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  • Inorganic Chemistry  (75)
  • crystal structure  (4)
  • Antimony(III)fluoride,(Sb2F5+)(Sb3F72+)(SbF6-)3  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 562 (1988), S. 42-48 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dibromomethylsulfoniumsalts  -  Preparation and Crystal StructureThe salts CH3SBr2+A- (A- = SbCl6-, AsF6-) were prepared by various routes and characterized by their Ramanspectra. CH3SBr2+AsF6- crystallized in the monoclinic space group P21/c with a = 770,5(4) pm, b = 942,4(12) pm, c = 1329,3(14) pm, β = 100,28(6)°, Z = 4. Distances and bond angles in the cation are as expected.
    Notes: Es wurden die Salze CH3SBr2+A- (A- = SbCl6-, AsF6-) auf unterschiedlichen Wegen dargestellt und durch ihre Ramanspektren charakterisiert. CH3SBr2+AsF6- kristallisiert in der monoklinen Raumgruppe P21/c mit a = 770,5(4) pm, b = 942,4(12) pm, c = 1329,3(14) pm, β = 100,28(6)°, Z = 4. Die Abstände und Winkel im Kation entsprechen den Erwartungen.
    Additional Material: 2 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 607 (1992), S. 96-100 
    ISSN: 0044-2313
    Keywords: Cycloheptasulfur cations ; preparation ; ir., n.m.r., RA, m.s. spectra ; stabilities ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung der Pesudohalogenheptaschwefel(+1)-hexaflourmatellate S7X+MF-6 (X = CN, OCN, SCN, SeCN; M = As, Sb)Es wird über die Darstellung und spektroskopische Charakterisierung von S7X+MF-6 (X = CN, OCN, SCN, SeCN; M = As, Sb) berichtet. Die Verbindungen werden in Analogie zur Darstellung der Halogencycloheptaschwefel(+1)-Kationen aus S2+8(MF-6)2 und Alkalimetallpseudohalogeniden in Schwefeldioxid als Lösungsmittel gebildet. Ihre thermische Stabilität nimmt mit wachsender „Pearson Härte“ der Pseudohalogenliganden ab.
    Notes: The preparation and spectroscopic characterization of S7X+MF-6 (X = CN, OCN, SCN, SeCN; M = As, Sb) is reported. The new compounds are formed in analogy to the preparation of halidocycloheptrasulfur(+1) cations from S2+8(MF-6)2 and alkali pseudohalides in So2 as solvent. Their thermal stabilities decrease with the increasing Pearson hardness of the pseudohalide ligands.
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  • 3
    ISSN: 0044-2313
    Keywords: AsFCl3+ AsF6- ; preparation ; vibrational analysis ; 19F-NMR spectroscopy ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Spectroscopic Characterization of Fluorotrichloroarsonium Hexafluoroarsenate, AsFCl3+AsF6-The mixed halide pniktide cation AsFCl3+ is prepared by oxidative fluorination of AsCl3 with XeF+ AsF6-. AsFCl3+ AsF6- is characterized by IR, Raman, and 19F-NMR spectroscopy.
    Notes: Durch oxidative Fluorierung von AsCl3 mit XeF+ AsF6- wird das gemischt-halogenierte Pniktid-Kation AsFCl3+ hergestellt. AsFCl3+ AsF6- wird durch IR-, Raman- und 19F-NMR-Spektren charakterisiert.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 612 (1992), S. 40-44 
    ISSN: 0044-2313
    Keywords: Fluorophosphonium salts ; preparation ; vibrational spectra ; NMR spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Spectroscopic Characterization of the Fluorophosphonium Salts X2FPSCH3+MF6- (X = Br, Cl; M = As, Sb) and XF2PSCH3+SbF6- (X = Br, Cl, F)The preparation of the fluorophosphonium salts X2FPSCH3+MF6- (X = Br, Cl; M = As, Sb) and XF2PSCH3+SbF6- (X = Br, Cl, F) by methylation of the corresponding thiophosphorylhalides in the system CH3F/SO2/MF5 (M = As, Sb) is reported. The new salts are characterized by their vibrational and NMR spectra.
