Dense energetic compounds of C, H, N, and O atoms IV nitro and azidofurazan derivatives

Abstract

Botli diaininofiira:arz 5 (DAF) and dianiinoazofiira:an 6 (DAAF) 1i.el-e convested to 2,2,3]rsiazoIo [4,5-c] 9 and 5-(4-azido-1,2,5-oxadiazo1-3-yl

X-Ray Crystal Structures of Five Nitrogen-Bridged Bifurazan Compounds

“…À2468 (4) 10558 (5) 4083 (5) 66 (2) DAHzF O(1) 4991 (2) 17416 (2) 5246 (2) 47 (1) O(2) 1907 (2) 9341 (2) 8580 (2) 42 (1) O(3) 2270 (3) 5577 (2) 11670 (2) 39 (1) N(1) 3238 (3) 18042 (3) 4580 (2) 43 (1) N(2) 4627 (3) 16128 (2) 6561 (2) 36 (1) N(3) À47 (4) 17342 (3) 5170 (3) 47 (1) N(4) 1763 (4) 14866 (3) 7728 (2) 43 (1) N(5) 2729 (3) 13766 (2) 8910 (2) 34(1) N (6) 1935 (3) 11145 (2) 7923 (2) 39(1) N (7) 2442 (3) 9135 (2) 10138 (2) 37(1) N (8) 3183 (3) 11116 (3) 11859 (2) 37(1) C (1) 1889 (3) 17180 (3) 5428 (3) 31(1) C (2) 2757 (3) 15970 …”

“…The bonding in the furazan ring is formally aromatic which induces planarity (3±5) . The crystal structures of the two-ring furazans, dinitroazofurazan (DNAzF) (4) and aminonitroazoxyfurazan (ANAF) (5) , have been published previously, and an ORTEP plot of dinitroazoxyfurazan (DNAF) is available (6) . A structure determination of diaminoazoxyfurazan (DAAF) at room temperature has been completed but is not published (7) .…”

Synthesis and structure of 4-[(4-Nitro-1,2,5-oxadiazol-3-yl)-NNO-azoxyl]-1, 2,5-oxadiazol-3-amine

“…Recently the energetic material dinitroazoxyfurazan (2) was prepared in these laboratories [4]. The compound 2 was found to exhibit excellent energetic and thermal properties desired of a castable material (Table I).…”

Dinitro Trifurazans with Oxy, Azo, and Azoxy Bridges

“…Although nitrofurazans have been studied for many years, a relatively small set of high energetic furazans possessing as a rule one or two furazan rings was published. 3,4-Dinitrofurazan (1), (3) 3-cyano-4-nitrofurazan (2), (3) 5-(3-nitrofurazan-4-yl)-1H-[1,2,3]triazolo [4,5-c]-furazan inner salt (3) (4,5) , 4,4-dinitrobifurazan (4) (1, 3,6) , 4,4-dinitrodifurazalyl ether (5) (7) , 4,4-dinitrodifurazalyl sul®de and S-oxides (6a-c) (8) , 4,4 H dinitroazo-(7) (3,9) and -azoxyfurazan (8) (3,10,11) , methylene-bis(3-nitroamino-4-nitrofurazan) (9) (12,13) In our laboratory investigation of nitrofurazans has been carried out for about two decades. (5,14,15) The use of the furazan ring as key building block was not accidental in this work.…”