Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Henning Henke"'
Autor:
Henning Henke
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 228:63-68
At ambient conditions (NO)2SnCl6 is isostructural with the corresponding titanium and vanadium salts which all crystallize in space group P4/mnc (Z = 2) and display a fourfold disorder of the NO+ ions. Below T c = 229 K the diffraction pattern splits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2667fd0e647338639b1d3e105755c506
https://doi.org/10.1524/zkri.2013.1574
https://doi.org/10.1524/zkri.2013.1574
Autor:
Henning Henke
Publikováno v:
Zeitschrift für Kristallographie. 225:344-348
NO[NbCl6] crystallizes in the noncentrosym metric space group P212121 with a = 6.630(1), b = 6.746(1), c = 39.23(1) Å at 150 K and Z = 8; i.e. there are two formu la units in the asymmetric unit. X-ray data have been re corded by means of an imaging
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f4f475760182d6ac17d7715d31ffe23
https://doi.org/10.1524/zkri.2010.1252
https://doi.org/10.1524/zkri.2010.1252
Autor:
Peter Mayer, Henning Henke
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 225:217-224
The NbCl5 adducts of M[NbCl6] · NbCl5 with M = K or NO are structurally related via their common super group Fmmm. K[NbCl6] · NbCl5 crys tallizes in the triclinic space group C-1 with a = 9.898(1), b = 9.443(1), c = 17.370(1) Å, α = 89.57(1), β
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8b7e26d02f90c856552e3aeefde53fe
https://doi.org/10.1524/zkri.2010.1212
https://doi.org/10.1524/zkri.2010.1212
Autor:
Henning Henke
Publikováno v:
Zeitschrift für Kristallographie. 222:477-486
X-ray powder measurements were used to investigate the phase transitions and crystal structures of K2NbCl6 and Rb2NbCl6. In both cases, the metrical changes of the unit cell are accompanied by a compressive distortion of the NbCl6 2− groups from O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73301e3e857307b9281f8c65df6d3bc1
https://doi.org/10.1524/zkri.2007.222.9.477
https://doi.org/10.1524/zkri.2007.222.9.477
Autor:
Henning Henke
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 218:617-625
As in the case of (NO)2TiCl6 the octahedral-shaped crystals of dinitrosonium hexachlorovanadate(IV) are tetragonal at room temperature with space group P4/mnc and Z = 2. An X-ray structure determination at 248 K yields lattice parameters of a = 667.8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f89c21ada4874d4ff63f3d0977f9ecb
https://doi.org/10.1524/zkri.218.9.617.20674
https://doi.org/10.1524/zkri.218.9.617.20674
Autor:
Henning Henke
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 217:474-483
Solid (NO)2TiCl6 undergoes two phase transitions closely related to the order-disorder behaviour of the NO+ species present in this salt-like compound. Starting from ambient conditions the sequence of space groups is P4/mnc → C2/c → P21/n when th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4be7323e98333117f12459ab8e6478a1
https://doi.org/10.1524/zkri.217.9.474.22880
https://doi.org/10.1524/zkri.217.9.474.22880
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 217:119-126
K4[Fe(CN)5NO2]⋅KNO2⋅H2O crystallizes in the non-centrosymmetric orthorhombic space group Bb21 m (no. 36) with a = 2698.2(3), b = 1415.7(1), c = 849.6(1) pm and Z = 8 at 291 K. Due to a high degree of pseudosymmetry the deviations from centrosymme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::272c3afa76c3c96f9036a2c87fff8722
https://doi.org/10.1524/zkri.217.3.119.20648
https://doi.org/10.1524/zkri.217.3.119.20648
Publikováno v:
Chemistry - A European Journal. 6:2032-2043
Mannich-type reactions are powerful methods for the efficient synthesis of β-amino carbonyl compounds that are valuable intermediates for the construction of natural products, β-peptides, and peptidomimetics. For the efficient steric steering of Ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b87dc196221ecdd4759ca5909828d506
https://doi.org/10.1002/1521-3765(20000602)6:11<2032::aid-chem2032>3.0.co
https://doi.org/10.1002/1521-3765(20000602)6:11<2032::aid-chem2032>3.0.co
Publikováno v:
The Journal of Organic Chemistry. 63:1086-1089
Ozonolysis of ethyl vinyl ether (7a) in the presence of the O-methylated oxime of cyclohexanone (8) afforded N-methoxy-1,2-dioxa-4-azaspiro[4.5]decane (9a), and ozonolyses of the O-methylated dioximes of 1,4- and 1,5-dicarbonyl compounds (10a−e) af
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d5e0f062a90436fcc305bca632e5eb2
https://doi.org/10.1021/jo971469o
https://doi.org/10.1021/jo971469o
Publikováno v:
Chemistry - A European Journal. 2:1566-1571
Aromatic and aliphatic Schiff bases of tryptamine react with Fmoc- or phthaloyl-protected amino acid chlorides to form N-acyliminium intermediates, which, in the presence of titanium alkoxides at room temperature, undergo Pictet–Spengler reactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b08b9c96212b6ebe26a79d4530df1dd
https://doi.org/10.1002/chem.19960021215
https://doi.org/10.1002/chem.19960021215