Alejandra Arancibia

Playa Ancha University · Departamento Disciplinario de Química

Technical advances have converted bioremediation into a large-scale ecosystem service suitable for the treatment of polluted soils worldwide; however, its application in Chile is scarce. The main hurdles that must be addressed include the capacities of such approaches for the treatment of polluted soils, the lack of knowledge about key factors affe...

Citation: Orellana, R.; Arancibia, A.; Badilla, L.; Acosta, J.; Arancibia, G.; Escar, R.; Ferrada, G.; Seeger, M. Ecophysiological Features Shape the Distribution of Prophages and CRISPR in Sulfate Reducing Prokaryotes. Microorganisms 2021, 9, 931. https://doi.org/10.3390/ microorganisms9050931 Academic Editor: Hanna M. Oksanen

Crystal and molecular structure and the thermal properties of (N,N-dibencyl)-4-nitrophenylsulfenamide, (C6H5CH 2)2NSC6H4-4-NO2, is herein presented. The structure is a divalent sulfur compound that crystallized in the monoclinic system, space group P21/c with a=9.274(2), b=6.013(1), c=32.147(9) Å, β=95.55(2)° and Dx=1.305 g cm -3 with Z=4. The plan...

The chelate ligands 11-R-dipyrido[3,2-a:2′,3′-c]phenazine, dppz-R (R = NH2, CH3, H, COOH, NO2) and the Re(dppz-R)(CO)3Cl (R = NH2, COOH, NO2) complexes were synthesized and characterized by conventional techniques. The influence of the donor and acceptor properties of the R substituents on the ligand properties were studied by spectroscopic techniq...

The reaction of Cp(dppe)FeI with the ligands 2,2′- and 4,4′-dithiobispyridine (S2(Py)2) give the mononuclear or binuclear complexes of the type [Cp(dppe)Fe-S2(Py)2]PF6, [Cp(dppe)FeSPy]PF6 or [{Cp(dppe)Fe}2-μ-SPy](PF6)2 depending on the reaction condition. Reaction of Cp(dppe)FeI with dithiobispyridines in presence of TlPF6 as halide abstractor and...

A general method for the synthesis of Ruthenium(ll) complexes of the type [(HOOCdppz)2RuX2] and [(HOOC-dppz)RuL2](PF6)2 (X = CI or SCN-, L = 2,2'-dipyridine or 4,4'dimethyl-2,2'-dipyridine and HOOC-dppz = 11-carboxy-dipyrido(3,2-a:2',3'-c)phenazine), is reported. The complexes were characterized by conventional technics as UV-Visible, IR and 1H-NMR...

Reaction between the π-accepting tetracyanoethene (TCNE) or tetracyano-p-quinodimethane (TCNQ) ligands and the π-electron-rich organometallic species Cp(dppe)Fe+ results in the formation of the complexes [{Cp(dppe)Fe}n{ηn-TCNX}](PF6)n (n=1, 2 and 4). Infrared spectroscopy, magnetic moment measurements, electron-spin resonance (ESR) and cyclic volta...

The treatment of - and -cyclodextrins with the half-sandwich complexes of iron afford the inclusion compounds CpFe(L2)XCD ( and ) (X = Cl, I; L = CO; L2 = dppe, dppe = (Ph)2P(CH2)2P(Ph)2), [CpFe(L2)L-]PF6CD ( and ) L- neutral donor ligands and[(Cp(dppe)Fe)2--CN]PF62CD ( and ). The inclusion compounds [Cp(dppe)Fe-NCCH3]PF6-CD and [Cp(dppe)Fe-(1-dppm...

The alkynyliron complex [Fe(CCCH2CH2CN)(dppe)(C5H5)] (2) (dppe = Ph2PCH2CH2PPh2) prepared from [Fe(CCCH2CH2CN)(CO)2(C5H5)] (1) and dppe under UV irradiation, reacted with HBF4Et2O in tetrahydrofuran and with NH4[PF6] in CH2Cl2 to give the cationic vinylidene derivative [Fe(CCHCH2CH2CN) (dppe)(C5H5)][A] (A = BF4 (3a) or PF6 (3b)), which ca...

The treatment of β- and γ-cyclodextrins with the half-sandwich complexes of iron, afford the inclusion compounds CpFe(L2)A-CD (β and γ) (A = Cl, I), L2 = dppe, (CO)2, dppe = Ph2P(CH2)2PPh2, [CpFe(L2)L]PF6·CD (β- and γ-) L' = neutral donor ligands and [(CpFe(dppe))2-μ-CN]PF6·2CD (β and γ-)- The inclusion compounds [CpFe(dppe)NCCH3]PF6 · γ-CD and [Cp...

1. INTRODUCCIÓN Los reactores fotocatalíticos cuyo diseño se basa en el uso de sólidos en suspensión requieren de una etapa de proceso para la separación y recuperación del catalizador. El empleo de catalizadores soportados sobre un sustrato provee una alternativa para suprimir la etapa de separación pero en este caso, además de las reacciones supe...