Year: 2025
Type: article
Abstract: The crystal structures of three compounds derived from the reduction of Mn 2 (CO) 10 with potassium in liquid ammonia solution with and without the presence of [2.2.2]crypt ([2.2.2]crypt = 4,7,13,16,21,24‐Hexaoxa‐1,10‐diazabicyclo[8.8.8]‐hexacosane) is reported. For the formation of [K([2.2.2]crypt)] 2 [HMn(CO) 4 ] 2 NH 3 and K 3 [Mn(CO) 4 ] 2 NH 3 , liquid ammonia plays a crucial role as a solvent providing solvated electrons used for the reduction as well as for the stabilization of highly charged manganese carbonylates in ammoniate crystals. The isolation of [K([2.2.2]crypt)][Mn(CO) 4 (NH 3 )] 3 NH 3 offers an insight into a possible intermediate during the reduction from [Mn(CO) 5 ] − to [Mn(CO) 4 ] 3− via the ammonia alkali metal route.
Authors: Franz Wieberneit, Nikolaus Korber
Institution: University of Regensburg
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,050
Funder: Deutsche Forschungsgemeinschaft
OpenAlex ID: W4414813293