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Which type of ligand is EDTA?

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Which type of ligand is EDTA?

Table of Contents

  • Which type of ligand is EDTA?
  • How does EDTA act as a ligand?
  • What is Spectrochemical series ligands?
  • How does coordination complexes take place in EDTA?

Hexadentate ligand
A hexadentate ligand in coordination chemistry is a ligand that combines with a central metal atom with six bonds. One example of a hexadentate ligand that can form complexes with soft metal ions is TPEN. A commercially important hexadentate ligand is EDTA.

How many ligands does EDTA?

EDTA4- forms very stable complexes with most of the transition metals. This hexadentate ligand forms very stable complexes (usually octahedral structures) with most of the transition metals. The donor atoms in EDTA4- are the two N atoms, and the four, negatively charged O atoms.

How does EDTA act as a ligand?

The EDTA binds to them, sequestering them and preventing their interference. In the calcium complex, [Ca(EDTA)]2–, EDTA is a tetradentate ligand, and chelation involves the two nitrogen atoms and two oxygen atoms in separate carboxyl (-COO‾) groups.

When EDTA is fully Deprotonated it acts as what type of ligand?

hexadentate ligand
This is EDTA acting as a hexadentate ligand or all six sites on the ETDA bind to the metal ion. How would you describe the geometry of the octahedral Fe+3 in the complex?

What is Spectrochemical series ligands?

A spectrochemical series is a list of ligands ordered by ligand “strength”, and a list of metal ions based on oxidation number, group and element.

Is EDTA a strong or weak ligand?

Is EDTA a strong field ligand? Yes it is and more than being strong it is a chelating ligand so it forms very stable complex. If a ligand is chelating in nature then it can form stable low spin complexes. As for example oxalate is a weak ligand but still with Co3+ it forms low spin octahedral complex.

How does coordination complexes take place in EDTA?

When this ion bonds to a metal atom, the two N atoms, and four of the O atoms, are used. In this complex, a single EDTA4- ion forms 6 bonds to the Fe atom (i.e., 2 Fe-N bonds and 4 Fe-O bonds). The coordination number of 6 results in an octahedral structure.

What is spectrochemical series example?

Spectrochemical series gives the arrangement of ligands in the increasing order of crystal field splitting. Weak field ligands cause less crystal field splitting. They form high spin complexes. Examples include chloride ions, fluoride ions etc. Strong field ligands cause greater crystal field splitting.

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