The design of a large-aperture and wide-band optical lens for camera is presented. By utilizing the atmospheric window of infrared light, clear images can be achieved in the dark or poor visibility co
The compound 1,6∶3,4-Bis(1,2-xylyiene)tetrahydro-imidazo[4,5-d]imidazole-2,5(1H,3H)-dione(C20H18N4O2, Mr=346.38) has been synthesized for the first time. Compl
The compound 1,6∶3,4-Bis(4,5-dimethyl)tetrahydro-3a,6adiphenylimidazo[4,5-d]imidazole-2,5(1H,3H)-dione (C40H40Cl0.33N4O10, Mr=748.58) has been synthesized for