Molecular structure of [MnBr(CO)3(bpy)] (1) (thermal ellipsoids are shown at 50% probability level and the hydrogen atoms are omitted for clarity) and selected bond distances (Å): Molecule A: Mn-C(1) 1.803(4), Mn-C(2) 1.809(4), Mn-C(3) 1.814(4), Mn-N(1) 2.043(3), Mn-N(2) 2.052(2), Mn-Br 2.5316(11). Molecule B: Mn(1)-C(14) 1.800(4), Mn(1)-C(15) 1.799(4), Mn(1)-C(16) 1.790(4), Mn(1)-N(3) 2.041(3), Mn(1)-N(4) 2.035(3), Mn(1)-Br(1) 2.5441(11).