What is square planar examples?

Square planar geometry is a type of molecular geometry in which a central atom is surrounded by four atoms or ligands arranged in a square planar shape. Some examples of molecules that exhibit square planar geometry include:

  1. Platinum(II) complexes: Platinum(II) complexes such as cisplatin and carboplatin have a square planar geometry in which two chloride ligands and two amine ligands surround the central platinum atom.

  2. Nickel complexes: Nickel complexes such as nickel tetracarbonyl have a square planar geometry in which four carbon monoxide ligands surround the central nickel atom.

  3. Copper complexes: Copper complexes such as copper tetrafluoroborate have a square planar geometry in which four fluoride ligands surround the central copper atom.

  4. Palladium complexes: Palladium complexes such as palladium tetrakis(triphenylphosphine) have a square planar geometry in which four triphenylphosphine ligands surround the central palladium atom.

  5. Gold(I) complexes: Gold(I) complexes such as chloro(triphenylphosphine)gold(I) have a square planar geometry in which one chloride ligand and three triphenylphosphine ligands surround the central gold atom.

These examples illustrate that square planar geometry is commonly found in transition metal complexes, which often have coordination numbers of four or six. Square planar complexes are often highly symmetrical and exhibit interesting optical and magnetic properties.