Single-crystal polarized electronic spectra of tetra-n-butylammonium tribromo(quinoline)cobaltate(II)

Single-crystal polarized electronic spectra of the pseudo-tetrahedral tetra-n-butylammonium tribromo(quinoline)cobaltate(II) have been recorded along three independent directions. To a first approximation the spectra have been assigned on a C3vsymmetry, whereas a more detailed interpretation requires the introduction of C1 low symmetry components. Such a behaviour has been compared with that of several other chromophores, both of nickel and cobalt, whose actual symmetry is C1, whereas the gross features of the spectra have been accounted for on the basis of higher symmetries.