Results 71 to 80 of about 6,598 (186)

Synthesis, Characterization and Thermal Decomposition Studies of Cr(III), Mn(II) and Fe(III) Complexes of N, N '-Bis[1,3-benzodioxol-5-ylmethylene]butane-1,4-diamine

open access: yesE-Journal of Chemistry, 2009
A bidentate Schiff base ligand namely, N,N'-bis-1,3-benzodioxol-5-ylmethylene]butane-1,4-diamine was synthesised by condensing piperonal (3,4-dioxymethylenebenzaldehyde) with butane-1,4-diamine. Cr(III), Mn(II), Fe(III) complexes of this chelating ligand
Prasad M. Alex, K. K. Aravindakshan
doaj   +1 more source

Nitrate-Dependent Iron Oxidation: A Potential Mars Metabolism [PDF]

open access: yes, 2018
This work considers the hypothetical viability of microbial nitrate-dependent Fe2+ oxidation (NDFO) for supporting simple life in the context of the early Mars environment.
Abramov   +185 more
core   +4 more sources

Superparamagnetic Poly (3-hydroxybutyrate-co-3 hydroxyvalerate) (PHBV) nanoparticles for biomedical applications [PDF]

open access: yes, 2013
Indexación: ScieloBackground: The progress in material science and the recent advances in biodegradable/biocompatible polymers and magnetic iron oxide nanoparticles have led to develop innovative diagnostic and therapeutic strategies for diseases based ...
Altbir, Dora   +6 more
core   +2 more sources

Cyclic voltammetry and reduction mechanistic studies of styrylpyrylium perchlorates

open access: yesBulletin of the Chemical Society of Ethiopia, 2013
The reduction and oxidation potentials of methylated 4-styrylpyrylium and 6-styrylpyrylium perchlorates have been evaluated using cyclic voltammetry, in comparison to their non-methylated derivatives values.
Y. L. Bonzi-Coulibaly   +4 more
doaj  

4-Iodoanilinium perchlorate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2010
In the crystal structure of the title compound, C(6)H(7)IN(+)·ClO(4) (-), the ions are connected in a three-dimensional hydrogen-bonded network via N-H⋯O hydrogen bonds.
openaire   +3 more sources

The responses of an anaerobic microorganism, Yersinia intermedia MASE-LG-1 to individual and combined simulated Martian stresses. [PDF]

open access: yesPLoS ONE, 2017
The limits of life of aerobic microorganisms are well understood, but the responses of anaerobic microorganisms to individual and combined extreme stressors are less well known.
Kristina Beblo-Vranesevic   +20 more
doaj   +1 more source

A Two-Step K-Ar Experiment on Mars: Dating the Diagenetic Formation of Jarosite from Amazonian Groundwaters [PDF]

open access: yes, 2017
Following K-Ar dating of a mudstone and a sandstone, a third sample has been dated by the Curiosity rover exploring Gale Crater. The Mojave 2 mudstone, which contains relatively abundant jarosite, yielded a young K-Ar bulk age of 2.57 ± 0.39 Ga (1σ ...
Amirkhanoff   +79 more
core   +2 more sources

Synthesis and spectral studies on Co(II)​, Ni(ii) and Cu(II) complexes with 1,​2-​bis(N-​methylbenzimidazolyl)​benzene [PDF]

open access: yes, 2014
Reactions of hydrated halides​/perchlorate of cobalt(II)​, nickel(II) and copper(II) with 1,​2-​bis(N-​methylbenzimidazolyl)​benzene (L) in stoichiometric amts. in ethanol-​teof​/acetone​/thf produced complexes of the formulas MX2L·nH2O (n = 1, M = Co, X
Hunasekatte, G.B.   +2 more
core   +1 more source

Physicochemical properties of nickel and cobalt sulphate solutions of hydrometallurgical relevance [PDF]

open access: yes, 2003
Producing nickel and cobalt metal by high pressure acid leaching (HPAL) of nickel laterites is becoming one of Australia's largest mineral processing industries.
Chen, Ting
core   +1 more source

Nucleofugalities of neutral leaving groups in 80% aqueous acetonitrile [PDF]

open access: yes, 2016
Nucleofugalites of tetrahydrothiophene, dimethyl sulfide and differently substituted pyridines in 80 % aqueous acetonitrile have been derived from the SN1 solvolysis rate constants of the corresponding X,Y-substituted benzhydryl derivatives (1–10).
Jurić, Sandra   +2 more
core   +4 more sources

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