Výsledky vyhledávání - "Joseph R. Autera"

Application of13C and15N NMR spectroscopy to structural studies on nitramines

Autor: Joseph R. Autera, Theodore Axenrod, Suryanarayana Bulusu

Publikováno v: Organic Magnetic Resonance. 16:52-56

15N and 13C chemical shifts and the 1J(15N15N), 1J(15N13C) and 1J(13CH) coupling constants have been determined for a number of 15N-enriched cyclic and acyclic secondary nitramines. The results are interpreted in terms of both electronegativity effec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::441ed9e4e2b5ded6e482d4baf85c4f5a
https://doi.org/10.1002/mrc.1270160114

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Synthesis of nitrogen-15 labeled 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) and 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane (HMX)

Autor: Joseph R. Autera, Suryanarayana Bulusu, T. Axenrod

Publikováno v: Journal of Labelled Compounds and Radiopharmaceuticals. 17:707-710

Procedures are described for the synthesis of 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane (HMX) fully labeled with nitrogen-15.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9df052316e83b9bdf2e5f51810809960
https://doi.org/10.1002/jlcr.2580170513

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Synthesis of double 15N-labeled nitramines: N-nitropiperidine and N-nitrodimethylamine

Autor: T. Axenrod, Suryanarayana Bulusu, Joseph R. Autera

Publikováno v: Journal of Labelled Compounds and Radiopharmaceuticals. 17:711-714

Double 15N-labeled N-nitropiperidine and N-nitrodimethylamine have been conveniently prepared by oxidation of the corresponding nitrosamines. Dimethylamine-15N was commercially available while the required piperidine-15N was synthesized from cyclopen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ceb051e5974e3a3df66a8c179d510025
https://doi.org/10.1002/jlcr.2580170514

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Deuterium kinetic isotope effect in the thermal decomposition of 1,3,5-trinitro-1,3,5-triazacyclohexane and 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane: its use as an experimental probe for their shock-induced chemistry

Autor: Rudolph W. Velicky, Joseph R. Autera, David I. Weinstein, Suryanarayana Bulusu

Publikováno v: The Journal of Physical Chemistry. 90:4121-4126

An isothermal thermogravimetric analysis (TGA) study of the decomposition of RDX, HMX and the respective deuterated analogues, RDX-d/sub 6/ and HMX-d/sub 8/, has been carried out. In RDX, a kinetic isotope effect (KIE) (K/sub h//K/sub d/) of 1.5 was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d6628aa1e9425689f760f4938fcdacb
https://doi.org/10.1021/j100408a057

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Initiation mechanism of TNT: Deuterium isotope effect as an experimental probe

Autor: Suryanarayana Bulusu, Joseph R. Autera

Publikováno v: Journal of Energetic Materials. 1:133-140

A large deuterium kinetic isotope effect in the thermal decomposition of methyl deuterated 2,4,6-trini-trotoluene (TNT-α-d3) has been confirmed and tested for its possible influence on the shock sensitivity and detonation velocity. A comparison of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f5cff4baa102eac4a17f99277a07e262
https://doi.org/10.1080/07370658308010629

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Nitrogen-15 Tracer Studies of Nitrolysis of Hexamethylenetetramine

Autor: Thomas C. Castorina, Joseph R. Autera

Publikováno v: I&EC Product Research and Development. 4:170-176

The path of amino nitrogens in the nitrolysis of hexamethylenetetramine (hexamine) to a mixture of the homologous cyclic methylenenitramines, 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclo octane (HMX) and 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13de12a9730f5c1101d0f5080a466d76
https://doi.org/10.1021/i360015a006

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Vibrational spectra of β‐cyclotetramethylene tetranitramine and some of its isotopic isomers

Autor: Joseph R. Autera, Zafar Iqbal, Suryanarayana Bulusu

Publikováno v: The Journal of Chemical Physics. 60:221-230

The infrared and Raman spectra of the β‐polymorph of cyclotetramethylene tetranitramine (commonly known as ``HMX'' in the explosives field) and its isotopic isomers, HMX‐15NO2, HMX‐15N(NO2), HMX‐13C(50%), and HMX‐d8, have been recorded in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b095fe232d7667ea078cd0d8c9355cc5
https://doi.org/10.1063/1.1680772

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Carbon-14 Tracer Study on the Origin of Tetranitromethane Carbon during the Nitration of Toluene

Autor: Frederick S. Holahan, Joseph R. Autera, Samuel Helf, Thomas C. Castorina

Publikováno v: Journal of the American Chemical Society. 84:756-759

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a8af7ff24f5b0ef5595b43525c29cf35
https://doi.org/10.1021/ja00864a016

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Infrared and Raman Spectra of 1,3,5-Trinitro-1,3,5-Triazacyclohexane (RDX)

Autor: Zafar Iqbal, Suryanarayana Bulusu, K. Suryanarayanan, Joseph R. Autera

The transmission infrared and the laser excited Roman spectra of polycrystalline RDX have been measured in the range of 40 to 4000/cm. To aid assignments in the spectral region of 400 to 4000/cm, the spectra of two types of N15 - labeled samples and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49b92780e84da73286dc58f5667b7aca
https://doi.org/10.21236/ad0752899

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