Question

Question 5 1) In the crystal structure of CuF, the Cu2+ ion is six coordinate with four F ions at a distance of 1.93 A and two F ions at a distance of 2.27A. Explain. 2) Which of the following ligands F, CN, H20 and NO2 will form significantlhy distorted octahedral complexes with cobalt (II)? Explain 3) Which of the following octahedral complexes are expected to show very weak tetragonal distortion and why? (a) [Cr(CDl (b) [Mn(H20) (c)Cr(Ho and [Ti(H20 4) [Fe(L)6]4-is violet, [Co(LJs]3. is blue and [Cr(L3)6]3+absorbs at a maximum wave length 520 nm. Rank these complexes by increasing Violet : 400-420 nm ; Blue : 420-450 nm ; green : 450-550 nm ; Yellow : 550- n; Orange: 650-720 nm ; red : 720-800 nm 7

Answer 1

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