Primäre und sekundäre Ethyl-und i-Propylsulfoniumsalze sowie Kristallstruktur von i-C3H7SH2+SbF6- [1]

1996 ◽  
Vol 51 (2) ◽  
pp. 277-285
Author(s):  
Rolf Minkwitz ◽  
Ulrike Lohmann ◽  
Hans Preut
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Bond Distance ◽  
Crystal Structure Analysis ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Spectroscopic Methods ◽  
Sulfonium Salt ◽  
Space Group

Abstract The synthesis of salts of the type RnSH3-n+MF6- (R = C2H5, i-C3H7; n = 1, 2; M = As, Sb) by protonation of the corresponding thiols and sulfides in the superacid systems HF/MF5 is reported. The salts have been characterized by vibrational and NMR spectroscopic methods. Isopropylsulfonium hexafluoroantimonate is the first known example of a sulfonium salt, for which a SH bond distance has been determined by a crystal structure analysis, i-C3H7SH2+SbF6- crystallizes in the monoclinic space group P21/m with a = 568.0(4), b = 801.1(6), c = 1019.7(8) pm, β = 82.63(6) °, with two formula units per unit cell.

Darstellung und Charakterisierung der Carbosilazane Bis[tris(methylamino)silyl]methan und Bis[tris(phenylamino)silyl]methan/Preparation and Characterization of the Carbosilazanes Bis[tris(methylamino)silyl]methane and B is[tris(phenylamino)silyl]m ethane

1997 ◽  
Vol 52 (6) ◽  
pp. 707-710
Author(s):  
M. Jansen ◽  
S. Bzik
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Unit Cell Parameters ◽  
Space Group ◽  
Cell Parameters

Bis[tris(methylamino)silyl]methane (1) and bis[tris(phenylamino)silyl]methane (2) have been synthesized as potential precursors of porous oxygen-free solids by the reaction of bis(trichlorsilyl)methane with methylamine and with lithiated aniline, respectively. Compound 2 was characterized by a crystal structure analysis. It crystallizes in the monoclinic space group P 21 ,/c with the unit cell parameters a= 10.963(2),b= 17.801(2), c = 17.557(2) Å, β = 97.96(2)° and Z = 4 (R1, = 4,4 %, wR2 = 9,8 %, 5950 independent reflections).

Cyclisierung von Amidoximen mit Oxybis(diphenylboran) / Cyclization of Amidoximes with Oxybis(diphenylborane)

1991 ◽  
Vol 46 (9) ◽  
pp. 1219-1222 ◽  
Author(s):  
Hans Möhrle ◽  
Karin Bluhme-Hensen ◽  
Birgit Middelhauve ◽  
Dietrich Mootz ◽  
Hartmut Wunderlich
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Structure Analysis ◽  
Heterocyclic Ring ◽  
Crystal Structure Analysis ◽  
Monoclinic Space Group ◽  
Space Group ◽  
Bifurcated Hydrogen Bond ◽  
Boron Heterocycles

Substituted amidoximes when reacted with oxybis(diphenylborane) do not yield ester chelates as main products but boron heterocycles. The compound obtained from p-toluamidoxime was found by crystal structure analysis to be 2-phenyl-4-(4-methylphenyl)-2,3-dihydro-1,3,5,2-oxadiazaborol (9). The conformation of the molecule is determined by angles of 29.1 and 24.4° between the planes of adjacent rings. Except N–O all bonds in the heterocyclic ring contain significant π character. Molecules are linked to chains by a weak bifurcated hydrogen bond. 9 crystallizes with the monoclinic space group P21/c, Ζ = 4, a = 5.574(2), b = 18.274(4), c = 12.754(4) Å, β = 106.41(2)°. Refinement of 227 parameters using 1709 observed reflections converged at R = 0.037.

Notizen: Zur Reaktion von [(η3-C4H7)PdCl]2 mit Se(SiMe3)2 Die Kristallstruktur von [(η3-C4H7)6Pd6Se3] / Reaction of [(η3-C4H7)PdCl]2 with Se(SiMe3)2 The Crystal Structure of [(η3-C4H7)6Pd6Se3]

1988 ◽  
Vol 43 (5) ◽  
pp. 634-636 ◽  
Author(s):  
Dieter Fenske ◽  
Achim Hollnagel ◽  
Kurt Merzweiler
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Unit Cell ◽  
Space Group ◽  
X Ray ◽  
Lattice Constants ◽  
Trigonal Prismatic

[(η3-C4H7)PdCl]2 reacts with Se(SiMe3)2 to form [(η3-C4H7)6Pd6Se3] (1). 1 has been characterized by X-ray crystal structure analysis. It contains a distorted trigonal prismatic Pd6-cluster. Three faces of the Pd-prism are occupied by μ4-Se ligands. 1 crystallizes in the space group Pnma with 4 formula units per unit cell. The lattice constants at 200 K are: a = 1175.1(8), b = 1611.4(12), c = 1720.3(12) pm.

