Explosives are employed extensively not only in military areas but also in civilian applications. There are many researchers working on the discovery of explosives. In recent years, synthetic and theoretical studies on polycyclic aromatic explosives have received significant interest. The present short review concentrates on the synthesis and some of the physico-chemical characteristics of energetic materials of the classes of tetraazapentalene, naphthalene, di-and tetraaza-naphthalene, pyrazolo-pyrazole, benzofuroxan, tetrazine and tetrazene derivatives as well as theoretical studies. A brief comment is also made on the emerging explosive concepts such as velocity of detonation, detonation pressure etc. The compounds in the review have the potential for subsequent applications in the area of energetic materials. Therefore, an endeavor is made to assemble the important contributions made by the various scientists in the area of energetic materials in this review.