Use of the aqua complex [fac-Mn(CO)3(dppe)OH2]BF4 for the preparation of a series of fac-Mn(CO)3(dppe)Z and [fac-Mn(CO)3(dppe)Z]BF4 complexes. X-ray crystal structures of three representative examples

The aqua ligand in the titled complex (prepared by a simple two-step, high-yield synthesis) is readily replaced by the desired anionic ligand Z−, to give a six-coordinate neutral species fac-Mn(CO)3(dppe)Z. Examples of such complexes where ZONO2, CN, OMe, OC(O)OMe, and OS(O)2CF3 (OTf) are reported herein. Neutral ligands also replace the aqua ligand to give ionic complexes [fac-Mn(CO)3(dppe)Z]BF4. Examples where Z=2,6-dimethylphenyl (xylyl) isocyanide, acetonitrile, benzonitrile, and acrylonitrile are also reported herein. Crystal structures of fac-Mn(CO)3(dppe)NO3 (2), [fac-Mn(CO)3(dppe)(xylyl-NC)]BF4 (7), and [fac-(CO)3Mn(dppe)(PhCN)]BF4 (9), are reported.