1. (6 points) Assign the following molecules to their much work as needed. appropriate point group....
1. Assign the point group structures of the following main group molecules: (i) NF3, (ii) PFs, (iii) N-O* and (iv) NOj
11) Assign the point group for the following molecules and indicate whether you expect the molecule to be polar or not. Be sure to show your work. (20 points) (a) HOF (b) CIFs (c) HCN (d) trans-PCLF 11) Assign the point group for the following molecules and indicate whether you expect the molecule to be polar or not. Be sure to show your work. (20 points) (a) HOF (b) CIFs (c) HCN (d) trans-PCLF
1. Assign the point group to each of the following molecules below by identifying all of the mirror planes, inversion centers, and Ca rotation axes. CI M.C Br Br a. b. XeF4 ни Cо OC c. SF4 CO OC Fe C e.
Show the reagent or reagents needed to make the following molecules. (6 Points) Show the reagent or reagents needed to make the following molecules. OH wo -C=O-H ОН
6. Assign symmetry point groups to the following compounds. [F2S2P1 Point group: F2OXe Point group: [Cl30Se] Point group
Symmetry point groups Question 8 time 12 minutes] Identify the symmetry point group of the following molecules and specify if they can have a permanent electric dipole moment (a) ortho-phenanthroline (C12N2H&) (b) BrFs F Br F F FI Ni (d) PFs (c) mer-OsCl3(CO)3 CI Cl F-p.F F Co OC L C L 8 8
Assign the following molecules to point groups Need a-d M.... a+b+c CI 2 8- Mall - 111111 Milli a#b - N
please show your work 1. (2.5 point) Erythronolide Bis the biological precursor of erythromycine, a broad spectrum antibiotic. Howmany chirality centers does erythronolide have? Number them. Erythronolide B 2. (2.5 points Assign Ror S configuration to each chirality center in the following biological molecules. cooH A Prostaglandin E, o Ascorbic acid-Vitamin C
13. What is the point group for the following? (3 pts.) Sketch out the molecules. (3 pts.) (Total: 6pts.) (show at least 3 symmetry elements that lead you to the point group) a. What is the symmetry point group for cis-PtBr2Cl2-2? b. What is the symmetry point group for ClO4- ion? c. What is the symmetry point group for TeF5-?
Determine the molecular point group for each of the following ions or molecules: 1) ClF3, 2) IF5, 3) I3-, 4)XeO4, 5)XeOF4, 6)XeF4, 6) SF2