Electronic properties of the AsCO, AsSiO and AsGeO radicals: Linear or cyclic?

Observation of Main‐Group Tricarbonyls [B(CO)3] and [C(CO)3]+ Featuring a Tilted One‐Electron Donor Carbonyl Ligand

“…[6] Main-group carbonyl complexes which have an end-on bondedC Ol igand are also known. [7][8][9][10][11][12][13][14][15][16][17][18][19][20] The electron deficient boron speciesa re able to coordinate one CO ligand in forming the closed-shellc arbonyl borane H 3 BCO and relatedd erivatives, which are well-known stable carbonyl compounds. [11] Very recently,ar are example of am ain-group dicarbonyl com-plex [(RB)(CO) 2 ]( Rb eing ab ulky aryl group) with two terminal carbonyl ligands that is stable under ambient conditions has been reportedb yB raunschweig and co-workers.…”