(a) Draw the structures of CH₂Cl2, [ICl4] and XeO3, clearly labelling Cartesian coordinates, and assign a point group to

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A Draw The Structures Of Ch Cl2 Icl4 And Xeo3 Clearly Labelling Cartesian Coordinates And Assign A Point Group To 1 (138.38 KiB) Viewed 41 times

(a) Draw the structures of CH₂Cl2, [ICl4] and XeO3, clearly labelling Cartesian coordinates, and assign a point group to each structure. (5 marks) (b) Ni(CO) 3 (PPh3) has C3v symmetry. Using the information provided below, how many v(C-O) bands you would expect to observe in its infra-red and Raman spectra respectively? C3v E 2 C3(z) 30v A₁ 1 1 1 Z x²+y² z² A₂ 1 1 -1 E 2 -1 0 (x,y) (x²-y²,xy), (xz,yz) (c) Give crystal field diagrams for the expected electronic configurations of [Mo(CN)6], [Mo(NH3)6]³+ and [MoCl]4, explaining your answer in each case. (d) Explain the terms diamagnetic and paramagnetic . NiCl2(PPH3)2 is a green paramagnetic solid, while cis- Ni(SCN) 2 (PPH3)2 is red and diamagnetic. With the aid of crystal field diagrams, give the metal coordination environment in both complexes. Why do they differ? (5 marks) (5 marks) (5 marks)