2-(4-Nitro phenyl)-4,5,diphenyl-1-H Imidazole: (4d)

M.P: 199˚C - 201˚C. FTIR (KBr, cm⁻¹): 3402, 2928, 1598, 1519, 1346, 856;

¹H NMR (Bruker) (400 MHz, CDCl₃/DMSO-d₆):

δ = 12.81 (s, 1H), 8.01 - 7.42 (m, 14H); ¹³C NMR (100 MHz, CDCl₃/DMSO-d₆):

δ = 148.9, 143.7, 131.6, 130.6, 129.7, 128.4, 127.8, 127.4, 126.9, 126.1,

125.4, 124.3, 122.2, 118.5; NCMS (m/z): 342.2 (M⁺ + 1).

2-(4-Methyl phenyl)-4,5,diphenyl-1-H Imidazole: (4e)

M.P: 184˚C - 186˚C. FTIR (KBr, cm⁻¹): 3450 (N-H), 1600 (C=C), 1585 (C=N).

¹HNMR (Bruker) (400 MHz, CDCl₃/DMSO-d₆): 2.30 (s, CH₃), 7.10 - 7.60 (m, 10H),

7.70 (d, 2H, J = 10 Hz), 7.30 (d, 2H, J = 10 Hz).

¹³CNMR (100 MHz, CDCl₃/DMSO-d₆), 55.7, 113.4, 122.6, 126.3, 126.6, 128.0, 128.3, 133.4, 145.7, 159.6 ppm: NCMS (m/z):311 (M + 1)