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Uranium diiododioxo, also known as uranium dioxide (UO2), is a chemical compound consisting of uranium and oxygen. It is a black, crystalline solid that is insoluble in water and is commonly used as a nuclear fuel in nuclear reactors due to its ability to undergo fission and release a significant amount of energy. Uranium dioxide has a high melting point and is chemically stable, making it a suitable material for nuclear applications. It is produced through a series of chemical processes, including the conversion of uranium hexafluoride (UF6) to uranium dioxide, which is then further processed into fuel pellets for use in nuclear reactors. The compound plays a crucial role in the nuclear power industry, contributing to the generation of electricity while also raising concerns about nuclear waste management and safety.

13520-82-6

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13520-82-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13520-82-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,2 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13520-82:
(7*1)+(6*3)+(5*5)+(4*2)+(3*0)+(2*8)+(1*2)=76
76 % 10 = 6
So 13520-82-6 is a valid CAS Registry Number.

13520-82-6Relevant academic research and scientific papers

Addition of H2O and O2 to acetone and dimethylsulfoxide ligated uranyl(V) dioxocations

Leavitt, Christopher M.,Bryantsev, Vyacheslav S.,De Jong, Wibe A.,Diallo, Mamadou S.,Goddard, William A.,Groenewold, Gary S.,Van Stipdonk, Michael J.

, p. 2350 - 2358 (2009)

Gas-phase complexes of the formula [UO2(lig)]+ (lig = acetone (aco) or dimethylsulfoxide (dmso)) were generated by electrospray ionization (ESI) and studied by tandem ion-trap mass spectrometry to determine the general effect of ligand charge d

Synthesis of the stable UO2I2 the last of the uranyl dihalides. X-Ray crystal structure of [UO2I2(py) 3]

Berthet, Jean-Claude,Nierlich, Martine,Ephritikhine, Michel

, p. 870 - 871 (2004)

Treatment of UO2(OTf)2 with pure Me3SiI led to the quantitative formation of UO2I2 (1). This compound dissolved in pyridine and thf to give the red adducts [UO 2I2L3]

Uranyl polyhalides. Molecular structure of [UO2(OAsPh3)4](Br3)2 and [UO2(OPPh3)4](I3)2

Arnáiz, Francisco J.,Miranda, Mariano J.,Aguado, Rafael,Mahía, José,Maestro, Miguel A.

, p. 2755 - 2760 (2002)

Uranyl trihalides of general formula [UO2L4](X3)2 (L = hexamethylphosphoramide (HMPA), triphenylphosphine oxide (OPPh3), triphenylarsine oxide (OAsPh3); X = Br, I), along with some other hi

Synthesis, structural, and thermal aspects of dioxouranium(VI) coordination compounds of semicarbazones derived from 4-aminoantipyrine

Agarwal, Ram K.,Chakraborti, Indranil,Agarwal, Himanshu

, p. 1453 - 1470 (2004)

A series of 18 new coordination compounds of dioxouranium(VI) with semicarbazones of 4-aminoantipyrine, viz., 4[N-(p-dimethylaminobenzylidene) amino]antipyrine semicarbazone (DABAAPS), 4[N-(2′-nitrobenzylidene)amino] antipyrine semicarbazone (2′-NO2BAAPS), and 4[N-(3′-nitrobenzylidene)amino]antipyrine semicarbazone (3′-NO 2BAAPS) of the general composition [UO2L2X 2] (X = Br, I, or NCS), [UO2L2](ClO 4)2, [UO2L(NO3)2], and [UO2L(OOCCH3)2] (L = DABAAPS, 2′-NO 2BAAPS, and 3′-NO2BAAPS) were synthesized in non-aqueous solution and characterized on the basis of elemental analyses, electrical conductivity, magnetic moments, and IR spectral studies. In all of the complexes, these ligands act as neutral tridentate (N, N, O) ligands. In all dioxouranium(VI) complexes, the ν1 and ν3 modes are assigned to 845-825 cm-1 and 930-910 cm-1, respectively. Wilson's G-F matrix method was used to determine the stretching and interaction force constants from which the U-O bond distances were calculated using Badger's formula. The probable coordination number of U(VI) varies from 8-10 in these complexes. The thermal properties of these compounds are also discussed.

