Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Leonhard Walz"'
Autor:
Helmut Schlemper, Heinz Wilhelm Rotter, M. Fletschinger, Christian Hasenfratz, Guo-Zen Ji, Hans Georg von Schnering, Leonhard Walz, Dietmar Putzas, Carol Ottaway, A. V. Satish, Thomas Breuer, Joachim Boele, Jürgen Willaredt, Karl Peters, Reinhard Schwesinger, Frederick G. Bordwell, Eva-Maria Peters, Tim Dambacher, Hans Fritz
Publikováno v:
Liebigs Annalen. 1996:1055-1081
The syntheses and properties of novel, extremely strong uncharged polyaminophosphazene bases up to a high level of steric hindrance are described. Most of the systems were readily prepared in up to molar quantities and conveniently recovered from the
Publikováno v:
Zeitschrift für Naturforschung B. 50:47-50
Single crystals of Hg3CrO6 have been prepared by high pressure techniques (3600 bar oxygen, 600 °C). Hg3CrO6 crystallizes with trigonal symmetry, space group D6 3—P3212, a = 7.137(1), c = 10.017(2) Å, Z = 3. Nearly linear O—Hg—O dumb-bells ar
Publikováno v:
Journal of Alloys and Compounds. 216:105-112
Single crystals of Ba 3 Al 2 O 6 (1) and Ba 2.33 Ca 0.67 Al 2 O 6 (2) could be obtained by reacting the alkaline earth metal carbonates with Al 2 O 3 at 1500 °C and their crystal structures were determined using using-crystal X-ray diffractometry da
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 209:418-421
Single crystals of Sr1−x Ca x CuO2 with x = 0–0.573 have been grown by a modified Bi2O3 flux technique using different ratios of the earth alkali carbonates. Upto x = 0.573 the SrCuO2 structure type was found. The changes of the lattice constants
Publikováno v:
ChemInform. 22
La 0,515 Ca 0,485 Ba 2 Cu 2,36 Al 0,64 O 6,78 cristallise dans P4/mmm avec a=3,908, c=11,647 A, Z=1; affinement jusqu'a R=0,030. Le compose cristallise dans une variante de la structure YBa 2 Cu 3 O 7−x avec des atomes La et Ca sur les sites Y et u
Autor:
Wieslaw Wojnowski, D. Hahnfeld, Z. Pawelec, Leonhard Walz, Peter Paetzold, Ulli Englert, B. Dreczewski
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 26
Autor:
Ulli Englert, Wieslaw Wojnowski, Leonhard Walz, Detlef Hahnfeld, Zbigniew Pawelec, Boguslaw Dreczewski, Peter Paetzold
Publikováno v:
Chemische Berichte. 125:1073-1078
Addition of Silylenes to Iminoboranes[1] Photolytically generated silylenes SiMe2 and SiMes2 are treated with iminoboranes XBNtBu [X = tBu, Me3Si(tBu)N, iPr2N: 1a–c]. The products from SiMe2 and 1a are the four-and six-membered rings [–B(tBu)=N(t
Autor:
Steven E. Bottle, Eva Maria Peters, Thomas Kammel, Hans Georg von Schnering, Waldemar Adam, Karl Peters, Leonhard Walz, Ralf Finzel
Publikováno v:
The Journal of Organic Chemistry. 57:982-988
Autor:
Helmut Werner, Leonhard Walz, Andreas Hampp, Eva Maria Peters, Karl Peters, Hans Georg von Schnering
Publikováno v:
Zeitschrift für Naturforschung B. 45:1548-1558
Square-planar rhodium(I) complexes [RhCl(iPr2PC2H4Y)2] (8, 9) containing one chelating and one P-bonded monodentate phosphine ligand are prepared from [RhCl(C8H14)2]2 (7) and the new functionalized phosphines iPr2PC2H4Y (5,6). Reaction of 9 (Y = NMe2