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The novel superacid systems HSO3F-Nb(SO3F)5 and HSO3F-Ta(SO3F)5CICHA, W. V; AUBKE, F.Journal of the American Chemical Society. 1989, Vol 111, Num 12, pp 4328-4331, issn 0002-7863, 4 p.Article

Theoretical calculations on Nb and Ta trihydride complexes. Relations with the problem of quantum mechanical exchange couplingBARTHELAT, J. C; CHAUDRET, B; DAUDEY, J. P et al.Journal of the American Chemical Society. 1991, Vol 113, Num 26, pp 9896-9898, issn 0002-7863Article

7. NiobiumKEE, T. P.Coordination chemistry reviews. 1993, Vol 127, Num 1-2, pp 155-170, issn 0010-8545Article

ETUDE DE L'ETAT DU NIOBIUM DANS LES PHASES AU COURS DE L'EXTRACTION DANS LES SOLUTIONS SULFURIQUES ET CHLORHYDRIQUESMORGUNOV AF; FROLOV YU G; SOLDATENKOVA NA et al.1975; MOSKOV. KHIM.-TEKHNOL. INST. D.I. MENDELEEVA, TRUDY; S.S.S.R.; DA. 1975; NO 89; PP. 76-82; BIBL. 17 REF.Article

Further studies on the effects of temperature and γ-radiation on the electrical and optical properties of some solid alizarin and quinizarin metal chelatesABOU SEKKINA, M. M; EWAIDA, M. A.Polymer photochemistry. 1985, Vol 6, Num 5, pp 323-338, issn 0144-2880Article

Spectrofluorimetric determination of niobium with morin enhanced by cetyltrimethylammonium bromide micellesSANZ-MEDEL, A; GARCIA ALONSO, J. I.Analytica chimica acta. 1984, Vol 165, pp 159-169, issn 0003-2670Article

SPEKTROFOTOMETRYCZNA METODA OZNACZANIA NIOBU W STALI Z ORANZEM KSYLENOLOWYM PO WYDZIELENIU TANINA ALLA ZAKRESU ZAWARTOSCI OD 0,01 DO 0,10 PROC. NB = ASPECTROPHOTOMETRIC METHOD OF DETERMINING NIOBIUM RANGING FROM 0,01 TO 0,10% NB, IN STEEL WITH XYLENE ORANGE AFTER PRECIPITATION BY TANNIN = DOSAGE SPECTROPHOTOMETRIQUE DE NB DANS L'ACIER A DES TENEURS DE 0,01 A 0,10% NB, AU MOYEN DU SYSTEME ORANGE APRES PRECIPITATION PAR LE TANNINJURCZYK J; CAPALLA K; SZEJA K et al.1980; HUTNIK; ISSN 0018-8077; POL; DA. 1980; VOL. 47; NO 4; PP. 167-171; ABS. RUS/ENG; BIBL. 9 REF.Article

COMPOSITION DES COMPLEXES DE TA ET NB, EXTRAITS PAR LES AMINES A PARTIR DE SOLUTIONS FLUOREESKUTYREV IM; STOYANOV ES; BAGREEV VV et al.1977; ZH. NEORG. KHIM.; S.S.S.R.; DA. 1977; VOL. 22; NO 4; PP. 1043-1047; BIBL. 8 REF.Article

Niob- und Tantalkomplexe mit Imido-LigandenHERRMANN, W. A; DENK, M; DYCKHOFF, F et al.Chemische Berichte. 1991, Vol 124, Num 11, pp 2401-2403, issn 0009-2940Article

Darstellung und Struktur von Tetrafluoro(η5-pentamethyl-cyclopentadienyl)niob und Tetrafluoro(η5-cyclopentadienyl)niob = Preparation and structure of tetrafluoro(η5-pentamethylcyclopentadienyl)niobium and tetrafluoro(η5-cyclopentadienyl)niobiumROESKY, H. W; SOTOODEH, M; YU MING XU et al.Zeitschrift für anorganische und allgemeine Chemie (1950). 1990, Vol 580, pp 131-138, issn 0044-2313, 8 p.Article

Analytical application of the complexation of Nb (V) with Bromopyrogallol red in micellar mediaDIAZ GARCIA, M. E; SANZ-MEDEL, A.Talanta (Oxford). 1985, Vol 32, Num 3, pp 189-193, issn 0039-9140Article

New niobium complexes with alkynes. I: Mono- and dinuclear complexesCOTTON, F. A; SHANG, M.Inorganic chemistry (Print). 1990, Vol 29, Num 3, pp 508-514, issn 0020-1669Article

OPTIMAL REACTION CONDITIONS FOR THE DIRECT SPECTROPHOTOMETRIC DETERMINATION OF NIOBIUM IN STEELS WITH SULPHOCHLOROPHENOL SCIZEK Z; DOLEZAL J.1979; ANAL. CHIM. ACTA; NLD; DA. 1979; VOL. 109; NO 2; PP. 381-391; BIBL. 21 REF.Article

