further explanation of ligands

[Hannah Kaye 1L]

Can someone help further explain ligands and what they are made of? How do they occur and what purpose do they serve?

[305597516]

Usually when we refer to ligands, they are part of a coordinate covalent bond where they play a specific role. Coordinate covalent bonds involve a cation and an atom/molecule that is electron-rich. Ligands are the electron-rich atoms/molecules in this interaction basically. So for your question what they are made of, basically I think just elements/atoms of these elements. I'm not completely sure about the other two questions though, sorry.