Organometallic chemistry is that the subject of organometallic compounds, chemical compounds including a minimum of one bond between an atom of an organic molecule and a metal, including alkaline, alkaline earth, and transition metals, and sometimes extended to cover metalloids like boron, silicon, and tin, as well.
Apart from bonds to organyl particles or molecules, bonds to inorganic carbon, like carbon monoxide gas, cyanide, or carbide, are commonly studied to be organometallic also. Some related composites such as transition metal hydrides and metal phosphine complexes are often included in discussions of organometallic compounds, though stringently speaking, they are not significantly organometallic.
In organic chemistry, the word organocatalysis refers to a form of catalysis, whereby the rate of a chemical reaction is increased by an organic catalyst referred to as an "organocatalyst" consisting of carbon, hydrogen, sulfur, and other nonmetal elements found in organic compounds. Because of their identity in composition and description, they are often mistaken as a misnomer for enzymes due to their similar effects on reaction speeds and forms of catalysis involved.
Bio-organic chemistry studies substances that carry the life processes while attempting to understand their biological purposes. Bioinorganic chemistry is an area that analyzes the role of metals in biology. Bioinorganic chemistry involves the study of both natural phenomena such as the behavior of metalloproteins as well as artificially introduced metals, including those that are non-essential, in medicine and toxicology. Many biological methods such as respiration depend upon particles that fall within the field of inorganic chemistry. The method also involves the study of inorganic forms or mimics that reflect the function of metalloproteins.