1,3-Diphenyltriazene

1,3-Diphenyltriazene is the organic compound with the formula PhN=N-N(H)Ph (Ph = C6H5). It is a prototypical triazene, i.e. a compound with the functional group RN=N-NR2. It is a pale yellow solid, prepared by the reaction of phenyldiazonium salts with aniline.[3] It is a planar molecule. The N-N distances are 1.287 and 1.337 Å.[4]

1,3-Diphenyltriazene
Names
Preferred IUPAC name
(1E)-1,3-Diphenyl-1-triazene
Other names
Diazoaminobenzene
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard100.004.764 Edit this at Wikidata
EC Number
  • 205-240-1
UNII
  • InChI=1S/C12H11N3/c1-3-7-11(8-4-1)13-15-14-12-9-5-2-6-10-12/h1-10H,(H,13,14)
    Key: ALIFPGGMJDWMJH-UHFFFAOYSA-N
  • C1=CC=C(C=C1)NN=NC2=CC=CC=C2
Properties
C12H11N3
Molar mass197.241 g·mol−1
AppearancePale yellow solid
Density1.29 g/cm3
Melting point95–96[1] °C (203–205 °F; 368–369 K)
Boiling point180 °C (356 °F; 453 K) decomposes[2]
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H302, H312, H315, H319, H332, H335
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

References