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Photochemical reaction of Mo(CO)6 with Et2GeH2: NMR and DFT studies of reaction products; crystal structure of a novel complex[{Mo(μ-η2-H—GeEt2)(CO)4}2].
Autorzy
Rok wydania
2009
Czasopismo
Numer woluminu
28
Strony
5857-5865
DOI
10.1021/om900299k
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The photochemical reaction of Mo(CO)6 with the diethylgermane Et2GeH2 leads to the formation of several new complexes, which were detected by IR and 1H and 13C NMR spectroscopy. From the mixture of compounds, a binuclear complex, [{Mo(μ-η2-H−GeEt2)(CO)4}2], was isolated in crystalline form, and its molecular structure was established by single-crystal X-ray diffraction studies. The agostic hydride ligand of the Mo(μ-η2-H−GeEt2) group was located in the structure at a chemically reasonable position between the Mo and Ge atoms of the Mo−Ge bond of the bridging germyl ligand, and its presence was confirmed by 1H NMR spectroscopy due to a proton resonance at δ = −7.86. Two dihydride complexes were identified by 1H and 13C NMR spectroscopy, due to their differing thermal behavior. A DFT study of the structural properties of possible reaction products was performed.
Słowa kluczowe
Anions, Ligands, Carbonyls, Nuclear magnetic resonance spectroscopy, molybdenum
Adres publiczny
https://doi.org/10.1021/om900299k
Strona internetowa wydawcy
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