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प्रश्न
Explain the following, giving two examples:
Coordination polyhedron
Explain with two examples of the following:
Coordination polyhedron
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उत्तर
A coordination polyhedron is defined by the spatial arrangement of the ligand atoms that are directly connected to the centre atom or ion. For example:
- [Cu(NH3)4]2+: The coordination polyhedron of copper in this complex is a square planar geometry, as there are four ammonia ligands arranged in a square around the central copper ion (coordination number 4).
- [Fe(CN)6]4−: The coordination polyhedron of iron in this complex is octahedral, with six cyanide ligands arranged around the central iron ion (coordination number 6).
संबंधित प्रश्न
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
(NH4)2[CoF4]
Predict the co-ordination No. of cs+ ion if `r_(Cs)^+` = 1.69Å and `r_(Cl)^-` = 1.81Å.
Write the IUPAC name of the following complex:
[Co(NH3)5(CO3)]Cl
The correct \[\ce{IUPAC}\] name of \[\ce{[Pt(NH3)2Cl2]}\] is ______.
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.
Arrange the following complexes in the increasing order of conductivity of their solution:
[Co(NH3)3Cl3], [Co(NH3)4Cl2]Cl, [Co(NH3)6]Cl3, [Cr(NH3)5Cl]Cl2
What is the relationship between observed colour of the complex and the wavelength of light absorbed by the complex?
Which one of the following ligands forms a chelate?
The complex which has no d electrons in the central atom is:-
According to IUPAC nomenclatures, sodium nitroprusside is named as
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).
Total sodium ions which are present in one formula unit of sodium ethane-1, 2-diaminetetraacetatochromate (II) and sodium hexanitrito cobaltate (III) are ______.
What is meant by the chelate effect? Give an example.
Explain the following, giving two examples:
Coordination number
Explain the following, giving two examples:
Heteroleptic
Give two examples of ambidentate ligands.
