![]() The Am(III) complexes exhibited higher complexation ability than those of Ln(III), which was consistent with the extraction results. The stability constants of the C4-POPhen/Am(III) and C4-POPhen/Ln(III) complexes in CH3OH with perchlorate and nitrate were determined by absorption spectroscopy. NMR titration results demonstrated that only 1:1 complex of C4-POPhen with Ln(NO3)3 was formed in CH3OH system, while two complexes (1:1 and 1:2) were found when using Ln(ClO4)3 as the metal salts instead of Ln(NO3)3. The 1:2 metal/ligand complex was the predominant species in extracted organic phase by slope analysis method. Selective extraction of Am(III) over Eu(III) from highly acidic HNO3 solution (up to 3.0 M) with good selectivity and fast extraction rate was achieved by using C4-POPhen ligand. The extraction and complexation of trivalent Am(III) and lanthanide(III) with a new phenanthroline-derived phosphonate ligand, tetrabutyl-(1,10-phenanthrolin-2,9-diyl)phosphonate (C4-POPhen), was investigated by solvent extraction, absorption spectroscopy, NMR titration, luminescence spectroscopy, and theoretical computations. The similarity in UV-Vis absorption of the extracted complex of Am(III) with LII and 3+ suggests that the Am(III) ion is also coordinated by three tridentate LII ligands existing as 3+ in the organic phase of solvent extraction. In addition, to provide parallels to solvent exaction, the extracted Am(III) complex with N,N′-dimethyl-N,N′-dioctyl-3-oxa-glutaramide (DMDOOGA, LII) is also prepared and studied using spectrophotometry. The deconvoluted UV-Vis absorption spectrum of 3+ in aqueous solution is nearly identical to the diffusion reflectance spectrum of AmLI3(ClO4)3 in the solid state, indicating that the coordination geometry of the complexes is nearly the same. The crystal structure of AmLI3(ClO4)3 shows that Am(III) is coordinated by nine oxygen atoms from three LI ligands. ![]() Single crystals of AmLI3(ClO4)3 have been grown from a HClO4 solution containing Am3+ and LI. Three successive complex species, 3+, 3+, and 3+, have been identified and their stability constants are calculated to be 3.71 ± 0.012, 5.95 ± 0.021, and 6.93 ± 0.034 respectively, from the absorption spectra collected from the titrations of Am(III) with LI at 25 ☌ in 1 M NaNO3. If only she used this for her captain.Complexation of Am(III) with tetramethyl-3-oxa-glutaramide (TMOGA, LI) is studied by spectrophotometric titrations and single crystal X-ray diffraction. Indicated by the arrows in her corpse, it appears Trogra met her fate when she was ambushed while attempting to escape her sorrow.ĭon't forget to loot the nearby Brazier of Awakening for a useful resurrection item for those who don't have any resurrection spells. Now, the original Captain Ironbeard is between lives as an undead buccaneer and can be found in a cave nearby, the entrance of which is located at 37.2, 75.9. The text continues that the original captain was unsuccessfully attempted to be revived, and Trogra, grief-stricken and feeling honorless, abandoned her ship and crew. ![]() Comment by AlskaFound by the shore at 37.8, 80.8, in Tanaan Jungle (a little west/southwest of the Zorammarsh delta that is directly south of Hellfire Citadel).īased on the text of the Sea-kissed Scroll lying next to her, she appears to have once been part of a crew led by Captain Ironbeard and was regretfully involved in a mutiny led by the ship's first mate known as Torglork, who later took up the mantle as the new Captain Ironbeard (the one you meet in Nagrand) once the original was killed.
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