Sulfur Nitride Research Articles

A matrix-isolation study of gaseous intermediates in the direct formation of poly(sulphur nitride) from tetrasulphur tetranitride using a silver selenide catalyst: Evidence for the involvement of HNSO

Matrix isolation of the vapour species produced by the passage of S 4N 4 vapour over silver selenide heated to ca 160°C produces unequivocal IR evidence (including the results of experiments with 15N-enriched samples) not of the thiazyl monomer, NS but of thionylimide, HNSO, in addition to disulphur dinitride, S 2N 2. The significance of these findings is considered in relation to possible synthetic routes to poly(sulphur nitride).

Sulphur nitride in organic chemistry. Part 17. Preparation of 1,8-diaminocarbazole

Tetrasuiphur tetranitride (1) reacted with 5,5′-di-t-butylbiphenyl-2,2′-diol (3a–d) to give 4-(2-hydroxyphenyl)-2,1,3-benzothiadiazole (4a) and (4c), bi-2,1,3-benzothiadiazol-4-yl (5), and benzofurano[3,2-e]-2,1,3-benzothiadiazole (6), the yields of which were dependent upon the ortho substituent of (3) and an equimolar ratio of (1) : (3). Reduction of compound (5) with SnCl2in acetic acid-concentrated hydrochloric acid gave the imidazolyl-thiazole (11), while reduction with Sn in concentrated hydrochloric acid gave tetra-aminobiphenyl (9), which was diazotised to give the bitriazolyl (12). Compound (9) when heated in phosphoric acid give 1,8-diaminocarbazole (2)[27% yield from the dibromobiphenyldiol (3c)].

Organic heterocyclothiazenes. Part 7. Chemistry of 1,3,5,2,4,6-trithiatriazepines

Methyl trithiatriazepine-7-carboxylate (1), obtained from tetrasulphur tetranitride and dimethyl acetylenedicarboxylate, is hydrolysed to the carboxylic acid (3) which is decarboxylated in boiling dioxane to give the parent 1,3λ4δ2,5,2,4,6-trithiatriazepine (4). Trithiatriazepine (4) is a remarkably stable 10π aromatic system similar to, although less polar than, the trithiadiazepine(2b). The triazepine (4) is less reactive towards electrophilic substitution than the diazepine (2b) but it can be nitrated with nitronium tetrafluoroborate, and brominated with N-bromosuccinimide in acetonitrile at 110 °C. The thermal stability of compounds (2b) and (4) suggests that the unknown sulphur nitride trithiatetrazepine (8) would be thermodynamically stable.

ChemInform Abstract: Transition‐Metal Complexes of Inorganic Sulphur‐Nitrogen Ligands

AbstractReview: (preparation, spectroscopic and structural studies, reactions of complexes of sulphur nitrides, thiazyl halides, sulphur‐nitrogen oxides, sulphur imides, and cyclometallathiazenes and related complexes.

Mass spectral studies on the thermal decomposition of tetrasulfur tetranitride and the mechanism for formation of polymeric sulfur nitride

On propose un schema de fragmentation dans lequel les reactions allant de S 4 N 4 a SN sont reversibles et les reactions secondaires avec perte de N et S ne le sont pas. Le processus de polymerisation met en jeu la reaction de (SN) 2 avec SN

INORGANIC HETEROCYCLE COMPOUNDS AND CHARGE TRANSFER COMPLEXES

Abstract By reduction of sulfur nitride, S4N4, with hydrazine, N2H4, we have prepared all the seven eight-membered ring sulfurimines in the crystallized form. However, besides sulfurimine crystals, one notes the presence of elongated hexagonal crystals, which are very different in size and morphology. A study of these isolated crystals by: Chemical analysis. Infrared spectrography and U.V. spectrography. Radiocrystallography, shows that they are molecular charge-transfer complexes (C.T.C.), Hydrogen bond type: A few examples are given in Figure 11, in which are reported the chemical, crystallographical and spectroscopic results for solid octahedral sulfur derivatives.

