IGNOU MCH 11 2026 2027 - Give an example of a transition metal-dinitrogen complex. Give suitabl

Question

Give an example of a transition metal-dinitrogen complex. Give suitable chemical equation for its preparation. In what fashion can the two metal atoms be bridged by dinitrogen? What happens when the dinitrogen ligands bind in side-on mode? Gives suitable diagrams.

17 Jul 2026

Answer :

Word Count : 299

A transition metal-dinitrogen complex is a coordination compound in which molecular nitrogen (N₂) acts as a ligand and coordinates with a transition metal atom. A common example is the dinitrogen complex of molybdenum, ([Mo(N_2)_2(PPh_3)_2]), where nitrogen molecules are bonded to the molybdenum centre. Another important example is the bridged dinitrogen complex of cobalt, ([Co(N_2)(en)_2]_2^{2+}), in which the N₂ molecule connects two metal centres.

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