Drew University Library : University Archives : Theses and Dissertations
    
authorKatherine Elizabeth Marak
titleSome Reactions of Triosmium Decacarbonyl Bisethoxide, Os3(CO)102-OEt)2, with Amides
abstractIn our investigation of the unique and unexplored dibridged triosmium cluster, Os3(CO)102-OEt)2, reactions with amides were performed. The reactions with acetamide (CH3CONH2) and benzamide (C6H5CONH2) were analogous to the reaction of the cluster with carboxylic acids forming a diosmium complex, but there exists the possibility of isomers. Spectroscopic NMR and IR data with supporting DFT frequency calculations used to characterize the coordination of the ligands to the clusters as well as chromatographic data indicates that under thermodynamic conditions both isomers of Os2(CO)6 (RCONH)2 (R= C6H5, CH3) were observed in almost equal amounts for R=CH3 (52:48) but, favored the less polar (H,T) isomer when R=C6H5 (61:39). The proposed reaction scheme for the reaction with acetamide is below:
schoolThe College of Liberal Arts, Drew University
degreeB.A. (2017)
advisor Dr. Mary-Ann Pearsall
committee Dr. Alan Rosan
Dr. Minjoon Kouh
full textKEMarak.pdf