Phenylalkanes with carbon numbers between 16 and 19,characterized by the main carbon-18,have been identified in the mod-em sediments collected from gas hydrate
Steiner connected dominating set (SCDS) is a generalization of the famous connected dominating set problem,where only a specified set of required vertices has t
The electronic structures of QHS and DQHS were completely optimized and calculated by B3LYP density functional theory at the 6-31g* level.The relationship betwe
Safranine, a cationic dye, was removed from synthetic wastewater by ion flotation.Over 98% of safranine was removed from the solution in 10 min. A stoichiometri
The crystal of Sr6YbSc(BO3)6 has been grown by the top-seeded solution growth (TSSG) method from a Li6B4O9 flux.The spectroscopic characterizations of the cryst
The title compound [Cu(dafone)2(DMF)2](2ClO4 1 (dafone = 4,5-diazafluoren- 9-one, dmf = N,N(A)-dimethyl formamide) was synthesized by the reaction of Cu(ClO4 )2
The nucleophilic addition of Ti(Ⅳ) enolate derived from methyl aryl ketones to α, β-unsaturated compounds was found to be highly selective to give 1, 2 addit