What is Coordination chemistry: Definition and 51 Discussions

A coordination complex consists of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands or complexing agents. Many metal-containing compounds, especially those of transition metals (d block elements), are coordination complexes.

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  1. Amitkumarr

    Chemistry Coordination chemistry problem

    My attempt- 1)The given ligand forms chelate rings,so it should be a chelating complex. 2)It has no plane of symmetry (P.O.S),so it is optically active(octahedral complex) and should have 2 optically active isomers. 3)They are not polymerisation isomers because they have different emperical...
  2. Wrichik Basu

    Ammonia is a strong or weak field ligand?

    Ammonia is present in the spectrochemical series near the middle, just after water. Is it a strong field ligand, or a weak field ligand? Also, take into consideration the complex ##[Ni(NH_3)_4 Cl_2]##. Chloride ion is towards the left end of the spectrochemical series which means it is a weak...
  3. Co-ordination chemistry by Prof. D. Ray (NPTEL):-Introduction

    Co-ordination chemistry by Prof. D. Ray (NPTEL):-Introduction

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  4. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Definition

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Definition

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  5. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Classification of Ligands - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Classification of Ligands - 1

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  6. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Classification of Ligands - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Classification of Ligands - 2

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  7. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Ligands - 3 and Nomenclature - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Ligands - 3 and Nomenclature - 1

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  8. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Nomenclature - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Nomenclature - 2

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  9. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 1

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  10. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 2

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  11. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 3

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 3

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  12. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 4

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Number - 4

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  13. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Isomerism - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Isomerism - 1

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  14. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Isomerism - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Isomerism - 2

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  15. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Equilibria - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Equilibria - 1

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  16. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Equilibria - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Coordination Equilibria - 2

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  17. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 1

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  18. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 2

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  19. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 3

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 3

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  20. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 4

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Bonding in Complexes - 4

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  21. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Jahn-Teller Effect

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Jahn-Teller Effect

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  22. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Spin Crossover and Colour

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Spin Crossover and Colour

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  23. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Optical Spectra

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Optical Spectra

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  24. Co-ordination chemistry by Prof. D. Ray (NPTEL):- d-d Transitions

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- d-d Transitions

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  25. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Charge Transfer

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Charge Transfer

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  26. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Orgel Diagram

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Orgel Diagram

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  27. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Tanabe Sugano Diagram

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Tanabe Sugano Diagram

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  28. Co-ordination chemistry by Prof. D. Ray (NPTEL):- MLCT Transitions

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- MLCT Transitions

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  29. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Application of CFT

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Application of CFT

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  30. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Spinels

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Spinels

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  31. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Magnetochemistry

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Magnetochemistry

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  32. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Magnetic Properties

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Magnetic Properties

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  33. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Magnetic Measurements

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Magnetic Measurements

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  34. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Ligand Field Theory

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Ligand Field Theory

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  35. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Sigma Orbitals

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Sigma Orbitals

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  36. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Pi Orbitals

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Pi Orbitals

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  37. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 1

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 1

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  38. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechniasm - 2

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechniasm - 2

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  39. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 3

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 3

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  40. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 4

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 4

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  41. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 5

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Reaction Mechanism - 5

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  42. Co-ordination chemistry by Prof. D. Ray (NPTEL):- Biological Inorganic Chemistry

    Co-ordination chemistry by Prof. D. Ray (NPTEL):- Biological Inorganic Chemistry

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  43. L

    Why Do Fe(II) Complexes Exhibit Unexpected Colors?

    There is something that I am not understanding about the visible colors of coordination complexes. I did a lab where I prepared [Fe(NH2trz)3]Br2 from FeBr2. Fe(NH2trz)3 was a violet color and FeBr2 was red. My understanding of colors in coordination complexes is that reds are high energy...
  44. ReidMerrill

    Coordination Chemistry: Ligands

    Homework Statement Describe, using sketches, how the following ligands can act as both σ-donors and π-acceptors: CN- P(CH3)3 SCN- Homework EquationsThe Attempt at a Solution I suspect it has something to do with these ligands having lone pair electrons AND open π* orbitals. How correct is this...
  45. ReidMerrill

    Coordination Chemistry and d electron numbers

    Homework Statement Predict the number of unpaired electrons [Cr(H2O)6]3+ Homework EquationsThe Attempt at a Solution I under stand how to fill out the MO with the eg and t2g and all but I'm confused about determining the number of electrons. The answers state this is an octahedral d3 but I...
  46. Titan97

    Find spin only magnetic moment of [Fe(H2O)5NO](2+)

    Homework Statement Find spin only magnetic moment of ##[Fe(H2O)5NO]^{2+}## Homework Equations None The Attempt at a Solution When I used Google, the magnetic moment in 3.87 ##Fe## is in +1 oxidation state. So configuration is $$[Ar]3d^64s^1$$ There are 5 unpaired electrons. How does magnetic...
  47. AdityaDev

    How is the Electron Configuration of Central Atoms in Complex Salts Determined?

    I am confused with the electron configuration of central atoms in complex salts eg. ##[Fe(CN)_6]^{2-}## configuration just Fe atom is Now the complex is low spin so the configuration becomes, Now we have 6CN. where will they donate their electrons? Will the donate electrons in the remaining...
  48. B

    Metals and Coordination Chemistry

    My syllabus notes the following points about transition metals and complex ions, but provides no textbook. d – and f – Block Elements Transition Elements General introduction, electronic configuration, occurrence and characteristics, general trends in properties of the first row...
  49. B

    Coordination Chemistry: how many ions formed when dissolved

    Hey, [Co(NH3)4Cl2]Cl I don't understand how there isn't just one mole of Cl- ions formed when you dissolve one mole of the compound in water. The answer is '2 moles', but I don't see how :( Another example is [Co(NH3)4]Cl3 How many moles of ions are formed when 1 mole of this...
  50. R

    Coordination Chemistry Homework: Determine Stability & K_{eq} Values

    Homework Statement Consider the reaction that produces [MCl_{6}]^{3 - } thus: [M(H_{2}O)_{6}]^{2 + } + 6 Cl^{ - } \leftrightarrow [M(Cl)_{6}]^{2 + } + 6H_{2}O where M = Cr, Mn \text{ or } Fe. Ascertain the stability of complexes. :) Also, determine the order of K_{eq} values when the...
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