Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Jiří Fusek"'
Publikováno v:
Journal of Organometallic Chemistry. 649:181-190
Preparative routes to 8-hydroxy-bis(1,2-dicarbollido)-3-cobalt(1-)ate ( 2 ) and 8,8′-dihydroxy-bis(1,2-dicarbollido)-3-cobalt(1-)ate ( 3 ) ions are reported by the reductive acetoxylation of the parent bis(dicarbollido)cobaltate ion ( 1 ) followed
Publikováno v:
Journal of the Chemical Society, Dalton Transactions. :2698-2703
The 27Al and 71Ga NMR spectra of mixtures of M2X6 and M2Y6 (M = Al, Ga; X ≠ Y = Cl, Br or I) in benzene are reported. All these systems show rapid inter-halogen exchange, and in some cases stable intermediates M2XnY6 − n can be characterised spec
Publikováno v:
Collection of Czechoslovak Chemical Communications. 66:1499-1507
The C-H vertices of ortho-carborane and its derivatives can be smoothly cyanoethylated with acrylonitrile in the presence of benzyl(triethyl)ammonium hydroxide in a two-phase system: dichloromethane/water or 1,2-dimethoxyethane/water. The reaction is
Autor:
Zbynĕk Černý, Otomar Křı́ž, Jiří Fusek, Jiří Brožek, Bohuslav Čásenský, Jan Roda, Petr Bernat
Publikováno v:
Journal of Organometallic Chemistry. 555:237-246
The various synthetic routes to the magnesium di(e-caprolactamate), CL2Mg, were investigated, primarily to establish reproducibility of the route and purity of the products. The reactions of e-caprolactam, CL, with diethylmagnesium, Et2Mg, in diethyl
Publikováno v:
Journal of the Chemical Society, Dalton Transactions. :1439-1446
The non-aqueous solution chemistry of GaAlCl4 has been investigated by 27Al and 71Ga NMR spectroscopy. In dilute solution in benzene, the solute species are of the form {[RnGa]+[ClxAlCl4–x]–}m (R = arene; x = 1–3, n, m undetermined), while in c
Publikováno v:
Journal of Organometallic Chemistry. 550:125-130
An alternative route to the parent nido -5,6-C 2 B 8 H 12 dicarbaborane is reported together with a convenient synthesis of its carbon-substituted derivatives. The method is based on reactions between 4-(Me 2 S)- arachno -B 9 H 13 and alkynes R 1 R 2
Autor:
Ivana Cisarova, Francesc Teixidor, Drahomír Hnyk, Clara Viñas, P. V. R. Schleyer, Bohumil Štíbr, Zbyněk Plzák, Josef Holub, Jiří Fusek
Publikováno v:
Journal of the American Chemical Society. 119:7750-7759
Deamination of 7-(Me3N)-nido-7,8,9-C3B8H10 (1a) leads either to the parent tricarbollide anion [nido-7,8,9-C3B8H11]- (2-) or to the neutral tricarbaborane nido-7,8,9-C3B8H12 (2a), together with a small amount of 8-Me-nido-7,8,9-C3B8H11 (2b). Di- and
Autor:
John D. Kennedy, Bohumír Grüner, Clara Viñas, Tomáš Jelínek, Bohumil Štíbr, Josef Holub, Zbyněk Plzák, Francesc Teixidor, Jiří Fusek
Publikováno v:
Collection of Czechoslovak Chemical Communications. 62:1229-1238
A modification of the Plesek reaction has been employed to improve the yield in the synthesis of the parent nido ten-vertex dicarbaborane 5,6-C2B8H12, and to synthesize some of its 5- and 6-substituted derivatives. The method is based on the oxidatio
Publikováno v:
Collection of Czechoslovak Chemical Communications. 62:1070-1079
The first two cobaltacarboranes with intramolecular phoshorus bridges and two related non-bridged trimethylphosphine-cobaltacarborane derivatives are described and characterized by mass spectrometry and multinuclear NMR; all four compounds are zwitte
Publikováno v:
Journal of Organometallic Chemistry. 516:115-122
23 Na, 27 Al, and 1 H NMR spectra were obtained on benzene solutions of varying sodium alkoxohydridoaluminate compositions, Na + H x Al − (OR) 4− x , where x = 2 to 0, and OR = OCH 2 CH 2 OCH 3 . An extensive series was prepared by titration of i