1
Question
Identify the correct statements for the behaviour of ethane-1,2-diamine as a ligand.
Identify the correct statements for the behaviour of ethane-1,2-diamine as a ligand.
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Solution
The correct option is D It is a didentate ligand
Structure of 𝐸𝑡ℎ𝑎𝑛𝑒−1,2−𝑑𝑖𝑎𝑚𝑖𝑛𝑒:
NH2—CH2—CH2—NH2
𝐸𝑡ℎ𝑎𝑛𝑒−1,2−𝑑𝑖𝑎𝑚𝑖𝑛𝑒 has no charge, thus it is a neutral ligand.
It has two N-atoms that coordinate directly to the central atom in a complex, thus it is a didentate ligand.
Ethane−1,2−diamine is a chelating agent as it contains two coordinating sites that are two nitrogen atoms which donate their lone pairs of electrons and can form a 5-membered ring with the metal ion.
Thus 𝒆𝒕𝒉𝒂𝒏𝒆−1,2−𝒅𝒊𝒂𝒎𝒊𝒏𝒆 𝑖𝑠 𝑎 neutral, didentate and chelating ligand.
Hence the correct options are
(A), (B) & (C).
Structure of 𝐸𝑡ℎ𝑎𝑛𝑒−1,2−𝑑𝑖𝑎𝑚𝑖𝑛𝑒:
NH2—CH2—CH2—NH2
𝐸𝑡ℎ𝑎𝑛𝑒−1,2−𝑑𝑖𝑎𝑚𝑖𝑛𝑒 has no charge, thus it is a neutral ligand.
It has two N-atoms that coordinate directly to the central atom in a complex, thus it is a didentate ligand.
Ethane−1,2−diamine is a chelating agent as it contains two coordinating sites that are two nitrogen atoms which donate their lone pairs of electrons and can form a 5-membered ring with the metal ion.
Thus 𝒆𝒕𝒉𝒂𝒏𝒆−1,2−𝒅𝒊𝒂𝒎𝒊𝒏𝒆 𝑖𝑠 𝑎 neutral, didentate and chelating ligand.
Hence the correct options are
(A), (B) & (C).
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