classes_Spring08_172ID39_ProblemSet2

classes_Spring08_172ID39_ProblemSet2 - Chemistry 172/273...

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1 Chemistry 172/273 Problem Set #2 Due Monday, April 27, in class Spring 2008 Note : Do not use a pencil. Use black ink only. Try to write as neatly as possible. If I don’t understand your handwriting, you will not get any points. 1 . Assign the symmetry point group for the following ions and molecules: a. SeCl 4 b. I 3 - c. PSCl 3 d. IF 4 - e. PH 2 - f. TeF 4 2- g. N 3 - h. SeOCl 4 i. PH 4 + j. NO - (considering N the central atom) 2 . Assign the symmetry point group for the following molecules and objects: a) Cu(CH 3 COCHCHO) 2 Cu O OO O b) 1,1’-dichloroferrocene Cl Cl Fe c) POCl 3 O P Cl Cl Cl
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2 d) Tennis ball (including the seam) lateral view top view e) trans [CrCl 2 (OH 2 ) 4 ] + Cr H 2 O H 2 O OH 2 OH 2 Cl f) 1,3,5-trichlorobenzene Cl Cl Cl g) trans Pt(NH 3 ) 2 Cl 2 Pt H 3 N NH 3 h) SF 5 Cl S F FF F Cl F i) BFClBr F B Cl Br j) PF 2 +
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3 F P F 3. Using the D 2 d character table: D 2 d E 2 S 4 C 2 2 C 2 2 σ d A 1 1 1 1 1 1 A 2 1 1 1 -1 -1 B 1 1 -1 1 1 -1 B 2 1 -1 1 -1 1 E 2 0 -2 0 0 a. Determine the order of the group.
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classes_Spring08_172ID39_ProblemSet2 - Chemistry 172/273...

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