    Notes: Es wird über die Darstellung der Fluorphosphoniumsalze X2FPSCH3+MF6- (X = Br, Cl; M = As, Sb) and XF2PSCH3+SbF6- (X = Br, Cl, F) durch oxidative Methylierung der korrespondierenden Thiophosphorylhalogenide mit dem System CH3F/SO2/MF5 (M = As, Sb) berichtet. Die Salze werden durch ihre Schwingungs- und NMR-Spektren charakterisiert.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 612 (1992), S. 35-39 
    ISSN: 0044-2313
    Keywords: CF3S(O)F2 +SbF6- ; (CF3)2SOXeP+SbF6- ; preparation ; vibrational spectra ; NMR spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die Reaktion von XeF+SbF6- mit Sulfuranen; Präparation von CF3S(O)F2+SbF6- und (CF3)2SOXeF+SbF6-CF3S(O)F, (CF3)2SO, CF3SF3, (CF3)2SF2, und SF4 reagieren in unterschiedlicher Weise mit XeF+MF6- (M=As, Sb). Eine oxidative Fluorierung wird beobachtet beim CF3S(O)F unter Bildung des Persulfoniumsalzes CF3S(O)F2+SbF6-, während mit (CF3)2SO ein einfaches Xenon-enthaltendes Additionsprodukt (CF3)2SOXeF+SbF6- isoliert werden kann. Im Gegensatz dazu führt der Lewis-saure Charakter des XeF+ -Kations gegenüber (CF3)nSF4-n (n = 0 - 2) zu den entsprechenden Fluorsulfoniumsalzen (CF3)nSF3-n +MF6- (M=As. Sb) und XeF2.
    Notes: CF3S(O)F, (CF3)2SO, CF3SF3, (CF3)2SF2, and SF4 react in different manner with XeF+MF6- (M=As, Sb). An oxidative fluorination is observed by CF3S(O)F forming the persulfonium salt CF3S(O)F2+SbF6-, whereas by (CF3)2SO a simple addition product containing xenon can be isolated in form of the sulfonium salt (CF3)2SOXeF+SbF6-. On the contrary, the Lewis-acidic character of the XeF+-cation predominates against (CF3)nSF4-n (n = 0 - 2) leading to the corresponding fluorosulfonium salts (CF3)nSF3-n +MF6- (M=As, Sb) and XeF2.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 612 (1992), S. 51-55 
    ISSN: 0044-2313
    Keywords: Pentabromine(1+) cation ; local density functional calculations ; vibrational spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Das Pentabrom(1+)- Kation, Br5+. Berechnungen mit der Dichtefunktional-Methode und SchwingungsspektrenFür das Br5+-Kation werden mit der Dichtefunktional-Methode Geometrie, Schwingungsspektren und Landungsverteilung berechnet. Das freie Ion hat in der gauche-Konfiguration die niedrigste Energie. Die drei mittleren Br-Atome bilden danach einen Winkel von 168,6° und der Diederwinkel der beiden terminalen Br-Atome beträgt 82°. Diese Konfiguration steht damit im Gegensatz zu der planaren trans-Konfiguration mit C2h-Symmetrie, die für Br5+ im Br5+ MF6- (M = As, Sb) durch Röntgenbeugung gefunden wurden. Die geringe Energiedifferenz von 1,2 kcal mol-1 zwischen der gauche- und trans-Konfiguration, verbunden mit Kristallpackungseffekten, könnten für die trans-Konfiguration von Br5+ im festen Br5+MF6- verantwortlich sein.Um den wahrscheinlichsten der bereits publizierten sich stark unterscheidenden Frequenzsätze, zu bestimmen, wurden die berechneten Schwingungsspektren herangezogen.Im Gegensatz zu früheren STO-3G-Rechnungen für Cl5+, können mit diesen LDF-Rechnungen für Br5+ und Cl5+ Ladungsverteilungen wiedergegeben werden, die mit einem früher vorgeschlagenen einfachen „valencebond-model“ für Pentahalogen(1+)-Kationen übereinstimmen.
    Notes: The geometry, vibrational spectra and charge distribution of Br5+ were calculated by the use of the local density functional (LDF) method. The results show that for free Br5+ the lowest energy configuration is a skew structure with the three central Br atoms forming an angle of 168.6° und the two terminal Br atoms exhibiting a dihedral angle of 82°. This skew configuration is in contrast to the planar trans configuration of C2h symmetry found for Br5+ in solid Br5+MF6- (M = As, Sb). The small energy difference of 1.2 kcal mol-1 between the skew and the trans configurations, combined with crystal packing effects, can account for the planar trans configuration of Br5+ in solid Br5+MF6-. The computed vibrational spectra were used to select the most likely set from three sets of previously published and widely diverging spectra. Contrary to previous STO-3G calculations for Cl5+, the present LDF calculations for Br5+ and Cl5+ result in charge distributions which agree with a previously proposed simple valence bond model for pentahalogen(1+) cations.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 583-586 
    ISSN: 0044-2313
    Keywords: Sulfenium Salts ; Preparation ; Vibrational Spectra ; NMR-Spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Synthesis of the Dichloromethylene-halogenosulfenium Salts Cl2CSCl+ AsF6- and Cl2CSBr+ AsF6-The sulfenium salts Cl2CSCl+ AsF6- and Cl2CSBr+ AsF6- are synthesized by oxidative halogenation of thiophosgene, Cl2CS with X2/AsF5 (X = Cl, Br) at 195 K and are characterized by vibrational as well as NMR spectroscopy.
