A new view of relationships of the N-N bond dissociation energies of cyclic nitramines. Part I. Relationships with heats of fusion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008583" target="_blank" >RIV/00216275:25310/09:00008583 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A new view of relationships of the N-N bond dissociation energies of cyclic nitramines. Part I. Relationships with heats of fusion

Popis výsledku v původním jazyce

The values of bond dissociation energies, BDE, of the weakest N?N bonds and total energies, Etotal, of molecules have been calculated for 14 cyclic nitramines by means of the UB3LYP/6-31G* and UB3LYP/6-31+G* // PM3 methods. The relationships found between the BDE values and values of heat of fusion, Hm,tr, of these nitramines are not unambiguous. More unambiguous and logical relationships result from comparison of the BDE/Etotal ratio and the Hm,tr values. The dependences found appear suitable for prediction of the Hm,tr values for cis-1,3,4,6-tetranitrooctahydroimidazo[4,5-d]imidazole (31.89 kJ mol?1), 4,8,10,12-tetranitro-2,6-dioxa-4,8,10,12-tetraazaisowurtzitane (41.73 kJ mol?1), and 4,6,10,12-tetranitro-2,8-dioxa-4,6,10,12-tetraazaisowurtzitane (41.67 kJ mol?1); the predicted values of Hm,tr are within the expected limits and can represent a stabilizing effect of crystal lattice in decomposition reactions of the studied compounds in their molecular crystals.

Název v anglickém jazyce

A new view of relationships of the N-N bond dissociation energies of cyclic nitramines. Part I. Relationships with heats of fusion

Popis výsledku anglicky

The values of bond dissociation energies, BDE, of the weakest N?N bonds and total energies, Etotal, of molecules have been calculated for 14 cyclic nitramines by means of the UB3LYP/6-31G* and UB3LYP/6-31+G* // PM3 methods. The relationships found between the BDE values and values of heat of fusion, Hm,tr, of these nitramines are not unambiguous. More unambiguous and logical relationships result from comparison of the BDE/Etotal ratio and the Hm,tr values. The dependences found appear suitable for prediction of the Hm,tr values for cis-1,3,4,6-tetranitrooctahydroimidazo[4,5-d]imidazole (31.89 kJ mol?1), 4,8,10,12-tetranitro-2,6-dioxa-4,8,10,12-tetraazaisowurtzitane (41.73 kJ mol?1), and 4,6,10,12-tetranitro-2,8-dioxa-4,6,10,12-tetraazaisowurtzitane (41.67 kJ mol?1); the predicted values of Hm,tr are within the expected limits and can represent a stabilizing effect of crystal lattice in decomposition reactions of the studied compounds in their molecular crystals.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Energetic Materials

ISSN

0737-0652

e-ISSN

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Svazek periodika

27

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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