The synthesis of tetraphenylporphyrin erbium(III) acetylacetonate (acac) complexes is realized and their properties studied at the nanoscale when adsorbed on a semi-insulating CaF2/Si(100) surface. Our findings reveal that ErTPP-(acac) molecules can adsorb in two main on-site conformations. Following precisely located dI/dV measurements various specific positions [phenyls, pyrroles, Er-(acac)],...

Substitution of an acetylacetonate by a carboxylate in the neutral (acac)2Cu(II) was achieved by its reaction with triand dichloroacetic acid in benzene (HCO2R where R = CCI3 or CHCI2; Hacac = acetylacetone) which led to the formation of the mixed chelate square planar complex (acac)Cu(OCOR). The later complex, R = CCI3, reacted with heterocyclic bases to produce the square pyramidal complexes ...

This paper reports an experimental study on the synthesis and electrochemical properties of InVO4 nanotube arrays fabricated by capillary-enforced sol-filling in templates in combination with solvent-evaporation induced deposition. InVO4 sol was synthesized using the sol–gel route from vanadium oxoisopropoxide and indium nitrate with ethanol as the solvent. Nanotube arrays of InVO4 were prepare...

We describe the first use of Bis-tris propane {2,2'-(propane-1,3-diyldiimino)bis[2-(hydroxymethyl)propane-1,3-diol], H(6)L}, in nickel and cobalt chemistry and report the synthesis, structure and magnetic properties of [Ni(4)(H(4)L)(H(3)L)(acac)(2)](+) (1) and [Co(II)(3)Co(III)(2)(H(2)L)(2)(acac)(3)(MeOH)](+) (2).

Six novel copper(ii) complexes of [CuCl]ClO4 (), [Cu(acac)]PF6 (), [CuCl]2(PF6)2 (), [CuCl]2(PF6)2 (), [Cu(acac)]PF6 () and [Cu(acac)]PF6 (), ( = 1-naphthyl-N,N-[bis(2-pyridyl)methyl]amine, = R/S-1-naphthyl-N,N-[bis(2-pyridyl)methyl]ethanamine, acac = diacetone) were synthesized to serve as artificial nucleases. All complexes were structurally characterized using X-ray crystallography. The crys...

Volatile trends are established for a series of M(b-diketonate)n complexes, where M = Cu (n = 2); Al, Sc, Cr, Fe, Co, Ga (n = 3); Zr (n = 4) and b-diketonate = acetylacetonate (acac), trifluoroacetylacetonate (tfac), hexafluoroacetylacetonate (hfac) and 2,2,6,6-tetramethyl-3,5-heptanedionate (tmhd). Sublimation enthalpies (DHsub) were calculated from thermogravimetric analysis (TGA) data, which...

A novel series of mixed-valent, heteroleptic transition metal diketonates that can be utilized as prospective single-source precursors for the low-temperature preparation of oxide materials are reported. The first mixed-valent iron β-diketonates with different FeIII/FeII ratios have been synthesized by applying the mixed-ligand approach. Based on nearly quantitative reaction yields and analysis...

Werndrup, Pia. 2005. Synthesis, Structure Determination, and Sol-Gel Processing of Heterometallic Heteroleptic Alkoxide Complexes of Late Transition Metals. Doctor’s dissertation. ISSN 1652-6880, ISBN 91-576-7026-9. The thesis describes synthesis of single-source precursors (SSP) for sol-gel preparation of thin films and nanocomposites. The structures of the SSPs were determined by singlecrysta...

Background: Olive mill wastewater (OMW) is characterized by its high organic content and refractory compounds. The aim of this study was to evaluate compare the efficiency UV/O3 UV/ acetylacetone (UV/AcAc) processes for treatment pretreated OMW coagulation/microfiltration (C&M) process. Methods: In study, a laboratory-scale UV plug flow reactor with ancillary equipment fabricated. experimen...

We have developed a new class of MRI contrast agents that contain VO-chelated organic ligands, namely VO(acac)2. As contrast agents, vanadyl (VO ) chelates provided excellent T1 and T2 * contrasts compared to that of GdDTPA in high-resolution MR images of rodent tumors. This class of contrast agents is taken up by cancer cells that are highly glycolytic. In vivo MRI experiments demonstrated pre...