Advertisements
Advertisements
Questions
Explain the following, giving two examples:
Coordination polyhedron
Explain with two examples of the following:
Coordination polyhedron
Advertisements
Solution
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).
APPEARS IN
RELATED QUESTIONS
Write the structure and IUPAC names of all the metamers represented by formula C4H10
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complex:
K3[Co(C2O4)3]
IUPAC name of the following compound is
(a) 3 - Bromo- 3, 4- dimethylheptane
(b) 3, 4- dimethyl - 3- bromoheptane
(c) 5- Bromo- 4, 5- dimethylheptane
(d) 4, 5- dimethyl- 5- bromoheptane
How is Benzonitrile converted to Benzophenone?
Write applications of co-ordination compounds in medicine and electroplating.
Write the IUPAC name of the following coordination compound:
[PtCl2(NH3)4][PtCl4]
Which of the following complexes formed by \[\ce{Cu^2+}\] ions is most stable?
Oxidation number of cobalt in K[Co(CO)4] is
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.
What are Homoleptic complexes?
Why chelate complexes are more stable than complexes with unidentate ligands?
How many ions are produced from the complex Co(NH3)6]Cl2 in solution?
The following ligand is:
The correct order of the spin-only magnetic moment of metal ions in the following low spin complexes,
\[\ce{[V(CN)6]^{4-}, [Fe(CN)6]^{4-}, [Ru(NH3)6]^{3+} and [Cr(NH3)6]^2}\] 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.
Explain the following, giving two examples:
Heteroleptic
Statement I: [Co(NH3)6]3+ is a homoleptic compleх whereas [Co(NH3)4Cl2]+ is a heteroleptic complex.
Statement II: Complex [Co(NH3)6]3+ has only one kind of ligands but [Co(NH3)4Cl2]+ has more than one kind of ligands.
In the light of the above statements, Choose the correct answer form the options given below.
