Abstract Binuclear alkyne manganese carbonyls of the type (RC≡CR')Mn 2 (CO) n (R and R'=methyl or dimethylamino; =8, 7, 6) their isomers related to experimentally known (MeC NEt )Mn ( 7) structures have been investigated by density functional theory. The ligand remains intact in only low energy (Me N) C Mn 8 isomer, which has a central tetrahedrane unit is otherwise analogous well‐known (alkyne...