ChemInform Abstract: Addition and Coordination Compounds of Sulfur Nitride (S4N4) with Several Metals

Chemischer InformationsdienstVolume 17, Issue 18 Reviews ChemInform Abstract: Addition and Coordination Compounds of Sulfur Nitride (S4N4) with Several Metals J. KAMENICEK, J. KAMENICEKSearch for more papers by this authorF. BREZINA, F. BREZINASearch for more papers by this author J. KAMENICEK, J. KAMENICEKSearch for more papers by this authorF. BREZINA, F. BREZINASearch for more papers by this author First published: May 6, 1986 https://doi.org/10.1002/chin.198618371Read the full textAboutPDF 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 onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume17, Issue18May 6, 1986 RelatedInformation

ChemInform Abstract: Sulphur Nitrides in Organic Chemistry. Part 16. Reaction of Tetrasulphur Tetranitride with Alkyl‐ and Alkylhalogeno‐phenols.

AbstractDie Phenole (I) reagieren mit dem Nitrid (III) unter Bildung der Benzothiadiazole (II).

Poly(sulphur nitride): an assessment of the synthesis from trichlorocyclotri(azathiene) and trimethylsilyl azide

An improved synthesis and purification, and some properties, of powdered (SN)X are reported. Gram quantities can be prepared by reacting (NSCl)3 and Me3SiN3(molar ratio 1:7.5) in acetonitrile, followed by the liquid-SO2 extraction of impurities. The product polymers are fine black powders; surface areas (14–22 m2 g–1) were measured by the B.E.T. method. Freshly prepared and purified samples readily converted to S4N4 both photolytically and by thermal activation; a rapid solid-state conversion to S4N4 occurred at ca. 120 °C (under N2). Differential scanning calorimetry gave ΔH(conversion)=–(20 ± 1) kJ mol–1 of S4N4. Aged samples of powdered polymer were sublimed in vacuo at 110 °C to give gold-bronze conductive layers, σ(bulk)≈ 5 Ω–1 cm–1. A new mode of growth of (SN)X single crystals during high-vacuum sublimation was observed.

ChemInform Abstract: AB INITIO VALENCE BOND CALCULATIONS AND THE SPIN‐PAIRED DIRADICAL CHARACTER OF SULFUR NITRIDE DIMER (S2N2)

Chemischer InformationsdienstVolume 15, Issue 40 Physical Inorganic Chemistry ChemInform Abstract: AB INITIO VALENCE BOND CALCULATIONS AND THE SPIN-PAIRED DIRADICAL CHARACTER OF SULFUR NITRIDE DIMER (S2N2) F. L. SKREZENEK, F. L. SKREZENEKSearch for more papers by this authorR. D. HARCOURT, R. D. HARCOURTSearch for more papers by this author F. L. SKREZENEK, F. L. SKREZENEKSearch for more papers by this authorR. D. HARCOURT, R. D. HARCOURTSearch for more papers by this author First published: October 2, 1984 https://doi.org/10.1002/chin.198440001Read the full textAboutPDF 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 onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume15, Issue40October 2, 1984 RelatedInformation

Sulphur Nitrides in Organic Chemistry

Abstract The present review describes the reactions of sulfur nitrides with a variety of organic compounds.

The electron paramagnetic resonance spectrum of S3N2+

The epr spectrum of a persistent sulfur nitride radical cation, common to the oxidation of many sulphur–nitrogen compounds, has been obtained from materials highly enriched in both 15N and 33S. Analyses of solution and frozen spectra show that the carrier is planar S3N2+ and that its ground state is 2A2 in C2v. symmetry.

ChemInform Abstract: PREPARATION AND X‐RAY CRYSTAL STRUCTURE OF (S3N2)2NASF6, CONTAINING THE BIS(THIODITHIAZYL)AMINYLIUM(1+) CATION

AbstractDie in flüssigem SO, bei 0 °C gemäß Reaktion A als gelber Festkörper erhaltene Titelverbindung kristallisiert in der monoklinen Raumgruppe C2/ c mit Z=16.

Anisotropy of interchain interaction in polymeric (SN) x crystals

The technique of polarized reflection microspectroscopy was used to study anisotropy of polymeric sulfur nitride (SN) x in plasma edge region. The spectra taken from different faces of single crystals indicate the presence of strong anisotropy of interchain interaction due to orientation of the π-electron orbitals and suggest two-dimensional metallic behavior of the π-electron system in (SN) x .

