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CAS No 2218-94-2 , 1,4-diphenyl-3-(phenylammonio)-1H-1,2,4-triazolium

  • Name: 1,4-diphenyl-3-(phenylammonio)-1H-1,2,4-triazolium
  • Synonyms: 4,5-DIHYDRO-2,4-DIPHENYL-5-PHENYLIMINO-1H-1,2,4-TRIAZOLIUM INNER SALT;1,4-DIPHENYL-ENDOANILINO-DIHYDROTRIAZOLE;1,4-diphenyl-3-(phenylammonio)-1H-1,2,4-triazolium;4,5-DIHYDRO-2,4-DIPHENYL-5-(PHENYLIMINO)-1H-1,2,4-TRIAZOLIUM HYDROXIDE,INNER SALT;1,4-DIPHENYL-3,5-ENDOANILO-1,2,4-TRIAZOLINE;NITRON;1,4-DIPHENYL-3-(PHENYLAMINO)-1H-1,2,4-TRIAZOLIUM INNER SALT;TIMTEC-BB SBB008852;1,4-DIPHENYL-3-PHENYLAMINO-1,2,4-TRIAZOLIUM HYDROXIDE INNER SALT;
  • CAS Registry Number:
  • Melting Point: 189-190 °C (dec.)(lit.)
  • Density: 0.93g/cm3
  • Refractive index: 1.367
  • Safety Statements: 24/25
  • EINECS: 218-724-2
  • Molecular Weight: 312.37
  • InChI: InChI=1/C20H16N4/c1-4-10-17(11-5-1)21-20-22-24(19-14-8-3-9-15-19)16-23(20)18-12-6-2-7-13-18/h1-16H
  • Molecular Formula: C20H16N4
  • Molecular Structure:CAS No:2218-94-2 1,4-diphenyl-3-(phenylammonio)-1H-1,2,4-triazolium

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References of 1,4-diphenyl-3-(phenylammonio)-1H-1,2,4-triazolium
Title: Nitron
CAS Registry Number: 2218-94-2
CAS Name: 1,4-Diphenyl-3-(phenylamino)-1H-1,2,4-triazolium inner salt
Molecular Formula: C20H16N4
Molecular Weight: 312.37
Percent Composition: C 76.90%, H 5.16%, N 17.94%
Literature References: Orginally represented as 3,5,6-triphenyl-2,3,5,6-tetraazabicyclo[2.1.1]hex-1-ene. Prepn: DE 159692 (1904 to E. Merck); M. Busch, Ber. 38, 856 (1905). Corrected structure determn as meso-ionic compound: W. Baker, W. D. Ollis, Q. Rev. Chem. Soc. 11, 15 (1957); G. A. Olah, J. Inorg. Nucl. Chem. 16, 225 (1961). Mass spectrum: W. D. Ollis, C. A. Ramsden, J. Chem. Soc. Perkin Trans. 1 1974, 645. NMR study: W. Bocian et al., Magn. Reson. Chem. 33, 134 (1995). Use in determn of metals: N. Gantchev, A. Dimitrova, Mikrochim. Acta 1971, 476; T. J. Koralewski, G. A. Parker, Anal. Chim. Acta 113, 389 (1980); H. Chen et al. Acta Chim. Sin. 1989, 412. In determn of nitrate: A. Hulanicki, M. Maj, Talanta 22, 767 (1975); A. Hioki et al. Anal. Sci. 6, 757 (1990). Chemical sensor of stratospheric nitric acid: K. Meadows, V. R. Morris, Proc. NOBCChE 25, 1 (1998).
Properties: Intensely yellow leaflets from alcohol, solvated needles from chloroform, dec ~189°. Insol in nitrates, water. Sol in alcohol, benzene, slightly sol acetone, chloroform, ethyl acetate; sparingly sol in ether. The alc soln undergoes partial decompn, indicated by a red color. Dipole moment in benzene: 7.2. pKa 10.34 ± 0.02
pKa: pKa 10.34 ± 0.02
Use: Determination of boron, nitrate, perchlorate, rhenium, tungsten, molybdenum.