Ligand B results in the complex with the larger δ.
As we know from quantum mechanics that, δ = hc/λ , so higher the wavelength, lower will be the δ value of the complex itself.
In coordination chemistry, a ligand is an ion or molecule that binds to a primary metallic atom to shape a coordination complex. The bonding with the steel typically involves formal donation of 1 or greater of the ligand's electron pairs often thru Lewis Bases.
A coordination complex is the fabricated from a Lewis acid-base response wherein neutral molecules or anions (known as ligands) bond to a principal metallic atom (or ion) by coordinate covalent bonds. Ligands are Lewis bases - they include as a minimum one pair of electrons to donate to a metallic atom/ion.
Ligands are atoms or molecules that bind to a significant metal atom in a coordination compound. The ligands may be labeled into 3 sorts: easy, complicated, and coordinative unsaturation. A simple ligand is an atom or molecule that binds directly to the metal ion.
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