Lab 6! - Morgan Hector Lab partners Stephani Clevenger...

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Morgan Hector Lab partners: Stephani Clevenger, Katelynn Munoz 10/24/16 Chem. 2103-304 Lab 6 Photochemical Isomerization of an Alkene: cis-1,2-Dibenzoylthylene TA: Maddison Keller Purpose Understanding cis-trans isomerization in organic compounds via photochemical excitement. Safety 95% methanol: Highly flammable use caution Trans-1-2dibenzoylethylene: May cause eye and skin irritation. Trans-1-2dibenzoylethylene: May cause respiratory and digestive tract irritation Procedure 50mL beaker weigh and add 25mg of trans-1-2-dibenzoylethylene and 3 mL of 95% methanol. Gently stir the mixture Wash the side of the beaker with 95% methanol to collect crystals and filter with vacuum filtration Obtain a TLC plate draw a straight line and label 1,2,3, Each dot will indicate a different time that the sample is placed on the plate o Dot 1: Initial sample, (no UV light) o Dot 2: Half-way sample, (15 minutes under heat lamp) o Dot 3: End sample, (30 minutes under heat lamp)
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