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AbstractAbstract
[en] Binuclear molybdenum(0) carbonyl complexes were synthesized based on naphthophosphacyclophanes containing a 1,6-dihydroxynaphthalene fragment and diethylamide linkers. The physicochemical and spectral characteristics of the synthesized coordination systems were studied.
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Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Country of input: International Atomic Energy Agency (IAEA)
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Etude des complexes Mo(V)-thiomalate se formant a pH<6
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Bull. Soc. Chim. Fr., Pt.1; (no.12); p. 2766-2770
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[en] Equilibria of Mo(6) in acid aqueous solutions with excess of 2,3-dihydroxynaphthalene (DHN) cDHN/cMo = 2,3 - 107(I = 0,6 mol l-1(NaClO4), 0,6% v/v ethanol) were studied spectrophotometrically. Formation constants of MoO2R22-(logK012 = 5,89 ± 0,01) and presumed MoO2(OH)(OH2)R-(logK111 = 7,79 ± 0,01) chelates were evaluated using SQUAD-G program. (Authors)
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[en] Mo2O4Cl2(X-py)4.2H2O and (X-pyH)4[Mo2O4(NCS)6].H2O have been prepared. The infrared, electronic and reflectance spectra, molar conductances and magnetic susceptibility data of complexes are reported. Mo2O4Cl2(X-py)4.2H2O(X-py were 3- and 4-cyanopyridine, nicotinamide, 3,5-lutidine and 2-amino-4-picoline) were obtained by hydrolysis of the corresponding substituted pyridinium oxopentachloromolybdates (V). Addition of water and substituted pyridines to molybdenum(V0-thiocyanate ethylacetate extract yield brown compounds, (X-pyH)4[Mo2O4(NCS)6].H2O where X-py were pyridine, α-picoline, 3-bromopyridine 3,5-lutidine, 3-benzoyl-pyridine and 4-acetylpyridine. Binuclear, Mo2O4Cl2(X-py)4.2H2O prepared from hydrolysis of (X-pyH)2[MoOCl5].H2O were diamagnetic and nonelectrolytes. The anion of (X-pyH)4[Mo2O4(NCS)6].H2O was formulated as dimer and electrolyte. (Author)
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J. Korean Chem. Soc; ISSN 0418-2472;
; v. 26(6); p. 383-388

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[en] Green crystalline salts of substituted pyridinium oxopentachloromolybdates (V) were obtained from concentrated hydrochloric acid solution of molybdenum (V)-thiocyanate extract. MoOCl3(X-py)2(X-py were 4-and 3-cyanopyridine, 2-amino-4-picoline and 4-acetylpyridine) were obtained by reflux of the corresponding substituted pyridinium salts of oxopentachloromolybdates (V) in absolute ethanol. (X-pyH)2[MoOCl5].H2O containing the NoOsup(3+) group are dissolved and hydrolysed in water but MoOCl3 (X-py)2 are insoluble in water, alcohol and acetone. The complexes are paramagnetic compounds. (Author)
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J. Korean Chem. Soc; ISSN 0418-2472;
; v. 26(6); p. 378-382

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[en] A method for the extractive separation of molybdenum has been developed based on the extraction of the Mosup(VI)-10-phenanthroline complex into isobutyl methyl ketone. Under appropriate conditions Wsup(VI), Crsup(III), Crsup(VI), Usup(VI), Vsup(V), Thsup(IV), Zrsup(IV), Sesup(IV), Bisup(III), Fesup(II), Fesup(III), Cosup(II), Cosup(II), Nisup(II), Mnsup(II), Mgsup(II), Cusup(II), Pbsup(II), Znsup(II) and Pdsup(II) do not interfere. The ratio of metal:ligand in the complex was found to be 1:4 by conductimetric titration. The method compares favourably with existing methods for the extractive separation of molybdenum. (author)
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No abstract available
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Etude des especes chlorees du Mo(V) dans l'acide acetique
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C. R., Ser. C; v. 280(9); p. 563-566
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[en] Regularities of tungsten(6) extraction by the salts of amines and quaternary ammonium compounds from low-acid and alkaline solutions and regularities of molybdenum and tungsten separation, using different extractants, were considered
Original Title
Ehkstraktsionnye protsessy izvlecheniya vol'frama i razdeleniya molibdena i vol'frama
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Sobczak, J.M.
Materials of yearly scientific assembly of Polish Chemical Society, Poznan 23-26 September 19961996
Materials of yearly scientific assembly of Polish Chemical Society, Poznan 23-26 September 19961996
AbstractAbstract
[en] Short communication. 3 refs
Original Title
Synteza kompleksow oksoperokso molibdenu(IV) z ligandami tridentatnymi
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Polish Chemical Society, Warsaw (Poland); Stowarzyszenie Inzynierow i Technikow Mechanikow Polskich, Warsaw (Poland); [422 p.]; 1996; p. S-4 I-3; Polskie Towarzystwo Chemiczne; Poznan (Poland); Scientific Assembly of Polish Chemical Society; Zjazd Naukowy Polskiego Towarzystwa Chemicznego; Poznan (Poland); 23-26 Sep 1996; KBN GRANT NO. 2P-303-156-04; Available from Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
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Samin; Lahagu, F.; Basuki, K. T.; Ernawati, F.
Proceeding of the Scientific Meeting and Presentation on Basic Research of Nuclear Science and Technology: Book II. Nuclear Chemistry, Process Technology, and Radioactive Waste Processing and Environment1996
Proceeding of the Scientific Meeting and Presentation on Basic Research of Nuclear Science and Technology: Book II. Nuclear Chemistry, Process Technology, and Radioactive Waste Processing and Environment1996
AbstractAbstract
[en] The formation constant of molybdophosphate complex and it's application in the product of xenotime sand, tooth and bone have been studied by spectrophotometric method. The molybdophosphate complex were formed from reaction between phosphate and molybdate on several of pH in the strong acid condition (pH = 0.45 - 0.71) and several of phosphate mole fraction (0.01 - 0.08). The several of complex formation reactions were determined by matrix disintegration technique. Molybdophosphate complex were founded three forms i.e. (P2Mo18O62)6- or 9 MPA, (PMo11O39)7- or 11 MPA and (PMo12O40)3- or 12 MPA. The formation constant of (PMo12O40)3- complex was found β = 1046.95 ± 103.7, while for (P2Mo18O62)6- and (PMo11O39)7- were not detected. The application in samples were found the concentration of P in product of xenotime sand : 5.37±0.08 μg/ml, in canine-tooth: 10.40 - 19.49 % in cutting-tooth : 11.08 - 18.05 % and in bone 10.94 - 14.29 %. (author)
Original Title
Studi tetapan pembentukan molibdofosfat dan aplikasinya dalam hasil olah pasir xenotim, gigi dan tulang
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Yogyakarta Nuclear Research Centre, National Atomic Energy Agency, Yogyakarta (Indonesia); 405 p; ISSN 0216-3128;
; Jun 1996; p. 80-87; Scientific Meeting and Presentation on Basic Research of Nuclear Science and Technology; Pertemuan dan Presentasi Ilmiah Penelitian Dasar Ilmu Pengetahuan dan Teknologi Nuklir; Yogyakarta (Indonesia); 25-27 Apr 1995; Also available from Center for Development of Informatics and Computation Technology, National Nuclear Energy Agency, Puspiptek Area, Fax. 62-21-7560923, PO BOX 4274, Jakarta (ID); author; 8 refs.; 3 tabs.; 4 figs.

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