Is EDTA a coordination compound?
Is EDTA a coordination compound?
coordination compounds Ethylenediaminetetraacetic acid (EDTA) forms very stable complexes, and it is widely used for this purpose. Its applications include water softening (by tying up Ca2+ and Mg2+) and the preservation of organic substances, such as vegetable oils and rubber, in which case it combines with traces…
What is the coordination No of EDTA?
6
The coordination number for EDTA is 6. The coordinate number of the metal or ion is the number of ligand atoms that are directly attached to the core metal atom or ion by the coordinate bond. It’s the number of chemical bonds formed between the ligand and the core metal atom or ion.
Which ligand is EDTA?
hexadentate ligand
EDTA is a hexadentate ligand, which implies that it binds multiple (six) times. It binds twice at the nitrogen and four at the oxygens.
What is the geometry of EDTA complex?
EDTA4− usually binds to a metal cation through its two amines and four carboxylates. Many of the resulting coordination compounds adopt octahedral geometry.
What is EDTA in chemistry?
A chemical that binds certain metal ions, such as calcium, magnesium, lead, and iron. It is used in medicine to prevent blood samples from clotting and to remove calcium and lead from the body. Also called edetic acid and etheylenediaminetetraacetic acid. …
How many coordinate bonds does EDTA form?
6 bonds
| EDTA4- When this ion bonds to a metal atom, the two N atoms, and four of the O atoms, are used. | [Fe(EDTA)]2- 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 the coordination number of the transition metal ion in CE EDTA )]?
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.
How many binding sites are present in EDTA?
6 binding sites
Ethylenediaminetetraacetic acid (EDTA) is called a hexadentate ligand, meaning it has 6 binding sites from the four acid groups and the two amine…
What is EDTA in Analytical Chemistry?
Ethylenediaminetetraacetic acid, or EDTA, is an aminocar- boxylic acid. The structure of EDTA is shown in Figure 9.25a. EDTA, which is a Lewis acid, has six binding sites (the four car- boxylate groups and the two amino groups), providing six pairsof electrons.
What is EDTA and its function?
A chemical that binds certain metal ions, such as calcium, magnesium, lead, and iron. It is used in medicine to prevent blood samples from clotting and to remove calcium and lead from the body. It is also used to keep bacteria from forming a biofilm (thin layer stuck to a surface). It is a type of chelating agent.
Why is EDTA used in buffers?
EDTA (ethylenediaminetetraacetic acid) is a chelating agent that binds divalent metal ions such as calcium and magnesium. EDTA can be used to prevent degradation of DNA and RNA and to inactivate nucleases that require metal ions. EDTA can also be used to inactivate metal ion-requiring enzymes.
What are the donor atoms in EDTA?
The donor atom in EDTA are two nitrogen (N) and four oxygen (O). It is a hexadentate ligand. It can bind through two nitrogen and four oxygen atoms to a central metal ion.
