The thermal decomposition behaviour of approx. 60 nitrogen-rich substances on the basis of tetrazole and tetrazine structures was investigated by thermoanalytical methods. Decomposition mechanisms initiated by ring opening of the heterocycles could be established. Substituent effects on the exothermic decomposition characteristics of nitrogen-rich compounds am demonstrated.

The microbial degradation of nitrocellulose investigated in a composting environment appeared not to be straightforward. Depending on the degree of esterification the large nitrate groups may sterically hinder the enzymatic hydrolysis or effectively block it. Mikrobieller Abbau von Nitrocellulose im Kompostiermilieu Abhangig vom Veresterungsgrad konnen die voluminosen Nitratgruppen den mikrobiellen Abbau von Nitrocellulose sterisch hindern oder vollstandig blockieren. Das zeigen Abbauversuche an Folien im Kompostiermilieu. Degradation microbielle de la nitrocellulose en milieu de compostage En fonction du degre d'esterification, les groupes volumineux de nitrate peuvent empecher steriquement ou bloquer completement la degradation microbielle de la nitrocellulose. C'est ce que montrent des essais de degradation sur des films en milieu de compostage.

RDX products obtained at high heating rates are discussed. RDX was decomposed by combustion in pressurized bomb and by short laser pulse irradiation.

AbstractGas generators with high boron content of interest for ducted rockets were prepared and characterized. The parameters tested were: combustion residue pressure exponent flow and temperature of the ejected boron particles mechanical properties. The results of the experments (optical bomb, high speed camera, two‐color pyrometer, thermal analysis, tensile test) are presented and discussed.

A method is presented to determine thermodynamic and kinetic parameters from complex thermoanalytical curves. Such curves are obtained when thermoanalytical events like phase transition and chemical decomposition overlap.

From the Raman, infrared and electronic spectra all of the fundamental vibrational frequencies were determined for both the ground state4A2g and the excited2E g In addition some fundamental frequencies were established for the4T2g and4T1g excited states from low temperature absorption spectra.

Chemischer Informationsdienst. Organische ChemieVolume 2, Issue 52 Organoelement Compounds ChemInform Abstract: PHOSPHORESZENZLOESCHUNG VON CHROM(III)-KOMPLEXEN (I)-(IV) DURCH DISAUERSTOFF ACHIM PFEIL, Search for more papers by this author ACHIM PFEIL, Search for more papers by this author First published: December 28, 1971 https://doi.org/10.1002/chin.197152034AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume2, Issue52December 28, 1971 RelatedInformation

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuenching of the phosphorescence of some chromium(III) complexes by molecular oxygenAchim PfeilCite this: J. Am. Chem. Soc. 1971, 93, 21, 5395–5398Publication Date (Print):October 1, 1971Publication History Published online1 May 2002Published inissue 1 October 1971https://pubs.acs.org/doi/10.1021/ja00750a013https://doi.org/10.1021/ja00750a013research-articleACS PublicationsRequest reuse permissionsArticle Views143Altmetric-Citations35LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

The emission of hexafluoromanganate with various cations (K, Rb, Cs) has been studied. The observed emission has a long lifetime and is assigned as phosphorescence corresponding to the transition 2Eg → 4A2g. From both absorption and emission data the origin of the phosphorescence is located. The emission is quenched by traces of Mn(II).

A high pressure nitrogen flash lamp is described which has a half-height width of less than 200 nsec and a light output of more than 5×1014 quanta/pulse.