:In this chapter we review the history of neodymium-doped diode-pumped solid-state lasers (DPSSLs), since the first successful concepts exploited for industrial applications until the most recent state-of-the-art solutions. We also discuss the major issues related to power or energy scaling of D...

A scandium orthovanadate (ScVO4) single crystal doped with Nd at a concentration of 0.5 at% with dimensions of ϕ8×35 mm2 has to our knowledge for the first time been successfully grown by the floating zone method. The absorption spectrum was measured at room temperature, showing that the transi...

Crystal field parameters of neodymium impurity centers in YVO4 single crystals were determined using data of CW EPR spectroscopy and the known energy level schemes. The spin echo spectroscopy was used to determine spin-lattice and spin-spin relaxation times of the 143Nd3+ and 145Nd3+ impurity io...

Cerium orthovanadate, neodymium orthovanadate and mixed cerium neodymium orthovanadate nanoparticles was prepared by co-precipitation method. Powder X-ray diffraction reveals tetragonal zircon structure. Slight increase in lattice parameter, volume and decrease in X-ray density inferred that Ce3...

The transition metal vanadium is widely distributed in the environment and exhibits various biological and physiological effects in the human body. As a well known vanadium compound, sodium orthovanadate (SOV) has shown promising antineoplastic activity in several human cancers. However, the eff...

Research on biological influence of vanadium has gained major importance because it exerts potent toxic, mutagenic, and genotoxic effects on a wide variety of biological systems. However, hematological toxicity is one of the less studied effects. The lack of information on this issue prompted us...

Vascular dementia (VaD) is the second most common form of dementia after Alzheimer’s disease, but drug regulatory authorities have not approved any effective medication for this indication. Researchers are keenly aware of the need to uncover precise and druggable targets for VaD. However, findi...

The vibrational spectra of rubidium and caesium mono- and diuranates, M2UO4 and M2U2O7 (M=Rb or Cs), have been measured in the infrared range, 4000–200 cm−1, and the Raman shift range of 1100–50 cm−1. The Raman spectra of these uranates are reported for the first time. The uranate ion site sym...

The enthalpy of reaction of α-sodium uranate (Na2UO4) with approximately 0.1 M HCl has been determined to be -(41935 ± 176) calth mol−1. Combination of this result with measured enthalpies of solution of NaCl in HCl(aq) and of UO2Cl2 in an aqueous mixture of NaCl and HCl, together with auxilia...

Four thallium(I) uranates(VI), Tl4UO5, Tl2UO4, Tl2U2O7 and Tl2U3O10, were prepared and their IR, and, for the first time, their Raman, electronic and X-ray absorption (EXAFS) spectra have been measured. These uranates are thermally stable under nitrogen up to 660 °C but above this temperature t...

Solid state reactions of Na2U2O7 and K2U2O7 in air at 1273 K, formed mixed uranates of type (KxNa1−x)U2O7. Reduction of these mixed uranates formed (KxNa1−x)UO3 perovskite type of phase, having cubic structure for 0.5 ≤ x ≤ 1.0 and orthorhombic structure for 0 ≤ x

Na3.16(2)UV,VI0.84(2)O4 is obtained from the reaction of sodium with uranium dioxide under oxygen potential conditions typical of a sodium-cooled fast nuclear reactor. In the event of a breach of the steel cladding, it would be the dominant reaction product forming at the rim of the mixed (U,Pu)...

Vibrational (Raman and infrared) spectra of nine alkali metal (lithium, sodium and potassium) uranates have been measured in the infrared range of 4000–250 cm−1 and the Raman shift range of 1100–50 cm−1. The Raman spectra of sodium and potassium uranates, and lithium polyuranates are reported ...

The preparation and thermal stability of the various phases in the sodium uranate system, in which uranium has the valency of both VI and V, are described. X-ray powder data and heats of formation are given.

This is the first-time report on the repurposing n-butyl stannoic acid as a catalyst for direct amidation of carboxylic acids with amines. Notably, efficient amidation observed in comparison with all other catalytic methods reported up until now. The protocol has successfully applied to the synt...

Reactions of 7-(X)-substituted ethyl 1-amino-4-oxo-1,4-dihydroquinoline-3-carboxylates (1a-c; X = F, Cl and 4-methylpiperazin-1-yl) with mono- and di-ketones have been studied. Treatment of 1a; X = F with cyclopentanone and cyclopentanone in acetic acid resulted in the corresponding azomethynes;...

A 2-phenyl-4-quinolone (2-PQ) derivative, 2-(3-fluorophenyl)-6-methoxyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (YJC-1), was synthesized in our laboratory. In this study, we delineated the growth-inhibitory effect of YJC-1 in human lung carcinoma A549 cells. YJC-1 inhibited cell growth with...

In this paper we report regioselective tandem metal-catalyzed aminations on dihaloquinolines (2-chloro-3-iodoquinoline and 2,3-dibromoquinoline) with amino(benzo)(di)azines. Eight new heterocyclic scaffolds of the dipyridoimidazole type could be synthesized. By controlling the reaction temperatu...

3-Ethoxycyclobutanones reacted with pyridines, quinolines, and isoquinolines to give the corresponding formal [4+2] cycloadducts, 9a-hydro-2H-quinolizin-2-one derivatives, by using Me3SiOTf in acetonitrile. Cycloaddition of 3-ethoxy-2-monoalkylcyclobutanones to 5-nitroquinoline or 4-cyanopyridin...

Aromatic cycloimmonium salts underwent different reaction pathways when treated with ethyl cyanoformate in triethyl amine medium, including selective γ-cyano substitutions (in case of phenanthrolinium and quinolinium salts) and 3+2 dipolar cycloadditions (for phthalazinium and isoquinolinium sa...