Using ~(95)Mo NMR Spectroscopy in the Synthesis and Characterization of Mo(CQ)6-M(CNR)j, Complexes

摘要

In the Advanced Inorganic Chemistry laboratory students are introduced to different synthetic methods To become familiar with inert atmosphere synthesis, the students prepare Mo(CO)6.n(CNR)n complexes. 95Mo NMR spectroscopy is used to monitor the reactions and to characterize the products The characterization also includes 14N NMR, 13C NMR and infrared spectroscopy An electrochemistry component can be added as well The experiment illustrates concepts such as ligand 7t-acceptor properties, the influence of the ligands on Ao, and the trans-effect The students gain NMR experience working with quadrupolar nuclei at low resonance frequencies.