κ -Te (n=1,2,4) complexes formed by soft metal ions.
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title An Unusual Macrocyclic Hexamer of an Iso-Tellurazole N-Oxide Featuring CTe … O Chalcogen Bonds is Formed by κ 6 -O Complexation to Fe(II) and Ni(II)
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