Question

5. In organometallic complexes, the 18-electron rule is used to predict the number of donor groups attached to the metal ion and its orientation Propose a possible structure for the following compounds: a. i. (n2-CHJ,TIC] (4 marks] (Cr(ox),(4,0 [4 marks] Determine if the proposed structures in part(a) are correct given that Ti (Z 22) and Cr (Z=24) (6 marks A reaction between Al and methyl halide yields methyl aluminium halides. Write a balanced reaction equation to produce methyl с. aluminium halides and propose the structure of the methyl aluminium halides. (6 marks

Answer 1

Anx :a) Structure of organo metallic Compounds: sis (CaS-C5 kpl, Til] (is (Grcom),(40)] cí ce HO b) The correctness of above structures com be determined by using advance techniques such X-ray crystallography, 'H NMR, IR and electronic spectroscopy." C) 2A1 + 4 mei -> 2Al(me, I + In Balanced chemical equation. Structure of methyl aluminium holide Alcme) X - x=halide (F, I, Br, I) me AIX me Triganal planer rio ar