Issues in Inorganic Synthesis. Ligand synthesis in NaOH pH ~11 MeOH 20 h or so Solvent : ethylene glycol.

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Presentation transcript:

Issues in Inorganic Synthesis

Ligand synthesis in NaOH pH ~11 MeOH 20 h or so Solvent : ethylene glycol

Porphyrin substituents on heme in hemoglobin Metallation of porphyrin How do you know when the reaction is done? Anything change at Fe?

Molybdenum Reactions. List them and conditions  MoOCl 2 detc 2  Mo 2 O 3 detc 4  MoOS 2 detc 2  MoOdetc 2

Fe and Ru Reactions. List them and conditions  FeCl(porphyrin)  Ru(bpy) 2 (L-pterin)

Mechanism:

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What’s the difference between pictures A and B? A B from X-ray crystallography from Chem 3D; “guessed” structure

X-ray Crystallography: the closest we can get to photographing our molecules! single crystal (not a powder or many tiny crystals) periodic array of atoms symmetrically oriented produces accurate (almost) bond distances and bond angles The method: see U.Penn X-ray FacilityU.Penn X-ray Facility see on-line X-ray Courseon-line X-ray Course see illustration of Space Group Symmetryillustration of Space Group Symmetry one of my old structures (on Cu)old structures (on Cu)

A single crystal structure of a Mo molecule from my lab:

Who wants to go see it done?