context: Harmonic compound [1] or the support complex [2] or symmetrical compound [3] in chemistry is a chemical structure consisting of a central atom or one or more often ions, which is usually a metal, surrounding It has a group of atoms and molecules, usually called ligaments. In complexes the bond is a symmetrical bond. [4] [5]
question: What is a symmetrical compound?
answers.text: chemical structure consisting of a central atom or one or more often ions