Disodium EDTA ( often written as "'Na 2 H 2 Y "') only forms four coordinate covalent bonds to metal cations at pH values d " 12.
12.
The ability of EDTA to potentially donate its six lone pairs of electrons for the formation of coordinate covalent bonds to metal cations makes EDTA a "'hexadentate "'ligand.
13.
:: So for the example given, would the hybridization be 3 unshared pairs + 1 pair from the coordinate covalent bond = sp 3 ? talk ) 01 : 04, 17 July 2008 ( UTC)
14.
It doesn't matter where the electrons came from; they are shared between the atoms the same as if it is a coordinate covalent bond, a " normal " bond, or from some sort of electrochemistry.
15.
The Co-Cl bonds ( in the above example ) are now classed as ionic, and each Co-N bond is a coordinate covalent bond between the Lewis acid Co 3 + and the Lewis base NH 3.
16.
For example, the ion Ag + reacts as a Lewis acid with two molecules of the Lewis base NH 3 to form the complex ion Ag ( NH 3 ) 2 +, which has two Ag?! N coordinate covalent bonds.
17.
In the diamond-like structure, called cubic boron nitride ( tradename Borazon ), boron atoms exist in the tetrahedral structure of carbons atoms in diamond, but one in every four B-N bonds can be viewed as a coordinate covalent bond, wherein two electrons are donated by the nitrogen atom which acts as the Lewis base to a bond to the Lewis acidic boron ( III ) centre.
