Syntheses, Fluxional Behavior and Crystal Structures of the Endo and Exo η³‐Allyl Monocarbonyl Dithiocarbonate and Dithiocarbamate Molybdenum Complexes: Crystal Structures of exo‐[Mo(η³‐allyl)(η²‐S₂COC₂H₅)(CO)(η²‐dppm)]and endo‐[Mo(η³‐allyl)(η²‐S₂CNC₄H₈)(CO)(η²‐dppe)]

The novel endo and exo complexes [Mo(η 3 ‐C 3 H 5 )(η 2 ‐L 2 )(CO)(η 2 ‐dppm)] are accessible by the reactions of the complexes [Mo(η 3 ‐C 3 H 5 )(CO) 2 (η 2 ‐L 2 )(X)] (L 2 , X = S 2 COEt, CH 3 CN; S 2 CNC 4 H 8 ; S 2 CNEt 2 ) with dppm. X‐ray crystal structures of exo ‐ 2 and endo ‐ 5 have been employed to elucidate the two orientations.