Explosophores

Although this classification is in principle correct, the distinction between the terms explosophore and auxoplose is very vague and of little practical value... 

Plosophore or Explosophore, See under Auxo-explose or Auxoplosophore in Vol 1, A513-R to A514-R... 

Looking for and identifying explosophoric groups and potential aggravating-/attenuating structural factors. 

The nitro group, whether attached to aromatic or aliphatic carbon, is probably the most widely studied of the functional groups and this is in part attributed to its use as an explosophore in many energetic materials. The chemistry of the nitro group has been extensively reviewed in several excellent works including in a functional group series. " ... 

The weakest bonds in an explosive will often determine its sensitivity to impact and such bonds are usually present in the explosophoric groups. Steric and electronic factors also play an important role. Unsurprisingly, factors which increase explosive performance usually have a detrimental effect on stability and sensitivity, and so a compromise must be made. As the database of energetic materials and their properties is ever increasing this task becomes... 

A common route to nitropyrazoles involves the diazotization of the corresponding amino derivatives in the presence of excess sodium nitrite." Diazotization in the presence of sodium azide allows the introduction of the azido explosophore ."... 

Many energetic componnds have been reported where the azido group is in conjunction with another explosophore . This has been a popular approach to new energetic materials. 2-Azidoethyl nitrate, an explosive resembling nitroglycerine (NG) in its properties, was synthesized some time ago from the reaction of 2-chloroethanol with sodium azide followed by G-nitration of the product, 2-azidoethanol, with nitric acid. °... 

Displacements with azido anion are tolerant of many pre-existing explosophoric groups but the nitrate ester group readily undergoes displacement as seen for the synthesis of bis(2-azidoethyl)nitramine (13) from Ai-nitrodiethanolamine dinitrate (12) (DINA). " ... 

It has been usual practice to introduce such explosophoric groups in the structure of a molecule with the use of conventional nitrating agents such as absolute nitric acid, sulfuric acid-nitric acid, acetic anhydride-nitric acid, ammonium nitrate-acetic anhydride-nitric acid... 

All the terms discussed so far try to classify an explosive from its physical or explosive properties. The classification of explosives from a chemical viewpoint is of course more relevant to this book. Explosives can be classified according to the functionality they contain, and in particularly, the functional groups that impart explosive properties to a compound. Piets (Zh. Obshch. Khim., 1953, 5, 173) divided explosives into the following eight classes depending on the groups they contained each group is known as an explosophore . 

Auxoexplose or Auxoplosophore Explosophore or Plosophore. According to Lothrop ... 

According to the Pletz theory the expl props of any given substance depend upon the presence of definite structural groupings called explosophores, while the auxoexploses modify or fortify the expl props brought about by explosophores... 

On the basis of this theory Pletz examined eleven classes of organic compds and subdivided all expls into the following eight classes contg explosophores ... 

This heterocyclic structure is an unusual molecule, having an interesting mixt of aromatic-aliphatic properties. It is considered as an explosophoric of possible great use, however with less power than tetrazole. A representative group of the expl derivatives of thiophene are presented below... 

Handrick (Ref 3), Pletz (Ref 1) proposed the theory of explosophores and auxoexploses analogous to the Witt theory of chromophores auxochromes and to the Ehrlich theory of toxophores and autotoxes... 

According to Piets the explosive properties of any substance depend upon the presence of definite structural groupings, called explosophores. The auxoploses fortify or modify the explosive properties conferred by the explosophore. Piets... 

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