A bridging hexazene (RNNNNNNR) ligand from reductive coupling of azides.
This communication reports the first examples of transition metal complexes containing an RNNNNNNR 2- ligand. Addition of 1-azidoadamantane to the diiron(I) synthon LRFeNNFeL R (L R = HC[C(R)N(2,6- iPr 2C 6H 3)] 2; R = methyl, tert-butyl) leads to the diiron complexes L RFe(mu-eta2:eta2-AdN6Ad)FeLR, which are surprisingly thermally stable. Magnetic, Mössbauer, and crystallographic data are consistent with pairs of high-spin iron(II) ions antiferromagnetically coupled through a dianionic AdN6Ad 2- bridge.
Cowley
Ryan E
RE
Department of Chemistry, University of Rochester, Rochester, New York 14627, USA.
Elhaïk
Jérôme
J
Eckert
Nathan A
NA
Brennessel
William W
WW
Bill
Eckhard
E
Holland
Patrick L
PL
D000218:Adamantane / Q000031:analogs & derivatives*; D001386:Azides / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005296:Ferrous Compounds / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D015204:Spectroscopy, Mossbauer
D001386:Azides; D005296:Ferrous Compounds; D000218:Adamantane