A new aqueous molybdenum cluster with a Mo-3(mu(3)-CCH3)(mu(3)-O) trinuclear core

作者：Pineda Kris A; Fettinger James C; Houston Jacqueline R^*

来源：Inorganica Chimica Acta, 2012, 392: 485-489.

DOI：10.1016/j.ica.2012.03.037

• Trinuclear molybdenum cluster
• Alkylidyne
• Propionate
• Crystal structure
• Metal-oxo
• NMR

Reaction of Mo(CO)(6) with propionic acid and propionic anhydride gives the expected mu(3)-propylidyne capped molybdenum cluster as well as the unanticipated mu(3)-ethylidyne capped molybdenum cation with bridging propionates, [Mo-3(mu(3)-CR)(mu(3)-O)(mu-O2CCH2CH3)(6)(H2O)(3)]Br center dot 4H(2)O; R = CH3 and CH2CH3. Due to the similarity in structure, both complexes crystallize together in the triclinic crystal system upon slow evaporation of NaBr solutions (T = 277 K). Herein, we report the synthesis, characterization, and crystallographic study of the carbon-capped clusters. To our knowledge, this study is the first to report a trinuclear molybdenum cation in which the mu(3)-alkylidyne ligand is not the same chain length as the carboxylic acid used in the synthesis.

• 出版日期2012-9-30