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inquirynitric acid
B
yttrium(III) nitrate
Conditions | Yield |
---|---|
In water nitrates of Ba and Y and a basic nitrate of Cu obtained on treatment of CuO, BaCO3 and Y2O3 with HNO3; soln. evapd. to dryness; X-ray diffraction; |
nitric acid
B
yttrium(III) nitrate
Conditions | Yield |
---|---|
In nitric acid byproducts: H2O; dissoln.; |
Conditions | Yield |
---|---|
Y2O3 dissolved in conc. HNO3; | |
In water Y2O3 dissolved in dil. HNO3 to pH 2; | |
In nitric acid Y2O3 dissolved in min. amt. dild. nitric acid (1:1), evapd. to dryness; cooled to room temp.; |
Conditions | Yield |
---|---|
steel bomb, 150°C, 80 atm, 24 h; | >99 |
In neat (no solvent) byproducts: N2O3; heating at 150°C, 80 atm;; |
yttrium(III) nitrate
Conditions | Yield |
---|---|
In neat (no solvent) heating (160-140°C), vac.; |
yttrium(III) nitrate
Conditions | Yield |
---|---|
With nitric acid In water Dissolving the oxide into reagent grade conc. nitric acid.; Heating the soln. to remove excess HNO3.; | |
With HNO3 In nitric acid aq. HNO3; dissoln. of oxide in boiling nitric acid; |
Conditions | Yield |
---|---|
In neat (no solvent) heating at 150°C in a closed tube for 24 hours;; | >99 |
Conditions | Yield |
---|---|
In neat (no solvent) thermic decomposition on heating at 232°C (decomposition of NH4NO3 not above 270°C);; thermoanalysis;; | |
In neat (no solvent) thermic decomposition on heating at 232°C (decomposition of NH4NO3 not above 270°C);; thermoanalysis;; |
Conditions | Yield |
---|---|
Heating; |
yttrium(III) nitrate
Conditions | Yield |
---|---|
With nitric acid Heating; |
yttrium(III) nitrate
Conditions | Yield |
---|---|
In water soln. of Y3+, Ba2+ and Cu2+ nitrates mixed to ratio of 1:2:3 = Y3+:Ba2+:Cu2+, 30% excess satd. soln. of (NH4)2C2O4 added at 25°C, pH = 2.38-2.53, pptn. of YBa2Cu3(C2O4(2-))n, centrifuged, dried (100°C), calcinated 860°C for 6 h; | 100% |
Conditions | Yield |
---|---|
In water; ethylene glycol stoich. amt. of Y and Tb salts stirred with H2O; heated at 140°C for 1 h; mixed by stirring for 4 h in refluxing diethylene glycol at 180°C; water removed; filtered; washed (MeOH); dried at 100°Cfor 1 h; heat treated for 3 h at ...; | 100% |
With citric acid; formaldehyde In 2-methoxy-ethanol nitrates dissolved in 2-methoxyethanol; citric acid added, then formaldehyde added; placed on sapphire filtrate; spun at 2000 rpm for 100 s; dried in air at 100°C, baked at 600°C; repeated up to 15 times, annealed at 900°C for 2 h; |
Conditions | Yield |
---|---|
In acetonitrile 1:1 mixt. stirred overnight; filtered, evapd. (vac.), elem. anal.; | 99% |
Conditions | Yield |
---|---|
In methanol 1:1 mixt. stirred overnight; evapd. (vac.), elem. anal.; | 99% |
Conditions | Yield |
---|---|
In water; ethylene glycol High Pressure; mixt. Ln(NO3)3, squaric acid, ethylene glycol and water were heated in Teflon-lined autoclave at 180°C for 3 days and cooled to room temp. at 12°C/h; product was filtered, washed with water, rinsed with EtOH and dried in desiccator at room temp.; elem. anal.; | 99% |
Conditions | Yield |
---|---|
In water addn. of soln. of H2C2O4 (0.20 M) to soln. of Y salt (0.025 M) (room temp., pH = 2.32+-0.20; pptn.); | 96.36% |
yttrium(III) nitrate
Conditions | Yield |
---|---|
With nitric acid; sodium acetate; ascorbic acid at 95℃; for 0.333333h; pH=Ca. 5.5 - 6; Inert atmosphere; | 95% |
yttrium(III) nitrate
Conditions | Yield |
---|---|
