https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:15319 3(DAMT)₂(DAMTH)₂cl₈] have been prepared and identified by elemental analyses, infrared, Raman, ¹H and ¹³C NMR spectroscopy, and a single crystal X-ray diffraction. The protonation equilibria of the ligand have been studied by pH-potentiometry, with pK₁ 13.29 and pK₂ 5.40 determined. The free ligand consists of triazole cations (DAMTH) and chloride counter ions. The neutral cadmium compound is a complex of the cationic ligand in which 3Cd's are coordinated by two unidentate cation forms of the ligands (DAMTH), two ambidentate neutral forms of the ligand (DAMT), and eight chlorides. Cadmium ions have slightly distorted octahedral geometry.]]> Sat 24 Mar 2018 08:26:36 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:10776 12. In the presence of metal(II) ions they undergo concomitant deprotonation and complexation to form [M(L-2H)] compounds. Formation constants have been determined for Cu(II), Ni(II), and Zn(II) complexes of the suite of ligands. Determined values for the two observed steps of log β ML-2H and log β ML-3H (where additional alcohol or coordinated water deprotonation occurs) are approximately −10 and −20, respectively. As pKa values of the diamide cannot be determined independently, absolute log KML-2H values for the di-deprotonated complexes cannot be definitively assigned, although estimates are made using predicted pKa values for the diamide. The circular dichroism spectra of optically active complexes were determined and are discussed.]]> Sat 24 Mar 2018 08:07:05 AEDT ]]>