mid-term2011 version 1

mid-term2011 version 1 - CHM 1321 Mid Term 1 (February 4,...

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1 CHM 1321 Mid Term 1 ( February 4, 2011) Answers 1) Identify the stereochemical relationship between the following molecules (enantiomers, diastereomers, same molecule, meso compound) ( 4 Points ) 2) Draw the following as line structures: ( 4 points ) a) 3,3-diethyloctan-2-ol b) [CH 3 CH 2 N(CH 3 ) 2 CH(CH 3 ) 2 ] + 3) For the following compound: a) What is the hybridization of both carbons, the oxygen and of the nitrogen? ( 4 points ) C 1 = sp 3 N 2 = sp 2 C 3 = sp 2 O 4 = sp 3 b) What is the geometry of both carbons, the oxygen and of the nitrogen? ( 4 points ) C 1 = tetrahedral N 2 = trigonal C 3 = trigonal O 4 = tetrahedral c) What molecular orbitals connect the following pairs of atoms? ( 4 points ) C 1 and N 2 = ± N 2 and C 3 = ± + ² O 4 and H = ± 4) Give IUPAC names for the following: ( 6 points )
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2 5) For each of the following pairs, circle the compound that best fits the criteria. Briefly justify your choice in each case. ( 9 points ) 6) Draw the important resonance forms for the following. Identify the major and minor forms and show
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mid-term2011 version 1 - CHM 1321 Mid Term 1 (February 4,...

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