With acetylacetone In methanol methanolic soln. contg. equimolar amts. Cu(NO3)2, rare earth nitrate, Ba(OH)2 and acetylacetone (pH 8, piperidine) heated (60°C) and stirred until a homogeneous lilac ppt. started to settle; ppt. filtered out, washed (MeOH and ether), dried (vac. desiccator, silica gel), elem. anal.; | 92% |
yttrium(III) nitrate
N-(4-benzoylidene-3-methyl-1-phenylpyrazol-5-one)isonicotinylhydrazine
Conditions | Yield |
---|---|
In ethanol refluxing (4 h); concentration, washing (hot C6H6), dissoln. in hot EtOH, pptn. on Et2O addn. (stirring), collection, drying (vac., over P2O5); elem. anal.; | 92% |
Conditions | Yield |
---|---|
With urea In water High Pressure; hydrothermal treatment at 80 °C for 24 h and at 180 °C for48 h under autogenous pressure; ppt. filtered, washed with water, ethanol, dried at vac. at 60 °C; powder XRD; | 90% |
Conditions | Yield |
---|---|
In water addn. of aq. NH3 soln. within 1 min to a sol. of Y(NO3)3 and H2O (in a glass vessel under agitation with a paddle mixer), addn. of oxalic acid to the Y(OH)3 slurry (concn. of acid 0.1 mol/dm**3, addn. time 10 s, molar ratio H2C2O4:Y(OH)3=1.75); filtration (vac. suction), washing with H2O, drying on a hot plate; | A 89% B 11% |
yttrium(III) nitrate
1,2-dihydro-1,5-dimethyl-2-phenyl-4-formyl(benzhydrazide)-3H-pyrazol-3-one
Conditions | Yield |
---|---|
In methanol; ethanol soln. Y(NO3)3 in MeOH added dropwise with stirring to a boiling soln. ofN'-((2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)methylidene)benzohydr azide (1:2.1 mol) in EtOH; reflux about 4 h; cooling; ppt. filtered off; washed (i-PrOH, hot C6H6); crystd. (MeOH); dried (vac., P2O5); elem. anal.; | 89% |
yttrium(III) nitrate
N,N-dimethyl-formamide
potassium iodide
Conditions | Yield |
---|---|
at 60℃; for 3h; | 87% |
Tetraisopropyl methylenediphosphonate
yttrium(III) nitrate
Conditions | Yield |
---|---|
In acetonitrile in air; soln. was concd., ppt. was washed with ether, dried in vac., elem. anal.; | 86% |
yttrium(III) nitrate
2-(pyridin-2-yl)-3-((pyridin-2-ylmethylene)-amino)-2,3-dihydroquinazolin-4(1H)-one
Conditions | Yield |
---|---|
With NH3 In methanol soln. of nitrate and ligand in MeOH was refluxed for 2 h; alcoholic NH3 was added to pH 6.5; refluxed for 3-4 h; concd.; residue macerated with petroleum ether; filtered; washed (H2O, ether); dried in air; elem. anal.; | 84% |
Conditions | Yield |
---|---|
In ethanol; water addn. of alc. soln. of ligand to hot aq. soln. of metal salt (dropwise, stirring), heating (water bath, 10 min), pptn.; sepn. (filtration under suction), drying (air), storing (over fused CaCl2); elem. anal.; | 80% |
Conditions | Yield |
---|---|
With NaOH In water High Pressure; Y-salt was dissolved in water, isophthalic acid and phenanthroline were added under stirring, pH was adjusted to 5 (NaOH), the mixt. was honogenized for 30 min at room temp., sealed, heated at 180°C for 72 h under autogeneous pressure; crystals were filtered under vac., dried at ambient temp.; elem. anal.; | 80% |
yttrium(III) nitrate
4-formyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one
[Y(4-formyl-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one)2(NO3)2]NO3
Conditions | Yield |
---|---|
In ethyl acetate dropwise addn. of soln. of Ln(NO3)3 to soln. of pyrazolinone, refluxing (10 min), pptn. on cooling to room temp.; filtration, washing (hot EtOAc, hot benzene), recrystn. (MeCN), drying (vac., over P2O5); elem. anal.; | 80% |
Conditions | Yield |
---|---|
for 0.166667h; Heating; | 80% |
