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yield °ü·Ã.
1. CoCl2.6H2O 3g (mw:240, 12.5mmol)
-- > [Co(en)3]Cl3.1/2NaOH.3H2O mw:428.6
Á¾À̹«°Ô : 0.482 (ÀÌÇÏ °°À½) ÃÑ ¹«°Ô : 2.532 »ùÇù«°Ô : 2.05 : 4.78mmol
yield : 38.2%
2. [Co(en)3]Cl3.1/2NaOH.3H2O 2g (mw:428.6, 4.67mmol)
--> (+)Co(en)3.(+)tart.Cl.5H2O mw : 512.8
ÃÑ ¹«°Ô : .996 ¼ÀÇù«°Ô : .514 : 1.00mmol
yield : 42.8% (1/(4.67/2))
3. (+)Co(en)3.(+)tart.Cl.5H2O 0.5g (mw : 512.8, 0.975mmol)
--> (+)(Co(en)3).I3.H2O mw : 637.9
ÃÑ ¹«°Ô : 0.974 ¼ÀÇù«°Ô : 0.492 : 0.77mmol
yield : 79.0%
óÀ½ ±âÁØ yield : 12.3%
4. [Co(en)3]Cl3.1/2NaOH.3H2O 2g (mw:428.6, 4.67mmol)
--> (-)(Co(en)3).I3.H2O mw : 637.9
ÃÑ ¹«°Ô : 2.414 ¼ÀÇù«°Ô : 1.932 : 3.03mmol
yield : 129.8%
óÀ½ ±âÁØ yield : 48.5%
rotation °ü·Ã
(+) ÆûÀÇ °æ¿ì.
a = +0.0079
[a] = 0.0079 / (1 * 0.03) = +0.26
(0.3g / 10mL)
(-) ÆûÀÇ °æ¿ì.
a = +0.0008
[a] = 0.0008 / (1 * 0.05) = +0.016
(0.5g / 10mL)
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