Solid state NMR measurements are carried out for polymorph and inclusion complexes of 4,5-bis(4-methoxyphenyl)-2-(3-nitrophenyl)-1H-imidazole. Observed C-13 and N-15 chemical shifts are characteristic of each polymorph A, B, C and D. In addition, N-15 chemical shift was a good index for understanding hydrogen bond. VT measurements revealed that B transforms to C between 93 and 113 degrees C. From PSTMAS and H-1 solid echo measurements for AcOET inclusion complex, host molecules have almost same structure as B and guest molecules have the highest mobility of all inclusion complexes.