Über hexakoordinierte gemischte Halogeno-Anionen des Te(IV): Kristallographische und Raman-spektroskopische Untersuchungen an Rb2TeBr3,5Cl2,5 / On Hexacoordinated Mixed Halogeno Anions of Te(IV): Crystallographic and Raman Spectroscopic Investigation of Rb2TeBr3,5Cl2,5

1988 ◽  
Vol 43 (5) ◽  
pp. 557-560 ◽  
Author(s):  
Walter Abriel ◽  
Hartmut Ehrhardt
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Title Compound ◽  
Spectroscopic Investigation ◽  
Random Distribution ◽  
Crystal Structure Analysis ◽  
Spectroscopic Methods ◽  
Space Group ◽  
Type Space ◽  
Raman Spectroscopic

Abstract The title compound contains the anions [TeBr3Cl3]2- and [TeBr4Cl2]2- in a 1:1 ratio. The corresponding point symmetries, detected by Raman spectroscopic methods, are 3 m and 4/mmm, respectively. The crystal structure analysis exhibits a random distribution of these anions: K2PtCl6- type, space group Fm3̅m with a = 10.4602(5) Å and Z = 4, final R = 0.036 from 178 F0 (MoKα).

Methansulfinylchlorid-Lewissäure-Addukte CH3S(Cl)OMF5 (M = As, Sb) und Kristallstruktur von CH3S(Cl)OSbCl5 [1] / Methanesulfinylchloride Lewis Acid Adducts CH3S(Cl)OMF5 (M = As, Sb) and Crystal Structure of CH3S(Cl)OSbCl5 [1]

1996 ◽  
Vol 51 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Rolf Minkwitz ◽  
Ulrike Lohmann ◽  
Hans Preut
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
Lewis Acid ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Space Group ◽  
New Compounds ◽  
Lewis Acid Adducts

Abstract CH3S(0)C1 reacts in HF as solvent with MF5 (M = As, Sb) to give products CH3S(Cl)OMF5 (M = As, Sb). The new compounds are stable below 253 K and were charac­ terized by Raman and NMR spectroscopy.In addition, the crystal structure of CH3S(Cl)OSbCl5 has been determinated. The complex crystallizes in the monoclinic space group P21/n with a = 644.3(5), b = 1905.9(14), c = 900.0(7) pm, β = 99.27(6)° with four formula units per unit cell.

Kristallstruktur und Konstitution des Perchlorbenzocyclobutens (β-C8Cl8)

1974 ◽  
Vol 29 (5) ◽  
pp. 831
Author(s):  
J. Haase ◽  
P. Widmann
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Spectroscopic Measurements ◽  
Space Group

Abstract The crystal structure of perchlorobenzocyclobutene (β-C8Cl8) has been investigated and solved by means of the unusual Patterson projection along the axis of twinning, by which the space group had been determined. As a result of the crystal structure analysis the constitution of the molecule, derived by J. Brandmüller and E. Ziegler from spectroscopic measurements, has been found to be true.

Anionische Komplexe [Mo2(O2CPh)4X2]2⊖ mit X = N3, Cl, Br. Die Kristallstruktur von (PPh4)2[Mo2(O2CPh)4Cl2] · 2CH2Cl2 / Anionic Complexes [Mo2(O2C-Ph)4X2]2⊖ with X = N3, Cl, Br. The Crystal Structure of (PPh4)2[Mo2(O2C-Ph)4Cl2] · 2CH2Cl2

1985 ◽  
Vol 40 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Kay Jansen ◽  
Kurt Dehnicke ◽  
Dieter Fenske
Keyword(s):  
Crystal Structure ◽  
Ir Spectra ◽  
Diffraction Data ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Lattice Constants ◽  
Anionic Complexes

