Is There Evidence for Non-Linear Thiocyanate or Selenocyanate Ions?

The structure of a mixed-valence copper complex with 1,10-phenanthroline, [Cu II (phen) 2 ]–NC–[Cu I (phen)((Se,S)CN)]- [(Se,S)CN].0.5(C 2 H 5 OH), μ-cyano-1κ N :2κ C -(seleno,thio)cyanato-2κ N -tris(1,10-phenanthroline)-1κ 4 N , N ′;2κ 2 N , N ′-dicopper(I,II) (seleno,thio)cyanate semiethanolate, has been revised from space group Cc to C2/ c . Refinement in C2 / c has shown that, contrary to the Cc results, the (Se,S)CN anions can be described as approximately linear, as expected.