REACTIONS AVEC DISLOCATION DU COORDINAT DANS LES COMPLEXES DES ELEMENTS DE TRANSITIONBUSLAEV YU A; KOKUNOV YU V.1976; KOORDIN. KHIM.; S.S.S.R.; DA. 1976; VOL. 2; NO 10; PP. 1360-1368; BIBL. 4 REF.Article

Extractive spectrophometric determination of niobium(V) with thiocyanate and amidesPATEL, K. S; DAS, M.Analytical letters. 1991, Vol 24, Num 7, pp 1273-1282, issn 0003-2719Article

UNTERSUCHUNGEN UEBER DAS MORPHOLIN-N-DITHIOCARBONSAURE MORPHOLINIUM (MDCM) ALS REAGENS IN DER QUANTITATIVEN ANALYTIK. T. 7:SPEKTRALPHOTOMETRISCHE BESTIMMUNG VON NIOB = STUDIES ON THE MORPHOLINE-N-DITHIOCARBOXYLIC ACID MORPHOLINIUM (MDCM) AS A REAGENT IN QUANTITATIVE ANALYSIS. PT. 7LIKUSSAR W.1980; MICROCHIM. ACTA; AUT; DA. 1980; VOL. 1; NO 5-6; PP. 415-422; BIBL. 21 REF.Article

DOSAGE DE ZIRCONIUM ET NIOBIUM EN PRESENCE L'UN DE L'AUTRE AVEC EMPLOI DE PICRAMINE EPSILONMEL'CHAKOVA NV; GRANOVSKIJ YU V; DEMIN YU V et al.1978; VEST. MOSKOV. UNIV., 2; S.S.S.R.; DA. 1978; NO 2; PP. 182-184; ABS. ANGL.; BIBL. 7 REF.Article

[Nb{B(η6-C6H5)2(C6H5)22-H3CC2CH3»] : the first compound with bent tetraphenylborate as 12-electron donor ligandCALDERAZZO, F; ENGLERT, U; PAMPALONI, G et al.Angewandte Chemie. International edition in English. 1992, Vol 31, Num 9, pp 1235-1236, issn 0570-0833Article

Intramolecular arene hydrogenation at niobium metal centres: stereochemical consequencesSTEFFEY, B. D; ROTHWELL, I. P.Journal of the Chemical Society. Chemical communications. 1990, Num 3, pp 213-215, issn 0022-4936Article

Extraction and spectrophotometric determination of trace amounts of niobium with diphenylglioxal-bis-(2-hydroxybenzoylhydrazone)SANZ MEDEL, A; SANCHEZ URIA, J. E; ARRIBAS JIMENO, S et al.Microchemical journal. 1984, Vol 30, Num 3, pp 334-341, issn 0026-265XArticle

COMPLEXES OF THE PENTACHLORIDES OF NB(V), TA(V) AND MO(V) WITH BENZOINS.MALHOTRA KC; CHAUDHRY SC.1976; INDIAN J. CHEM., A; INDIA; DA. 1976; VOL. 14; NO 9; PP. 706-708; BIBL. 17 REF.Article

X-RAY CRYSTAL STRUCTURE OF TETRAPHENYLPORPHINATONIOBIUM OXIDE ACETATE; DEMONSTRATION OF THE PRESENCE OF SEVEN-CO-ORDINATED NIOBIUM.LECOMTE C; PROTAS J; GUILARD R et al.1976; J. CHEM. SOC., CHEM. COMMUNIC.; G.B.; DA. 1976; NO 12; PP. 434-435; BIBL. 4 REF.Article

STRUCTURE CRISTALLINE DE LA TRI MU -OXO DI (X, BETA , GAMMA , DELTA TETRAPHENYLNIOBIOPORPHYRINE).LECOMTE C; PROTAS J; GUILARD R et al.1976; C.R. ACAD. SCI., C; FR.; DA. 1976; VOL. 283; NO 10; PP. 397-400; ABS. ANGL.; BIBL. 4 REF.Article

BIS(CYCLOPENTADIENYLS) WITH TRANSITION METAL-MERCURY BONDS. IV: FORMATION OF NIOBIUM-MERCURY BONDS AND X-RAY CRYSTAL STRUCTURE OF (NB(ETA -C5H5)2 (HGS2 CN (C2H5)2)3)KERGOAT R; KUBICKI MM; GUERCHAIS JE et al.1982; DALTON TRANS.; ISSN 0300-9246; GBR; DA. 1982; NO 3; PP. 633-638; BIBL. 27 REF.Article

DIE STRUKTUR DES DREIKERNIGEN HEXAMETHYLBENZOLNIOB-KOMPLEXES ((ME6C6)3NB3CL6)+CL-3CHCL3 = STRUCTURE DU COMPLEXE TRINUCLEAIRE HEXAMETHYLBENZENENIOBIUM ((ME6C6)3NB3CL6)+CL-3CHCL3STOLLMAIER F; THEWALT U.1981; J. ORGANOMET. CHEM.; ISSN 0022-328X; CHE; DA. 1981; VOL. 222; NO 2; PP. 227-233; ABS. ENG; BIBL. 11 REF.Article

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