Coordination CompoundHard
Question
Which of the following complexes is not a chelate ?
Options
A.bis(dimethylglyoximato)nickel(II)
B.potassium ethylenediaminetetrathiocyanatochromate (III)
C.tetramminediazidocobalt(III) nitrate
D.trans-diglycinatoplatinum(II)
Solution
(A) Dimethylglyoximato is a bidentate ligand so it can attach to central metal ion through two donor atoms, N and O forming a ring.
(B) Ethylenediamine is a bidentate ligand so it can attach to central metal ion through two donor atoms, N and N forming a ring.
(C) All ligands act as monodentate ligand and thus do not form ring structure.
(D) Glycinato is a bidentate ligand so it can attach to central metal ion through two donor atoms, N and O forming a ring.
(B) Ethylenediamine is a bidentate ligand so it can attach to central metal ion through two donor atoms, N and N forming a ring.
(C) All ligands act as monodentate ligand and thus do not form ring structure.
(D) Glycinato is a bidentate ligand so it can attach to central metal ion through two donor atoms, N and O forming a ring.
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