The Ylide Adduct SOC 2 (PPh 3 ) 2 as Complex Ligand. Reaction with [Mn 2 (CO) 10 ] and InCl 3 ; Crystal Structures of [(CO) 4 Mn(SOC 2 {PPh 3 } 2 ) 2 ][Mn(CO) 5 ] and (H 2 C{PPh 3 } 2 )[InCl 4 ] 2

The betain‐like SOC 2 (PPh 3 ) 2 ( 1a ) reacts with [Mn 2 (CO) 10 ] in THF to produce the salt‐like complex [(CO) 4 Mn(SOC 2 {PPh 3 } 2 ) 2 ][Mn(CO) 5 ] ( 2 ). 1a is bonded via the sulfur atoms which are arranged in trans position in the octahedral environment of the manganese atom. With InCl 3 from CH 2 Cl 2 solution the addition product [Cl 3 In(SOC 2 {PPh 3 } 2 )] ( 3 ) is obtained along with the salt (H 2 C{PPh 3 } 2 )[InCl 4 ] 2 ( 4 ), which is the result of proton abstraction from the solvent. The crystal structures of 2· 0.5THF and 4· CH 2 Cl 2 are reported. The compounds are further characterized by IR and 31 P NMR spectroscopy.