2,2'-Biimidazole Chemical Properties

Melting point:

>350°C

Boiling point:

455.5±28.0 °C(Predicted)

Density 

1.371±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

form 

powder to crystal

pka

pK1: 5.01(+1) (25°C,μ= 0.3)

color 

Light yellow to Brown to Dark green

λmax

274nm(HCl aq.)(lit.)

InChI

InChI=1S/C6H6N4/c1-2-8-5(7-1)6-9-3-4-10-6/h1-4H,(H,7,8)(H,9,10)

InChIKey

AZUHIVLOSAPWDM-UHFFFAOYSA-N

SMILES

C1(C2NC=CN=2)NC=CN=1

Safety Information

Hazard Codes 

Xi

HS Code 

2933.29.4300

HazardClass 

IRRITANT

2,2'-Biimidazole Usage And Synthesis

Uses

1H,1''H-2,2''-Biimidazole is used in the preparation of complexes that exhibits photoluminescence and optical properties. Also used in the preparation of bismuth biimidazoles as semi-conductors.

Synthesis

120 ml of distilled water was added to 1,092 g (14.2 mol, 4.0 eq.) of ammonium acetate at 40 ℃, 500 g of 20 wt percent aqueous glyoxal (3.45 mol) was then slowly added dropwise to the resulting slurry for three hours while stirring vigorously. Immediately after the addition was finished, the reaction mixture was neutralized with distilled water to adjust the pH to 5-7. The produced brown-colored solid was filtered and washed alternately with 500 ml of acetone and 500 ml of distilled water several times to obtain 82.0 g (53.2 percent yield) of 2,2'-Biimidazole.

2,2'-Biimidazole(492-98-8)Related Product Information

• 2,2'-BIS(4,5-DIMETHYLIMIDAZOLE)
• 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
• 2,2',4-Tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4',5'-diphenyl-1,1'-biimidazole
• -biimidazole,2,2'-Bis(2-dichlorophenyl)-4,4'5,5'-tetraphenyl-1,2'-biimidazole
• 2,2'-BIBENZIMIDAZOLE
• 2,2'-BIIMIDAZOLE
• 1-METHYL-1H,1'H-[2,2']BIIMIDAZOLYL
• 2-(1-METHYLIMIDAZOL-2-YL)-1H-BENZOIMIDAZOLE-5-CARBOXYLIC ACID
• 1,1'-DIMETHYL-1H,1'H-[2,2']BIIMIDAZOLYL
• 1,1'-DIETHYL-1H,1'H-[2,2']BIIMIDAZOLYL
• 2,2'-BI-(IMIDAZOL-1-YL-ACETIC ACID)
• BI-(1,4,5-TRIMETHYL-IMIDAZOLE)
• 4,5-DIBROMO-2-(4,5-DIBROMOIMIDAZOL-2-YL)IMIDAZOLE
• 6,6'-DICHLORO-4,4'-DIMETHYL-1H,1'H-[2,2']BIBENZOIMIDAZOLYL
• 6-(1'-METHYL-[2,2']BIIMIDAZOLYL-1-YL)HEXYLAMINE HCL
• 4,4'-DIETHYL-1H,1'H-[2,2']BIIMIDAZOLYL
• (1'-METHYL-1'H-[2,2']BIIMIDAZOLYL-1-YL)ACETIC ACID
• 2,2'-BI-[N-(2-AMINO-ETHYL)IMIDAZOLE] 4HCL