The syntheses and IR spectra of the complexes [Mo2(O2C-Ph)4X2]2⊖ with X = N3, CI, Br and the counter ion PPh4⊕ are reported. The azido and the bromo complexes are obtained from a solution of [Mo2(O2CPh)4] with PPh4N3 in pyridine or by reaction with PPh4Br in CH2Br2, respectively. When (PPh4)2[Mo2(O2CPh)4(N3)2] is dissolved in CH2Cl2, nitrogen is evolved and the complex with X = CI is obtained. The crystal structure of (PPh4)2[Mo2(O2CPh)4Cl2] · 2CH2Cl2 was determined from X-ray diffraction data (5676 observed independent reflexions, R = 0.042). It crystallizes in the monoclinic space group P21/n with four formula units per unit cell; the lattice constants are a = 1549, b = 1400, c = 1648 pm, β = 94.6°. The centrosymmetric [Mo2(O2CPh)4Cl2]2⊖ ion has a rather short Mo-Mo bond of 213 pm, whereas the MoCl bonds are very long (288 pm)

Re: Crystal Structures of Pyroaurite and Sjögrenite

1994 ◽  
Vol 38 ◽  
pp. 749-755 ◽  
Author(s):  
A. Olowe
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Metallic Ions ◽  
Chemical Formula ◽  
Metal Hydroxides ◽  
Space Group ◽  
Previous Discussion ◽  
Positively Charged

Abstract Pyroaurite and sjogrenite belong to the group of sandwiched lamellar metal hydroxides which have a fixed metallic ions MII:MIII ratio for a particular class. Their crystal structure consists of positively charged metal hydroxide blocks intercalated with negatively charged interlayers. The atomic positions for the interlayer are definite for a particular class. The exact chemical formula of the pyroaurite class is determined from crystal structure analysis to be MII 6MIII 2(OH)16-CO3-4.5H2O; it crystallizes in the space group Rm with a = 12.4376 Å and c = 23.4126 Å. Sjogrenite, MII 6 MIII 2(OH)16-CO3-4H2O crystallizes in the space group P63/mcm. The crystallogiraphy and structural relationship between these classes are discussed. Previous discussion on these compounds did not give any conclusion on the exact chemical formula and the atomic positions.

Über die Darstellung der (Chlorthio)sulfoniumsalze [(CH3)2SSSCl]+SbF6-, [(CH3)2SSCl]+SbF6- und des isomeren [(CH3)(Cl)S – SCH3]+SbCl6- / On the Preparation of the (Chlorothio)sulfonium Salts [(CH3)2SSSCl]+SbF6-, [(CH3)2SSCl]+SbF6- and the Isomer [(CH3)(Cl)S–SCH3]+SbCl6-

1990 ◽  
Vol 45 (12) ◽  
pp. 1637-1642 ◽  
Author(s):  
Rolf Minkwitz ◽  
Andreas Kornath ◽  
Renate Krause ◽  
Hans Preut
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Molar Ratio ◽  
Sulfonium Salts ◽  
Space Group

The preparation of the stable compounds [(CH3)2SSCl]+SbF6- and [(CH3)2,SSSCl]+SbF6- from [(CH3)2SH]+SbF6- and SCl2 and S2Cl2, resp., is reported.The isomer [(CH3)(Cl)S–SCH3]+SbCl6- is prepared from [SCl3]+SbCl6- and CH3SH in the molar ratio 1:2. For this salt a crystal structure analysis was carried out (Space group P212121, Z = 4, a = 750.1(4), b = 1133.7(3), c = 1614.8(3) pm).

Notizen: Eine neue bicyclische Zinn-Selen-Verbindung. Synthese und Kristallstruktur von [{Cp(CO)2Fe}3ClSn3Se4] / A New Bicyclic Tin Selenium Compound. Synthesis and Crystal Structure of [{Cp(CO)2Fe}3ClSn3Se4]

1993 ◽  
Vol 48 (7) ◽  
pp. 1009-1012 ◽  
Author(s):  
Kurt Merzweiler ◽  
Harald Kraus
Keyword(s):  
Crystal Structure ◽  
Structure Determination ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Synthesis And Crystal Structure ◽  
Selenium Compound ◽  
Space Group ◽  
X Ray ◽  
Lattice Constants ◽  
Compound Synthesis

[{Cp(CO)2Fe}SnCl3] reacts with Na2Se in THF to form the compound [{Cp(CO)2Fe}3ClSn3Se4] 1. 1 crystallizes in the monoclinic space group P21/n with 4 formula units per unit cell. The lattice constants are α = 1435.2(7), b = 1124.4(4), c = 1972.7(12) pm, β = 94.59(4)°. According to the X-ray structure determination 1 contains a bicyclic Sn3Se4 framework.

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