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ofsafety training, special facilities and equipment, and supervision by appropriate individuals. You bear the sole
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1. Transfer and Extraction Techniques
. Expert Experimentalist Rating: “Into Thin Air”
Techniques Checklist:
• Cannula transfer ❑
• Vacuum manifold use ❑
• Manipulations under an inert atmosphere ❑
• Solvent de-gassing ❑
Pre-Lab Discussion and Required Reading:
• Air sensitive techniques: LLP Ch. 9
Equipment:
• Vacuum manifold
• Solvent trap
• ic stir plate
• Cannula needle
• 25-mL Schlenk flask
• Schlenk frit
• 100-mL Round-bottomed flask - 14/20
• Small round-bottomed flask - 14/20
• Disposable purge needles
• UV-Vis cuvettes - quartz
• 14/20 rubber septa
• Smaller, tan septa (to fit cuvettes)
• Keck clips (14/20)
• Fresh bottle of tetrahydrofuran (THF) (you will only need 50 mL)
• Activated 4 Å molecular sieves
17
Goal:
You will be given a small sample of cobaltocene
(dicyclopentadienylcobalt) in a nitrogen-filled Schlenk flask. Your task
Co
is t