The present invention provides:dinitropyrazole derivatives of formula (I)in which: R═NO2, NH2, NF2, NHOH, OH or NHNH2 and R′═H when R═NH2, NF2, NHOH, OH or NHNH2 or R′═H, NH2 or a linear or branched C1-C4 alkyl group, optionally substituted by at least one hydroxy and/or one fluoro group, when R═NO2； other than 4-amino-3,5-dinitropyrazole； and also the salts of said derivatives of formula (I) in which R′═H；the preparation of said derivatives and of their salts； andenergetic compositions comprising at least one of said derivatives and/or at least one salt of such a derivative.
