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प्रश्न
Explain the following, giving two examples:
Heteroleptic
Explain a heteroleptic complex with an example.
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उत्तर
Heteroleptic refers to a coordination complex where the central metal ion is coordinated with more than one type of ligand. For example:
- [CuCl4(NH3)2]2+: In this complex, copper (Cu2+) is coordinated with both chloride (Cl−) and ammonia (NH3) ligands, making it a heteroleptic complex.
- [Cr(H2O)6Cl2]2+: In this complex, chromium (Cr3+) is coordinated with six water (H2O) molecules and two chloride (Cl−) ions, which also makes it heteroleptic.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
Classify the following ligands into monodentate and polydentate —
- Ammonia
- Carbon monoxide
- Ethylene diamine
- Ethylene diamine tetra acetate ion
Explain the following, giving two examples:
Coordination entity
What is meant by unidentate ligand?
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
K3[Co(C2O4)3]
Which of the following compounds is used as a semipermeable membrane?
(a) Potassium ferrocyanide
(b) Potassium argentocyanide
(c) Sodium meta aluminate
(d) Copper ferrocyanide
Predict the co-ordination No. of cs+ ion if `r_(Cs)^+` = 1.69Å and `r_(Cl)^-` = 1.81Å.
How is Benzonitrile converted to Benzophenone?
Write structures of compounds A, B and C in of the following reactions
Write structures of compounds A, B and C in of the following reactions
Write the structures of compounds A, B and C in the following reactions
Write the IUPAC name of the following coordination compound:
[Cr(NH3)4(H2O)2]Cl3
Write the IUPAC name of the following coordination compound:
[PtCl2(NH3)4][PtCl4]
The oxidation number of Fe in K4[Fe(CN)6] is ____________.
The coordination number of the central ion may be obtained from:
Which of the following is non-ionizable?
Which of the following complexes formed by \[\ce{Cu^2+}\] ions is most stable?
When 0.1 mol \[\ce{CoCl3 (NH3)5}\] is treated with excess of \[\ce{AgNO3}\], 0.2 mol of \[\ce{AgCl}\] are obtained. The conductivity of solution will correspond to ______.
The stabilisation of coordination compounds due to chelation is called the chelate effect. Which of the following is the most stable complex species?
Which of the following complexes are homoleptic?
(i) \[\ce{[Co(NH3)6]^{3+}}\]
(ii) \[\ce{[Co(NH3)4 Cl2]^{+}}\]
(iii) \[\ce{[Ni(CN)4]^{2-}}\]
(iv) \[\ce{[Ni(NH3)4Cl2]}\]
Identify the correct statements for the behaviour of ethane-1, 2-diamine as a ligand.
(i) It is a neutral ligand.
(ii) It is a didentate ligand.
(iii) It is a chelating ligand.
(iv) It is a unidentate ligand.
A coordination compound \[\ce{CrCl3.4H2O}\] precipitates silver chloride when treated with silver nitrate. The molar conductance of its solution corresponds to a total of two ions. Write structural formula of the compound and name it.
Match the compounds given in Column I with the oxidation state of cobalt present in it (given in Column II) and assign the correct code:
| Column I (Compound) | Column II (Oxidation state of Co) |
| A. \[\ce{[Co(NCS)(NH3)5](SO3)}\] | 1. + 4 |
| B. \[\ce{[Co(NH3)4 CL2]SO4}\] | 2. 0 |
| C. \[\ce{Na4[Co(S2O3)3]}\] | 3. + 1 |
| D. \[\ce{[Co2(CO)8]}\] | 4. + 2 |
| 5. + 3 |
Assertion: \[\ce{Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2}\] are reducing in nature.
Reason: Unpaired electrons are present in their d-orbitals.
Which one of the following does not achieve an octet of electrons in the central atom?
In which of the following compounds, the oxidation number of iodine is fractional?
Which of the following is an ionic ligand?
Which one of the following ligands forms a chelate?
The co-ordinate number and the oxidation state of the element E in the complex [E(en)2(C2O4)]NO2 are respectively?
The oxidation number d-arbitral occupation and co-ordination number of Cr in the complex cis [Cr(en)2Cl2]Cl are respectively.
The complex which has no d electrons in the central atom is:-
According to IUPAC nomenclatures, sodium nitroprusside is named as
Which of the following ligands can exhibit linkage isomerism?
Metal attached with EDTA in an octahedral complex, has coordination number ______.
Ethylene diamine tetraacetate (EDTA) ion is ______.
Why chelate complexes are more stable than complexes with unidentate ligands?
Given below are two statements.
Statement I: In CuSO4·5H2O, Cu-O bonds are present.
Statement II: In CuSO4·5H2O, ligands coordinating with Cu(II) ion are O- and S-based ligands.
In light of the above statement, choose the correct answer from the options given below.
The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of CoCl3.4NH3 is ______. (Round off to the Nearest Integer).
Glycinato ligand is ______.
Assertion (A): EDTA is a hexadentate ligand.
Reason (R): EDTA has 2 nitrogen and 4 oxygen donor atoms.
Is the central metal atom in coordination complexes a Lewis acid or a Lewis base? Explain.
What is meant by the chelate effect? Give an example.
What is meant by the chelate effect? Give an example.
Explain the following, giving two examples:
Coordination polyhedron
Explain the following, giving two examples:
Coordination number
Give two examples of didentate ligands.