Synthesis and characterization of dioxouranium(VI) and thorium(IV) complexes of 2-(2′-hydroxyphenyl)benzirnidazole and 2-(2′-pyridyl)-benzoxazole

Mansingh,Mohanty,Jena,Dash

, p. 479 - 482 (2007/10/03)

The bidentate ligand 2-(2′-hydroxyphenyl)benzimidazole (L).forms mononuclear complexes of the type UO2L2X2 (X=Cl, I, NCS, NO3, CH3COO, 0.5 SO4) and ThL2X4 (X=I, NCS, NO3), whereas the biheterocyclic bidentate ligand 2-(2′-pyridyl)benzoxazole (L′) forms complexes of the type UO2LX2 (X=Cl, NCS, NO3, CH3COO, 0.5 SO4) and ThL2′X4 (X=NCS, NO3). The complexes are characterized by elemental analyses, conductivity and thermogravimetric. measurements and IR as well as 1H and 13C NMR spectral studies.

Synthesis and characterization of complexes of early actinides with tridentate schiff base ligands

Mansingh, Pathani S.,Dash, Kailash C.

, p. 904 - 907 (2007/10/03)

A series or thorium(IV) and dioxouranium(VI) complexes have been synthesised with tridentate schiff base ligands (N2O donor set) obtained by in situ condensation or N,N-dimethylethylenediamine with o-hydroxy aromatic aldehydes such as salicylaldehyde (HL) or o-hydroxy naphthaldehyde (HL').While with dioxouranium(VI), the ligands are coordinated in a neutral manner and act as tridentate donors forming complexes of the type UO2(HL)X2 or UO2(HL')X2 (X=Cl, I, NCS, NO3, CH3COO) with thorium(IV) they are coordinated as deprotonated tridentate ligands yielding complexes of the type Th(L')2X2 (X=I, NCS, NO3).The IR spectra show that the thiocyanate group is actually N-bonded unidentate isothiocyanate and both the nitrate and the acetate groups are bonded in bidentate manner while the ligands are bonded in tridentate manner in these complexes.The PMR spectra confirm the mode of bonding of the ligands either as neutral or as deprotonated species.The thermogravimetric analyses indicate the stability of the complexes.

Dioxouranium(VI) and thorium(IV) complexes of 1-methyl-2,2'-bisimidazole

Mansingh, P. S.,Mohanty, R. R.,Jena, S.,Dash, K.

, p. 639 - 642 (2007/10/03)

The biheterocyclic nitrogen donor ligand 1-methyl-2,2'-bisimidazole (MBIM) reacts with UO2X2 and ThX4 to form mononuclear complexes of the types UO2(MBIM)X2 (X=Cl, I, NCS, NO3, CH3COO, 0.5 SO4) and Th(MBIM)2X4 (X=NO3, I).The complexes are characterised by elemental analyses, conductivity, thermogravimetry and IR, NMR as well as mass spectra.The IR spectra of uranyl complexes exhibit ν(U=0) in the regions 900-925 and 825-860 cm-1 in addition to the vibrational bands of the ligand and those of the polyatomic anions.The 1H NMR spectra of the ligand and the complexes are identical, with the -CH3 group resonating at 3.5 ppm and the NH proton at 3.9 ppm region.The ring protons are observed as multiplets in the region of 7.0 to 8.0 ppm.The mass spectra of the ligand gives molecular ion peak at m/z 148 and other fragmentation products, which are appropriately assigned.However, for the complexes neither the molecular ion peak nor the metallated fragmentation patterns are observed.Thermogravimetry shows the loss of ligands in stages, finally forming the stable metal oxides as the end product.

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