Crystals of Li0.33 MoO3 (blue), Rb0.23MoO3 (blue) and Cs0.31MoO3 (red) were grown by electrolysis from MoO3M2MoO4 melts (M =alkali metal) with composition 70–77 mole% MoO3. Melts richer in M2MoO4 produced MoO2 only. Correlation is made between bronze formation and the coordination of Mo in the ...
Currently, 31 rubidium, 35 strontium, 35 molybdenum, and 38 rhodium isotopes have been observed and the discovery of these isotopes is described here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.
Molecular absorption spectra of the diatomic molecules AlI, GaI, InI, TlI, MgI, CaI, SrI and BaI, generated in a graphite furnace, were studied using a high-resolution echelle spectrometer with the aim of finding a simple, reliable and sensitive analytical method for the determination of iodine....
We have studied the shielding properties of Barium compounds such as BaF2, BaI2, BaS, Ba3N2, BaSe and BaH2. The photon interaction parameters such as mass attenuation coefficient, linear attenuation coefficient, Half Value Layer (HVL), Tenth Value Layer (TVL), effective atomic number and electro...
The reaction between BaI2 · 2H2O and NaHFIP [HFIP = OCH(CF3)2] in a 1:1 stoichiometry gave the heterometallic compound NaBaI2(HFIP)(H2O)(THF)0.5 (1). Attempts to recrystallize 1 in the presence of N- or O-donor ligands lead to redistribution reactions. Barium iodide adducts such as BaI2(DME)3 (...
A designed naphthalene derivative (potassium 2,2′-(naphthalen-1-ylazanediyl)diacetate, ND) was synthesized successfully which characterized by spectroscopic techniques (NMR, IR and HRMS-ESI-TOF). The sensitivity and selectivity were high toward Ba2+ in aqueous solution (100.0 mM HEPES buffer, 1...
Rapid growth within performance and stability of organic-inorganic halide-based perovskite solar cells (PSCs) has made this emerging photovoltaics a great potential for further research towards successful commercialization. However, two major issues of: (i) Structural ambient stability, and (ii)...
This chapter describes the new developments in the field of 1,2,4,5-tetrazine chemistry from 1995 to 2006, with emphasis on theoretical methods, experimental structural methods, synthesis of novel 1,2,4,5-tetrazine derivatives, and applications of 1,2,4,5-tetrazines in organic synthesis. X-Ray d...
3,6-Diaryl-dihydro-1,2,4,5-tetrazine derivatives were synthesized and their structures were confirmed by single-crystal X-ray diffraction. Monosubstituted dihydrotetrazines are the 1,4-dihydro structure, but disubstituted dihydrotetrazines are the 1,2-dihydro structure. The results of further re...
Gas phase thermolyses of 3,6-dimethyl, -diethyl and -di-n-propyl substituted 1,2,3,6-tetrahydro-1,2,4,5-tetrazines 1a–1c yielded the corresponding N-unsubstituted imines 2a–2c. The He(I) photoelectron spectra of propanimine (2b) and butanimine (2c) are presented for the first time. First ioniz...
Two conjugated polymers PTTTz and PHTTz have been designed and synthesized by introducing s-tetrazine as electron-withdrawing moieties. Compared with PTTTz with 2-octyldodecyl-substituted tetrathiophene derivative as electron-donating moieties, PHTTz with hexyl- and 2-octyldodecyl-substituted he...
Tuberculosis (TB) has recently become the leading killer among infectious diseases. Multidrug and extensively drug-resistant Mycobacterium tuberculosis strains urge the need to develop anti-TB drugs with a novel mechanism of action. We describe synthesis of 22 novel imidazo[1,2-b][1,2,4,5]tetraz...
Carbon dioxide has been coverted into methanol with an electrochemical photocell. The electrocatalytic reduction of CO2 proceeds via a surface-confined metal complex in the presence of homogeneous catalysts consisting of a metal complex and a primary alcohol. Electrons for the surface-confined m...
The reduction of CO to methanol by Everitt's salt has been studied at room temperature and atmospheric pressure. The CO reduction is caused by the oxidation reaction of Everitt's salt to Prussian blue. However, this redox reaction can only be activated by the coexistence of a metal com...
Recently, the mineral carbonation via the reaction of CO2 with saline aquafers received much attention as one of the most promising ways for geologic CO2 storage. This paper reports microstructure and carbon storage capacity of hydrated magnesium carbonates (HMCs) synthesized from different sour...
Uyuni salar (Bolivia), the largest resource of lithium (Li) in the world not only contains a high level of Li but also ~ 1.3% w/w magnesium (Mg) in strong NaCl brines. The recovery of Mg is therefore essential as the resources represent high value of Mg by-products if recovered. High purity hydr...
Magnesium slag, an industrial byproduct containing high contents of CaO and MgO, was activated with CO2 to prepare calcium carbonate binders via accelerated carbonation. The mechanical strength, microstructure, and volume stability of the carbonate binders were investigated. Results show that ca...
We present a theoretical investigation, based on ab initio calculations and the quasi-harmonic approximation, on the stability properties of magnesium (MgCO3) and calcium (CaCO3) carbonates at high temperatures and pressures. The results indicate that those carbonates should be stable in the Ear...
Magnesium carbonate minerals produced by reaction of H2O–CO2 with ultramafic rocks occur in a wide range of paragenetic and tectonic settings and can thus provide insights into a variety of geologic processes, including (1) deposition of ore-grade, massive-vein cryptocrystalline magnesite; (2) ...
In this work a novel strategy for bio-methane production and magnesium chloride waste valorization is addressed. The proposed process is a potential alternative path to the already existing biogas upgrading technologies by carbon dioxide mineralization into valuable magnesium carbonate. The main...
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