The Sun and Sunspots, 1820-1920. (Plates 13, 14, 15, 16.)

Synthesis and characterization of 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6H-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7H)-one

Synthesis and characterization of 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6H-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7H)-oneABSTRACTNew 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6H-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7H)-one (2a) was synthesized in good yield by the Petrenko–Kritchenko reaction of 2, 2'-((3-hydroxyp...

synthesis and characterization of 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6h-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7h)-one

synthesis and characterization of 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6h-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7h)-oneabstractnew 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6h-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7h)-one (2a) was synthesized in good yield by the petrenko–kritchenko reaction of 2, 2'-((3-hydroxyp...

Nickel and cobalt complexes of 15 , 15 - disubstituted 1 , 4 , 7 , 10 , 13 - pentaazacyclohexadecane - 14 , 16 - dione ligands

The synthesis of the novel Co(III)(15,15-difluoro-1,4,7,10,13-pentaazacyclohexadecane-14,16dione) acetate complex from different cobalt sources is described. Furthermore, the corresponding nickel complex and its new analog with the 15-fluoro-15-methyl-1,4,7,10,13-pentaazacyclohexadecane-14,16dione ligand were studied in great detail including cyclic voltammetry and single crystal analyses of a ...

Fractionation of 14 N 15 N 16 O and 15 N 14 N 16 O During Photolysis at 213 nm

Motivated by Yung and Miller’s suggestion [1997] that N2O is isotopically fractionated during UV photolysis in the stratosphere, we have studied the photolysis rates of the NNO and NNO structural isotopomers. In this study, we follow the concentrations of these compounds with FTIR spectroscopy during photolysis at 213 nm. Our results show that, as Yung and Miller predicted, the photolysis rate ...

Regenerable sorbents for mercury capture in 10 simulated coal combustion flue gas 11 12 13 14 15 16 17 18