Silyl-, Germyl-, and Stannyl-Substituted Group 6 Pentacarbonyl Metalates

Reactions of silylated silyl-, germyl-, and stannyl anions with group 6 halogenpentacarbonyl
metalates gave the respective pentacarbonyl metalate derivatives. With the exception of a
stannylated chromate all compounds were obtained in good yields and selectivity. An
alternative approach employing group 6 metal hexacarbonyls in the reaction with the group
14 anions worked equally well. All compounds were fully characterized spectroscopically,
and four compounds were subjected to single-crystal structure analysis.