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Is Hydroboration regioselective ?
Concept Introduction:
Regioselective reaction: A reaction in which one direction of bond making and breaking occurs preferentially over all other possible directions.
Hydroboration reaction: The hydroboration refers to the addition of hydrogen-boron bond to C-C, C-N and C-O double bonds, as well as C-C triple bonds.
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- What is measured in an X-ray crystallography experiment? How does the output from X-ray differ from the output of NMR?*The options for Kc and the concentration of N2 are increases, decreases and remain the same. *the options for Qc are is greater to, is equal to, or is less thanDraw a complete molecular orbital diagram for 1,3,5,7-octatetraene including: Labeled y-axis. MO energy levels with occupied electrons. Image of p-orbitals and their phases (you can either color code the phases or use +/- signs).
- How does plane polarised light bias the Soai reaction?Interpet and analyze this Infrared (IR) spectra to show the signs from the peaks and what they tell about the unknown compound.2. You have prepared a sample of [Co(en)3]Br3 (en = H₂NCH₂CH₂NH₂). Which technique is best suited to confirming that the metal ion is in an octahedral environment in the solid state? A) ¹H NMR spectroscopy B) ESI MS C) Moessbauer spectroscopy D) single crystal XRD
- Why permanganate has 5 peaks in its UV-Visible spectrum between 600-500 nm?phenolphthalein has deep red color in basic medium due to a. low energy between sigma and pi star b. low energy between pi bonding and pi antibonding c. high energy between sigma bonding and pi antibonding d. low energy between sigma and sigma starExplain why the pa values of the indicated hydrogen atoms change for these two compounds