    Notes: Die Sulfeniumsalze Cl2CSCl+ AsF6- und Cl2CSBr+ AsF6- werden aus Thiophosgen Cl2CS durch oxidative Halogenierung mit X2/AsF5 (X = Cl, Br) bei 195 K dargestellt und schwingungs- sowie NMR-spektroskopisch charakterisiert.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 353-356 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Gas Phase Structures of CF3NBr2 and (CF3)2NBrThe gas phase structures of the trifluoromethyl bromoamines CF3NBr2 and (CF3)2NBr were determined by electron diffraction. CF3NBr2: N—Br = 188.0(3), N—C = 148.1(13) pm, BrNBr = 111.1(6)° and BrNC = 107.3(8)°; (CF3)2NBr: N—Br = 186.9(4), N—C = 144.9(7) pm, BrNC = 114.9(9)° and CNC = 118.6(24)°. The results for these bromoamines are compared to those for the analogous fluoro and chloroamines.
    Notes: Die Gasphasenstrukturen der trifluormethylierten Bromamine CF3NBr2 und (CF3)2NBr wurden durch Elektronenbeugung bestimmt. CF3NBr2: N—Br = 188,0(3), N—C = 148,1(13) pm, BrNBr = 111,1(6)° und BrNC = 107,3(8)°; (CF3)2NBr: N—Br = 186,9(4), N—C = 144,9(7) pm, BrNC = 114,9(9)° und CNC = 118,6(24)°. Diese Werte für die Bromamine werden mit denen für die analogen Fluor- und Chloramine verglichen.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 509-513 
    ISSN: 0044-2313
    Keywords: (difluoro)methylphosphine ; (difluoro)methylphosphonium salts ; preparation ; single crystall X-ray structure ; vibrational and NMR spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Crystal Structures of CH3PF2H+AsF6- and CH3PF2H+SbF6- and a simple Method for Preparation of CH3PF2A simple method for preparation of CH3PF2 from CH3PCl2 is reported. The phosphonium salts CH3PF2H+MF6- are obtained by the reaction of CH3PCl2 with superacidic systems HF/MF5 (M = As, Sb). CH3PF2H+SbF6- crystallizes in the space group P1 with a = 548.4(4) pm, b = 695.5(8) pm, c = 960.2(9) pm, α = 94.68(5)°, β = 97.19(6)°, γ = 94.41(6)° and Z = 2. CH3PF2H+SbF6- crystallizes in P1 with a = 554.3(3), b = 724.2(4), c = 970.4(5), α = 94.73(4)°, β = 96.14(5)°, γ = 95.30(4)°.
    Notes: Es wird über eine einfache Darstellung von CH3PF2 aus CH3PCl2 berichtet, welches in den supersauren Systemen HF/MF5 (M = As, Sb) zu den Phosphoniumsalzen CH3PF2H+MF6- protoniert wird. CH3PF2H+AsF6- kristallisiert in der Raumgruppe P1 mit a = 548,4(4) pm, b = 695,5(8) pm, c = 960,2(9) pm, α = 94,68(5)°, β = 97,19(6)°, γ = 94,41(6)° und Z = 2, das isostrukturelle CH3PF2H+SbF6- mit a = 554,3(3), b = 724,2(4), c = 970,4(5), α = 94,73(4)°, β = 96,14(5)°, γ = 95,30(4)°.
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  • 10
    ISSN: 0044-2313
    Keywords: Bis(triphenylsilyl)sulfanes ; preparation ; single crystal X-ray structure ; vibrational spectra ; NMR spectra ; UV-VIS spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Preparation of Bis(triphenylsilyl)sulfanes (C6H5)3Si—Sx—Si(C6H5)3 (x = 3, 4) and the Crystal Structure of (C6H5)3Si—S4—Si(C6H5)3The preparation of the bis(triphenylsilyl)sulfanes Ph3Si—Sx—SiPh3 (x = 3, 4) from Ph3SiSNa and SCl2 resp. S2Cl2 is reported. They are characterized by vibrational, NMR and UV-VIS spectroscopic measurements. Ph3Si—S4—SiPh3 crystallizes in space group P1 with a = 943.6(6) pm, b = 945.7(5) pm, c = 1 881.7(12) pm, α = 82.11(5)°, β = 78.95(5)°, γ = 83.15(5)° and Z = 2.
    Notes: Es wird über die Darstellung der Bis(triphenylsilyl)-sulfane Ph3Si—Sx—SiPh3 (x = 3, 4) aus Ph3SiSNa und SCl2 bzw. S2Cl2 berichtet. Ihre Charakterisierung erfolgt schwingungs-, NMR-, und UV-VIS-spektroskopisch.Ph3Si—S4—SiPh3 kristallisiert in der Raumgruppe P1 mit a = 943,6(6) pm, b = 945,7(5) pm, c = 1 881,7(12) pm, α = 82,11(5)°, β = 78,95(5)°, γ = 83,15(5)° und Z = 2.
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