Organometallic selenolates. Part 2. A new synthesis of dimeric (selenolato) tetracarbonylmanganese(I) complexes. Crystal structures of [Mn(CO)4SeR]2; R = CH2PH, C(O)Ph and CO2Me

Article abstract of DOI:10.1016/0022-328X(95)05970-Z

Dimeric selenolato-carbonyl manganese(I) complexes [Mn(CO)₄SeR]₂ (R = CH₂Ph, C(O)Ph, CO₂Ph, CO₂Me) have been synthesised via reaction of elemental selenium with NaMn(CO)₅ and subsequent reaction with the corresponding organohalides in one-pot syntheses. They have been characterised by spectroscopic methods (¹H, ¹³C, ⁷⁷Se) and the chemical shifts have been compared with the assumed reaction intermediate [Mn(CO)₄Se]₂Na₂. Additionally, X-ray crystal structure analyses have been performed for [Mn(CO)₄(SeR)]₂ (R = CH₂Ph, C(O)Ph, CO₂Me).