Mol-ecules of the title compound, C14H18N2O3 [systematic name: 5-allyl-5-(hex-3-yn-2-yl)-1-methylpyrimidine-2,4,6(1H,3H,5H)-trione in the (RbSh )/(SbRh ) racemic form], are connected by mutual N-H⋯O=C hydrogen bonds in which the carbonyl group at the 2-position of the pyrimidine-trione ring is employed. These inter-actions result in an inversion dimer which displays a central R 2 (2)(8) ring mo...

By connecting tercarbazole (3Cz) and triphenyltriazine (TRz) units with a diphenyl ether group, we designed synthesized new donor-spacer-acceptor structure molecule 9′-(4-(4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenoxy) phenyl)-9′H-9,3′:6′,9″-tercarbazole (3Cz-o-TRz) as the multifunctional component of exciplex emitters. As expected, intermolecular charge-transfer transition is dominant for 3Cz-o-T...

Laser-induced fluorescence excitation and dispersed fluorescence spectra of the first nlr* transition of jet-cooled 4and Smethylpyrimidine (4-mp and 5-mp) have been recorded and analyzed. In 5-mp, methyl substitution preserves many of the spectroscopic signatures of the unsubstituted pyrimidine molecule. Dispersed fluorescence spectra are used to assign most of the major features in the first 1...

Laser-induced fluorescence excitation and dispersed fluorescence spectra of the first n-?r* transition of jet-cooled 2-methylpyrimidine have been recorded and analyzed. This work extends our earlier study of the spectroscopic and photophysical effects of methyl substitution in 4and 5methylpyrimidine. An unusual Fermi resonance involving the 6~2: progression forms the focus of the present study....

Receptor binding, behavioral, and electrophysiological profiles of 2-[N-(2-methylthio-4-isopropylphenyl)-N-ethylamino]-4-[4-(3-flu orophe nyl)-1,2,3,6-tetrahydropyridin-1-yl)-6-methylpyrimidine (CRA1000) and 2-[N-(2-bromo-4-isopropylphenyl)-N-ethylamino]-4-[4-(3-fluoropheny l)- 1,2,3,6-tetrahydropyridin-1-yl)-6-methylpyrimidine (CRA1001), putative novel and selective antagonists for corticotrop...

An enzyme inhibiton method for the determination of serum levels of DDMP is described. This has proved to be a simple, practical, and reliable method for the clinical monitoring of patients.