Analogous selenocyanate complexes

Mixed complexes of the type Ln(bipy)2(NCS)3 have been isolated containing both coordinated and uncoordinated groups. Because of the overlap of the bipyridine and thiocyanate band, unequivocal assignment is not possible [238], Analogous selenocyanate complexes Ln(bipy)3(NCSe>3 with N-bonded selenocyanate and a coordination number of 9 have been reported. 

Tetrahedral [Mn(NCSe)4] and octahedral [Mn(NCSe)g] anions are known (162, 295, 6i7, 655, 656), and [Re2(NCSe)8] has been tentatively identified (377). There seem to be no reports of similar Tc compounds, nor indeed of any mixed-ligand selenocyanate complexes of either technetium or rhenium. Some mixed-ligand complexes of manganese(II) selenocyanate have been prepared, and in every case so far described the selenocyanate is N-bonded. Analogous to the thio-... 

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