CH223 001 HW 4

CH223 001 HW 4 - CH223 001 HW 4

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CH223 001 HW 4 (Daily) SHAW ROBERT H CH 223, section 001, Fall 2008 Instructor: Kay Sandberg Web Assign Current Score: 10.5 out of 11 Due: Friday, August 29, 2008 07:00 AM EDT Description This assignment corresponds to Lecture 4 and the DE presentation(s) which accompany it. To see submission number and score, click the "Show Details" link at the top of each question. Instructions The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. 2.25/2.25 points Rank the following compounds according to proton chemical shift by placing the corresponding ranking number in the box: 9 = farthest downfield (most deshielded) to 1 = farthest upfield (most shielded) given the following clues. (1) CH 3 CCl 3 is more deshielded than CH 3 Br, but more shielded than CH 3 Cl (2) Two chlorines are more deshielding than one fluorine. CHCl 3 9 9 CH 2 Cl 2 8 8 CH 3 F 7 7 CH 3 Cl 6 6 (CH 3 ) 4 Si 1 1 CH 3 I 3 3 CH 3 CCl 3 5 5 (CH 3 ) 4 C 2 2 CH 3 Br 4 4 Solution or Explanation
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This note was uploaded on 02/03/2009 for the course CH CH 102, 20 taught by Professor Ta,ta,sandberg during the Fall '08 term at N.C. State.

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CH223 001 HW 4 - CH223 001 HW 4

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