| 词条 | Heptasulfur imide |
| 释义 |
| ImageFile = S7NHstructurePlanarN.png | ImageSize = | ImageAlt = Skeletal formula of heptasulfur imide | ImageFile1 = Heptasulfur imide molecule ball.png | ImageSize1 = 150 | ImageAlt1 = Ball-and-stick model of the heptasulfur imide molecule | IUPACName = | OtherNames = |Section1={{Chembox Identifiers | CASNo = 293-42-5 | PubChem = 3446506 | ChemSpiderID = 2689062 | SMILES = N1SSSSSSS1 | StdInChI = 1S/HNS7/c1-2-4-6-8-7-5-3-1/h1H | StdInChIKey = NLDXLSSPVWXKBF-UHFFFAOYSA-N }} |Section2={{Chembox Properties | Formula = HNS7 | MolarMass = | Appearance = pale yellow solid | Density = 2.01 g/cm3 | MeltingPtC = 113.5 | BoilingPt = | Solubility = }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} Heptasulfur imide is the inorganic compound with the formula S7NH. It is a pale yellow solid that is, like elemental sulfur, highly soluble in carbon disulfide. The compound, which is only of academic interest, is representative of a family of sulfur imides Sx(NH)y. Synthesis and structureIt is prepared by reaction of disulfur dichloride with ammonia,[1] although other methods have been developed.[2] Together with S7NH, the reaction also produces three isomers of S6(NH)2 and two isomers of S5(NH)3. It is an analogue of S8, with one S replaced by NH. The S2NH center is almost planar,[3] suggesting that the amine is nonbasic. References1. ^Becke-Goehring, Margot; Fluck, Ekkehard "Heptasulfur imide" Inorganic Syntheses 1966, vol. 8, 103-5. {{DOI|10.1002/9780470132395.ch26}} 2. ^Bojes, J.; Chivers, T.; Drummond, I. "Heptathiazocine(heptasulfurimide) and tetrabutylammonium tetrathionitrate" Inorganic Syntheses (1978), 18, 203-6. {{DOI|10.1002/9780470132494.ch36}} 3. ^Hecht, H. J.; Reinhardt, R.; Steudel, R.; Bradaczek, H. "Redetermination of the crystal and molecular structure of heptasulfur imide, S7NH" Zeitschrift für Anorganische und Allgemeine Chemie 1976, vol. 426, pp. 43-8. {{DOI|10.1002/zaac.19764260106}} 2 : Inorganic compounds|Sulfur compounds |
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