Octahedral complexes of copper(II) undergo structural distortion (Jahn-Teller). Which one of the given copper(II) complexes will show the maximum structural distortion?
(en – ethylenediamine;H2N−CH2−CH2−NH2)
(en – ethylenediamine;H2N−CH2−CH2−NH2)
[Cu(H2O)6]SO4
[Cu(en)(H2O)4]SO4
cis−[Cu(en)2Cl2]
trans−[Cu(en)2Cl2]
The Correct Option is D
Solution and Explanation
John teller distortion: Any non-linear compound remove its degeneracy to attain the stability.
Extent of John teller distortion depends upon metal ion as well as nature of ligand.
Stronger the ligand, more will be the John Teller distortion and more will be the stability.
Hence, Trans [Cu(en)2Cl2] will exhibit maximum John Teller distortion.
So, the correct option is (D): Trans - [Cu(en)2Cl2].
Top Questions on coordination compounds
- Calculate the empirical formula of a compound containing 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass.
- BITSAT - 2025
- Chemistry
- coordination compounds
- PCl$_3$, 2KCl does not give precipitate of AgCl with AgNO$_3$ solution. Write the structural formula and IUPAC name of the complex.
- CBSE CLASS XII - 2025
- Chemistry
- coordination compounds
- The IUPAC name of complex compound [Co(NH$_3$)$_6$]Cl$_3$ is
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
- Which of the following compounds can be coloured?
- Bihar Board XII - 2025
- Chemistry
- coordination compounds
- Match each complex to its geometry:
- AIIMS Paramedical - 2025
- Chemistry
- coordination compounds
Questions Asked in JEE Main exam
- Let \( A = [a_{ij}] \) be a matrix of order 3 \(\times\) 3, with \(a_{ij} = (\sqrt{2})^{i+j}\). If the sum of all the elements in the third row of \( A^2 \) is \( \alpha + \beta\sqrt{2} \), where \(\alpha, \beta \in \mathbb{Z}\), then \(\alpha + \beta\) is equal to:
- JEE Main - 2025
- Matrices and Determinants
Consider the following sequence of reactions :
Molar mass of the product formed (A) is ______ g mol\(^{-1}\).- JEE Main - 2025
- Organic Chemistry
The magnitude of heat exchanged by a system for the given cyclic process ABC (as shown in the figure) is (in SI units):
- JEE Main - 2025
- Electric charges and fields
- The value of \( (\sin 70^\circ)(\cot 10^\circ \cot 70^\circ - 1) \) is:
- JEE Main - 2025
- Trigonometric Identities
- The number of 6-letter words, with or without meaning, that can be formed using the letters of the word "MATHS" such that any letter that appears in the word must appear at least twice is:
- JEE Main - 2025
- Calculus
Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.