An ionic liquid composition comprising a complex of a trihalo aluminum (III) species with at least one organic uncharged ligand comprising a ring structure having at least three ring carbon atoms and at least one ring heteroatom selected from nitrogen and sulfur, wherein the complex is a liquid at a temperature of 100 C. or less. Methods of electroplating aluminum onto a metallic substrate using the above-described ionic liquid composition are also described.

An ionic liquid composition comprising a complex of a trihalo aluminum (III) species with at least one organic uncharged ligand comprising a ring structure having at least three ring carbon atoms and at least one ring heteroatom selected from nitrogen and sulfur, wherein the complex is a liquid at a temperature of 100 C. or less. Methods of electroplating aluminum onto a metallic substrate using the above-described ionic liquid composition are also described.

An ionic liquid composition comprising a complex of a trihalo aluminum (III) species with at least one organic uncharged ligand comprising a ring structure having at least three ring carbon atoms and at least one ring heteroatom selected from nitrogen and sulfur, wherein the complex is a liquid at a temperature of 100 C. or less. Methods of electroplating aluminum onto a metallic substrate using the above-described ionic liquid composition are also described.

The present disclosure provides synthesis methods used in the preparation of an acyl chain of QS-21 and its derivative.