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Dinitrogen difluoride

Names IUPAC namecis- or trans-dinitrogen difluorideOther names cis- or trans-difluorodiazeneIdentifiers CAS Number13812-43-6 (cis)13776-62-0 (trans)3D model (JSmol)(cis): Interactive image(trans): Interactive imageChemSpider10326121 (cis)4516471 (trans)PubChemCID5364290 (cis)5462838 (trans)InChI(cis): InChI=1S/F2N2/c1-3-4-2/b4-3-Key: DUQAODNTUBJRGF-ONEGZZNKBY(trans): InChI=1/F2N2/c1-3-4-2/b4-3+Key: DUQAODNTUBJRGF-ONEGZZNKBYInChI=1S/F2N2/c1-3-4-2/b4-3+Key: DUQAODNTUBJRGF-ARJAWSKDSA-NSMILES(cis): F\N=N\F(trans): F\N=N/FProperties Chemical formulaFN=NF Molar mass66.011 g·mol Appearance Colorless gas Density2.698 g/L Melting pointcis: less than −195 °C (−319.0 °F; 78.1 K) trans: −172 °C (−278 °F) Boiling pointcis: −105.75 °C (−158.35 °F; 167.40 K) trans: −111.45 °C (−168.61 °F) Dipole momentcis: 0.16 Dtrans: 0 D Thermochemistry Std enthalpy offormation(ΔfH298)cis: 69.5 kJ/moltrans: 82.0 kJ/mol Related compounds Other anionsAzideOther cationsAmmoniumDiazonium compoundsPentazeniumTetrafluoroammoniumRelated compoundsAzo compoundsDiazeneTriazeneTetrazeneNitrogen trifluorideTetrafluorohydrazineExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Nverify ( ?)

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