Logo image
Cobalt(II), nickel(II) and copper(II) nitrate complexes with pyrazine N-oxide
Journal article

Cobalt(II), nickel(II) and copper(II) nitrate complexes with pyrazine N-oxide

A.N. Speca, N.M. Karayannis, L.L. Pytlewski and C. Owens
Journal of inorganic & nuclear chemistry, v 38(1), pp 91-94
1976

Abstract

Interaction of pyrazine N-oxide(pyzNO) with 3 d metal nitrate salts yields a 2:1 complex with Co(II) and 4:1 complexes with Ni(II) and Cu(II). In the cases of Cr(III), Fe(III) and Zn(II) no solid complexes were obtained. The 4:1 complexes are monomeric and hexacoordinated, involving two monodentate nitrato ligands. Elucidation of the Co(II) complex is more difficult. The data suggests either a monomeric hexacoordinated compound with bidentate nitrato ligands or a polymeric compound with monodentate nitrato groups and both terminal and bridging pyzNO ligands. Solubility characteristics favor the former structure. Finally, comparison of the mull and KBr pellet i.r. spectra of the new complexes indicates that these compounds undergo rearrangements when pressed in a KBr die.

Metrics

12 Record Views
16 citations in Scopus

Details

Logo image