Ligand

Science / Chemistry / Ligand: 1. In inorganic chemistry, a molecule or ion that binds to a metal cation to form a complex. 2. In biochemistry, a molecule that binds to a receptor, having a biological effect.

Weak Ligand

Science / Chemistry / Weak Ligand: A ligand that causes a small crystal field splitting which results in a high-spin complex. MORE

Strong Ligand

Science / Chemistry / Strong Ligand: A ligand that causes a large crystal field splitting which results in a low-spin complex. MORE

Monodentate

Science / Chemistry / Monodentate: A ligand that has only one atom that coordinates directly to the central atom in a complex. For example, ammonia and chloride ion are monodentate ligands of copper in the complexes [Cu(NH3)6]2+ and [c MORE

Polydentate

Science / Chemistry / Polydentate: A ligand that has more than one atom that coordinates directly to the central atom in a complex. Polydentate ligands are called chelating agents when two or more coordinating atoms are attached to the MORE

Chelate

Science / Chemistry / Chelate: A stable complex of a metal with one or more polydentate ligands. For example, calcium complexes with EDTA to form a chelate. MORE

Edta

Science / Chemistry / Edta: A polydentate ligand that tightly complexes certain metal ions. EDTA is used as a blood preservative by complexing free calcium ion (which promotes blood clotting). EDTA's ability to bind to lead ions MORE

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