The crystal of the title compound (C21H26N3O3PS, Mr=431.48) belongs to the monoclinic system space group with P21/n, a=13.253(3), b=7.979(2), c=21.475(4), β=97
Two novel heterocyclic diamine monomers: 1,2-dihydro-2-(4-aminophenyl)-4-[4-(4-amin- ophenoxy)phenyl](2H)phthalazin-1-one and 1,2-dihydro-2-(4-aminophenyl)-4-[4
A zeolite designated as ZK-4 was synthesized hydrothermally in the system (TMA)2O-Na2O-Al2O3-SiO2-H2O at 80-100 ℃ with tetramethylammonium hydroxide as an orga
The rate equations for the intracavity-frequency-doubled quasi-three-level lasers are developed. By normalizing the related parameters, it is shown that the gen
Excellent resolution of racemic 2-phenyl-1,1-cyclopropanedicarbonitrile and its nine analogues was accomplished using 100-5CHI-TBB chiral stationary phase under