Ligands 0.0 / 5 ? ChemistryTransition metalsA2/A-levelOCR Created by: beatricebennettCreated on: 05-12-16 18:10 Define Ligand. A molecule or ion that can donate a pair of elections to a transition mental ion to form a coordinate bond. 1 of 8 Give examples of monodenate ligands. :Cl-, :OH-, :NH3, :SCN-, :CN-, :H20 2 of 8 Give an example of a bidentate ligand. :NH2CH2CH2H2N: ('en') 3 of 8 Define a complex ion. A transition metal element bonded to one or more ligands by coordinate bonds. 4 of 8 Define coordination number. The number of coordinate bonds to the central metal ion. 5 of 8 Describe the difference between the cis and trans isomers of complex ions. Cis isomers have 90 degrees between identical atoms, trans isomers have 180 degrees between identical isomers. 6 of 8 Describe the shape and bond angle of six fold coordination, with examples. Octahedral shape, 90 degrees, [Pt(NH3)4Cl2], [Cu(H2O]6]^2+, [Fe(H2O)6]^2. 7 of 8 Describe the shapes and bond angles of four fold coordination, with examples. Square planer, 90 degrees, [Pt(NH3)2Cl2], [Ni(CN)4]^2-. Tetrahedral, 109.5 degrees, [CuCl4]^2-, [CoCl4]^2-. 8 of 8
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