Preparation and X-ray crystal structure of (S3N2)2NAsF6, containing the bis(thiodithiazyl)aminylium(1+) cation

Crystalline (S3N2)2NAsF6 was prepared in ca. 60% yield from a 1 : 1 mixture of S4N4 and S2NAsF6 in liquid SO2 at 0 °C, and its structure determined by X-ray crystallography. The compound crystallises in the monoclinic space group C2/c with unit-cell dimensions a= 17.343(6), b= 17.103(6), c= 16.737(9)A, β= 98.29(3)°, and Z= 16. The structure was solved by direct methods and refined by least-squares techniques to a final R of 0.11 for 2 308 observed reflections. (S3N2)2NAsF6 is essentially ionic with sulphur–fluorine cation–anion contacts. The (S3N2)2N+ cation is the first example of a monobridged bicyclic sulphur–nitrogen cation, and consists of two thiodithiazyl (S3N2) groups connected together by a bridging nitrogen atom attached to a sulphur atom of each S3N2 ring. The S3N2 rings are cis with respect to the bridging nitrogen atom, and are essentially eclipsed with respect to the SNS bridge. (S3N2)2NAsF6 reacts with CsN3 in liquid SO2 solution yielding impure poly(sulphur nitride) and CsAsF6. Solutions of (S3N2)2NAsF6 in liquid SO2 slowly disproportionate to S4N2AsF6 and S4N4. The i.r. spectrum of (S3N2)2NAsF6 is also reported.

Ion-selective behaviour of a polymeric sulphur nitride electrode for the measurement of silver(I)

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ChemInform Abstract: THE ELECTRONIC STRUCTURES OF PHOSPHORUS SULFIDE (P4S4) AND ARSENIC SULFIDE (AS4S4), AND A COMPARISON WITH SULFUR NITRIDE (N4S4)

Chemischer InformationsdienstVolume 14, Issue 52 Physical Inorganic Chemistry ChemInform Abstract: THE ELECTRONIC STRUCTURES OF PHOSPHORUS SULFIDE (P4S4) AND ARSENIC SULFIDE (AS4S4), AND A COMPARISON WITH SULFUR NITRIDE (N4S4) M. H. PALMER, M. H. PALMERSearch for more papers by this authorR. H. FINDLAY, R. H. FINDLAYSearch for more papers by this author M. H. PALMER, M. H. PALMERSearch for more papers by this authorR. H. FINDLAY, R. H. FINDLAYSearch for more papers by this author First published: December 27, 1983 https://doi.org/10.1002/chin.198352003Read the full textAboutPDF 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 onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume14, Issue52December 27, 1983 RelatedInformation

The electronic structures of phosphorus sulphide (P 4S 4) and arsenic sulphide (As 4S 4), and a comparison with sulphur nitride (N 4 S 4)

Ab initio calculations of the electronic structure of P 4S 4 and As 4S 4 have been made, and the results compared with those for N 4 S 4. Configuration interaction has been used to determine the first few doublet states of each symmetry, in order to predict the low energy end of the photoelectron spectrum.

Blue electroluminescence in forward-biased ZnS diodes with (SN)x electrodes

Sets of Schottky (MS) and metal-insulator-semiconductor (MIS) diodes have been fabricated on semiconducting ZnS dice using either gold or polymeric sulphur nitride (SN)x as the barrier metal electrode. The semiconducting material was prepared by heating dice, cut from ZnS produced by a chemical vapour deposition process, in molten zinc containing gallium and aluminium. (SN)x is a covalent polymer, which was deposited as a thin film, approximately 1 mu m thick, with a resistivity approximately 10-2 Omega cm. It has a higher electronegativity than gold and devices with (SN)x electrodes had measured photoelectric barrier heights approximately 0.75 eV greater than those in the corresponding devices with gold electrodes. In forward bias, devices with barriers exceeding Eg/2 emitted blue (HE) electroluminescence from the vicinity of the barrier. Self-activated (SA) emission, at slightly lower photon energies, was also emitted from the reverse biased 'low resistance' counter-electrode. The resolution of the total electroluminescence emission into its two spectral components is described, and the quantum and luminous efficiency of the blue (2.815 eV) HE emission is shown to increase steeply as the electronegativity of the metal electrode is increased.

Electrochemical synthesis of poly(sulphur nitride)

Poly(sulphur nitride) can be synthesized electrochemically, in liquid sulphur dioxide, from cyclopenta-azathienium chloride, S5N5Cl(prepared by a new method from S5N5FeCl4 and CsF).