Synthesis and Characterization of (Mesitylene)tricarbonylmol
Abstract: (Mesitylene)tricarbonylmolybdenum and (chlorobenzene)tricarbonylmolybdenum were synthesized each by different methods. (mesitylene)tricarbonylmolybdenum was produced by a direct method under harsh conditions. (Chlorobenzene)tricarbonylmolybdenum was made by an indirect method under mild conditions. The transition metals chromium, tungsten, and molybdenum commonly form complexes with benzene rings. The metal forms a bond with the six electrons in the ? system of the benzene ring. In this experiment two of such molybdenum complexes are synthesized: (mesitylene)tricarbonylmolybdenum and (chlorobenzene)tricarbonylmolybdenum shown in figure 1.Figure 1. (mesitylene)tricarbonylmolybdenum (a) and (chlorobenzene)tricarbonylmolybdenum (b) Two common methods for the synthesis of these tricarbonylmolybdenum complexes are used in the experiment. Method 1 is used to synthesize (mesitylene)tricarbonylmolybdenum and method 2 is used to make (chlorobenzene)tricarbonylmolybdenum. Method 1, the direct method, involves the heating of hexacarbonylmolybdenum with excess mesitylene. This method requires high reaction temperatures which can result in the decompo
The black crystals were filtered away and the solution was put on dry ice for 3 hours. IR peaks of (mesitylene)tricarbonylmolybdenumWavenumber (cm-1) Assignment1850 Carbonyl group (C-O stretch)1950 Carbonyl goup (C-O stretch) 1975 Unreacted Mo(CO)6The literature predicts only two IR peaks near 2000 cm-1. 0 mL) were added to the reaction flask and purged with N2 gas. IR samples were prepared using a KBr pellet. The product was then weighed and characterized. IR spectrum of tricabonyltris(pyridine)molybdenumSynthesized coumpound Wavenumber (cm-1) Dr. All purifications and characterizations of (chlorobenzene)tricarbonylmolybdenum were performed in a glove bag purged with N2 gas due to the air and water sensitivity of the reaction. The main reaction was performed in an N2 atmosphere. Syntheisis of (mesitylene)tricarbonylmolybdenum The reaction was perform in the hood due the release of toxic carbon monoxide produced by the reaction.
Common topics in this essay:
Abstract Mesitylenetricarbonylmolybdenum,
Carbonyl C-O,
FT-IR KBr,
Mesitylenetricarbonylmolybdenum1 Hexacarbonylmolybdenum,
Dr Pearsons,
Chlorobenzenetricarbonylmolybdenum2 Tricabonyltrispyridinemolybdenum,
Discussion Method,
IR NMR,
Aldrich Pyridine,
Unreacted MoCO6,
ir spectrum,
method 2,
method 1,
prepared using,
ml added,
wavenumber cm-1,
mesitylenetricarbonylmolybdenum chlorobenzenetricarbonylmolybdenum,
nmr spectrum,
solution filtered,
shown figure,
table 1 ir,
lab table 3,
figure 3 hydrogen,
spectrum mesitylenetricarbonylmolybdenum table,
table 3 ir,
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