Browsing by Subject "Spectrophotometry, Ultraviolet"
Now showing items 1-7 of 7
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Model investigations for vanadium-protein interactions: Vanadium(III) compounds with dipeptides and their oxovanadium(IV) analogues
(2002)The reaction of VCl3 with 1,10-phenanthroline and a series of dipeptides (H2dip), having aliphatic as well as aromatic side chains, in methyl alcohol and in the presence of triethylamine affords vanadium(III) compounds of ...
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Article
Modulating unimolecular charge transfer by exciting bridge vibrations
(2009)(Figure Presented) Ultrafast UV-vibrational spectroscopy was used to investigate how vibrational excitation of the bridge changes photoinduced electron transfer between donor (dimethylaniline) and acceptor (anthracene) ...
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Article
Molecular factors affecting the complex formation between deferiprone (L1) and Cu(II): Possible implications on efficacy and toxicity
(2001)Deferiprone (1,2-dimethyl-3-hydroxypyrid-4-one, L1, CAS 30652-11-0) is a new chelating drug used worldwide for the treatment of iron overloading conditions. Spectrophotometric and potentiometric measurements were carried ...
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Article
Solid state and aqueous solution characterization of rectangular tetranuclear VIV/V-p-semiquinonate/hydroquinonate complexes exhibiting a proton induced electron transfer
(2008)Reaction of the non-innocent dinucleating ligand 2,5-bis[N,N- bis(carboxymethyl) arninomethyl]hydroquinone (H6bicah) with VO 2+ and VO43- salts in water in the pH range 2 to 4.5 provides a series of novel tetranuclear VIV ...
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Synthesis and aqueous solution properties of multinuclear oxo-bridged vanadium(IV/V) complexes
(2000)Reaction of the multifunctional phenolic ligands 2,5-bis[N,N-bis(carboxymethyl)aminomethyl]hydroquinone (H6cahq), 2,2'-bis[N,N-bis(carboxymethyl)aminomethyl]-4,4'-isopropylidenedi phenol (H6capd), 2,2',2''-tris[N,N-bis(c ...
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Article
Ultraviolet Absorbance and Circular Dichroism of Pf1 Virus: Nucleotide/Subunit Ratio of Unity, Hyperchromic Tyrosines and DNA Bases, and High Helicity in the Subunits
(1994)Data have been obtained for the Pfl virion that establish its stoichiometry and conformational features of its DNA and its protein. The absorbance spectrum of the dissociated virus under alkaline denaturing conditions is ...
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Article
UV resonance Raman spectroscopy of TTR(105-115): Determination of the pKa of tyrosine
(2009)The 11-residue peptide fragment from transthyretin (TTR(105-115)) has been investigated using UV resonance Raman spectroscopy. Excitation at 239.5 nm reveals selective enhancement of scattering from two Tyr residues. The ...