yttrium(III) nitrate
1,2-bis(pyrrolidin-2-on-1-yl)-1-etane
Conditions | Yield |
---|---|
In acetonitrile 2 equiv. of ligand; pptn. on mixing or after concn. at room temp. (not specified), collection, washing (MeCN), drying (vac., over silica gel); elem. anal.; | 76% |
yttrium(III) nitrate
Ethane-1-phosphono-2-sulphonic acid
yttrium 2-phosphonatoethanesulfonate
Conditions | Yield |
---|---|
With NaOH In water H2O added to mixt. of aq. solns. of Y salt, (HO)2P(O)C2H4SO3H and NaOH (molar ratio 1:1:2); homogenized by shaking for 2 min; heated at 170°C for 24 h; detd. by X-ray powder diffraction; | 76% |
With NaOH In water other Radiation; H2O added to mixt. of aq. solns. of Y salt, (HO)2P(O)C2H4SO3H and NaOH (molar ratio 1:1:2); microwave heated at 170°C for 2-24 h with stirring (0-900 1/min); detd. by X-ray powder diffraction; | 32% |
With NaOH In water High Pressure; under hydrothermal conditions; aq. soln. contg. Y salt, (HO)2P(O)C2H4SO3H and NaOH (molar ratio 1:1:2 or 1:1:3) heated at 170°C for 24 h; detd. by X-ray powder diffraction; |
[2,2]bipyridinyl
yttrium(III) nitrate
2-hydroxyl-4-carboxylbenzenesulfonic acid
water
Conditions | Yield |
---|---|
With sodium hydroxide at 120℃; for 72h; pH=5; Autoclave; High pressure; | 76% |
1,10-Phenanthroline
yttrium(III) nitrate
water
benzene-1,2-dicarboxylic acid
Conditions | Yield |
---|---|
With NaOH In water High Pressure; Y-salt was dissolved in water, phthalic acid and phenanthroline were added under stirring, pH was adjusted to 5 (NaOH), the mixt. was honogenized for 30 min at room temp., sealed, heated at 180°C for 72 h under autogeneous pressure; crystals were filtered under vac., dried at ambient temp.; elem. anal.; | 75% |
yttrium(III) nitrate
tris(2-[(3,4-dihydroxybenzylidene)imino]ethyl)amine
[Y(tris(2-[(3,4-dihydroxybenzylidene)imino]ethyl)amine)(NO3)2]NO3*H2O
Conditions | Yield |
---|---|
In methanol a soln. of Y salt added slowly to a soln. of ligand, stirred for 2 h at room temp.; filtered, washed (MeOH), dried (vac.); elem. anal.; | 75% |
Conditions | Yield |
---|---|
With sodium acetate for 8h; pH=5; Reflux; | 75% |
yttrium(III) nitrate
periciazine
Conditions | Yield |
---|---|
In ethanol 15 min; pptn. washing (EtOH), drying (vac.); elem. anal.; | 74% |
yttrium(III) nitrate
Conditions | Yield |
---|---|
With HCl; H2O In hydrogenchloride addn. of the Y salt in aq. HCl to a soln. of the triacetic acid in H2O, refluxing the mixt. until complete clearness of the soln., cooling to room temp.; crystn. on adjusting the pH to 4 and standing, filtration, washing (cold H2O), drying under vac., elem. anal.; | 74% |
yttrium(III) nitrate
p-chlorobenzoyl-di-(2-pyridyl)ketohydrazone
water
Conditions | Yield |
---|---|
In methanol; water addn. dropwise of methanolic soln. of ClC6H4CONHNC(C5H4N)2 (2 equiv.) to water soln. of Y(NO3)3 (1 equiv.); stirring for 4 h; filtration, washing with MeOH; drying in vac. over anhyd. CaCl2; elem. anal.; | 74% |
yttrium(III) nitrate
trifluoperazine hydrochloride
Conditions | Yield |
---|---|
In ethanol 15 min; pptn. washing (EtOH), drying (vac.); elem. anal.; | 73% |
1,10-Phenanthroline
yttrium(III) nitrate
benzenephosphono-3-sulphonic acid
Conditions | Yield |
---|---|
In water High Pressure; mixt. of Y(NO3)3, 3-phosphonobenzesulfonic acid, 1,10-phenanthroline in H2O placed in autoclave, pH adjusted to 4.0 by NaOH, heated to 150°C for 4 d; collected; elem. anal.; | 73% |
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