نتایج جستجو برای: o3 h2o complexes

تعداد نتایج: 159566  

Journal: :Journal Of Geophysical Research: Planets 2021

Ozone (O3) in the atmosphere of Mars is produced following photolysis CO2 and readily destroyed by hydrogen radicals (HOx) released oxidation water vapor. As a result, an anti-correlation between ozone vapor expected. We describe here O3-H2O relationship derived from 4 Martian years simultaneous observations SPICAM spectrometer onboard Express spacecraft. A distinct found at high latitudes, whe...

2012
J. Deighan R. E. Johnson

All three terrestrial planets with atmospheres support O3 layers of some thickness. While currently only that of Earth is substantial enough to be climatically significant, we hypothesize that ancient Mars may also have supported a thick O3 layer during volcanically quiescent periods when the atmosphere was oxidizing. To characterize such an O3 layer and determine the significance of its feedba...

2003
Leena Gandhi

The thermal decomposition processes for metal complexes of nalidixic acid (NAL) viz: Co (NAL) OH , VO(NAL)2(H2O)3 , UO2 (NAL) 2(H2O)2 , Ru(NAL)2Cl(H2O) has been accomplished on the basis of TG, DTG and DTA studies, and the mechanism conforms to the stoichiometry of the complexes based on elemental analysis.

2013
Xinyi Chen Ekaterina Pomerantseva Keith Gregorczyk Reza Ghodssi Gary Rubloff

Atomic layer deposition (ALD) is attractive for next-generation electrical energy storage in forming passivation layers and more recently active storage material. Here we report a detailed study of ALD V2O5 as a high capacity cathode material, using vanadium tri-isopropoxide (VTOP) precursor with both O3 and H2O as oxidant. The O3-based process produces polycrystalline films with generally high...

2008
L. Kaltenegger

In a famous paper, Sagan et al. (Sagan et al.1993) analyzed a spectrum of the Earth taken by the Galileo probe, searching for signatures of life. They concluded that the large amount of O2 and the simultaneous presence of CH4 traces are strongly suggestive of biology. The detection of a widespread red-absorbing pigment with no likely mineral origin supports the hypothesis of biophotosynthesis. ...

Journal: :Journal of the American Chemical Society 1928

2013

This paper reports the three-phase (gas + liquid + hydrate) equilibrium pressure versus temperature data for a (O3 + O2 + CO2 + H2O) system for developing the hydrate-based technology to preserve ozone, a chemically unstable substance, for various industrial, medical and consumer uses. These data cover the temperature range from 272 K to 277 K, corresponding to pressures from 1.6 MPa to 3.1 MPa...

2013

This paper reports the three-phase (gas + liquid + hydrate) equilibrium pressure versus temperature data for a (O3 + O2 + CO2 + H2O) system for developing the hydrate-based technology to preserve ozone, a chemically unstable substance, for various industrial, medical and consumer uses. These data cover the temperature range from 272 K to 277 K, corresponding to pressures from 1.6 MPa to 3.1 MPa...

2015
Nathalia B. D. Lima Anderson I. S. Silva P. C. Gerson Simone M. C. Gonçalves Alfredo M. Simas Jason B. Love

β-diketonates are customary bidentate ligands in highly luminescent ternary europium complexes, such as Eu(β-diketonate)3(L)2, where L stands for a nonionic ligand. Usually, the syntheses of these complexes start by adding, to an europium salt such as EuCl3(H2O)6, three equivalents of β-diketonate ligands to form the complexes Eu(β-diketonate)3(H2O)2. The nonionic ligands are subsequently added...

Journal: :journal of the iranian chemical research 0
surendra prasad division of chemical sciences, university of south pacific, laucala bay campus, suva, fiji ram kumar agarwal department of chemistry, lajpat rai postgraduate college, sahibabad-201 005 (ghaziabad), india hans raj modi department of chemistry, lajpat rai postgraduate college, sahibabad-201 005 (ghaziabad), india

in present studies the synthesis, characterization and biological properties ofoxovanadium(iv) coordination compounds of 4[n-(4′-ethylbenzalidene)amino] antipyrinethiosemicarbazone (ebaapts) and 4[n-(2′,4′-dimethylbenzalidene)amino] antipyrinethiosemicarbazone (dmbaapts) with the general composition vox2l (x = c1-, br-, i-, no3-or ncs-) and vo(cio4)2(l)h2o (l = ebaapts or dmbaapts) are describe...

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