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  • Inorganic Chemistry
  • 1995-1999  (94)
  • 1950-1954  (7)
  • 1930-1934  (69)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 845-852 
    ISSN: 0044-2313
    Keywords: Nickel orthoperiodate ; i.r., Raman spectra ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: NiH3IO6 · 6 H2O  -  Crystal Structures and Vibrational SpectraThe crystal structure of NiH3IO6 · 6 H2O has been determined by X-ray single-crystal diffraction (Pc, Z = 2, a = 516.74(9), b = 981.5(2), c = 1052.5(2) pm, β = 116.496(8)°) on the basis of 4169 unique reflections (R = 1.96%). The structure is built up of distorted Ni(H2O)62+ and H3IO62- octahedra linked by hydrogen bonding. IR and Raman spectra of both the title compound and isostructural MgH3IO6 · 6 H2O as well as of deuterated specimens are given. There are up to 14 different OH(OD) modes in the spectra of isotopically dilute samples due to the 15 different hydrogen positions of the structure. The internal modes of the meridional H3IO62- ions (pseudo C2v symmetry) are discussed with respect to that double T-shaped entity, which gives rise to only two instead of 3I—O, I—O(H), and OH stretches in the IR and Raman spectra, i.e. the same as for facial (C3v) structured ions.
    Notes: Die Kristallstruktur (Pc, Z = 2) von NiH3IO6 · 6 H2O wurde mittels Röntgen-Einkristallmessungen auf der Basis von 4169 symmetrieunabhängigen Reflexen bestimmt (R = 1,96%). IR- und Raman-Spektren von NiH3IO6 · 6 H2O und der isotypen Verbindung MgH3IO6 · 6 H2O sowie von deuterierten Präparaten werden mitgeteilt. Die Spektren isotypenverdünnter Proben zeigen bis zu 14 OH(OD)-Streckschwingungen entsprechend den 15 verschiedenen Wasserstoff-Positionen der Struktur. Die meridionalen H3IO62--Ionen (Pseudosymmetrie C2v) besitzen wegen der T-förmigen Anordnung der je 3 IO-und IOH-Gruppen nur je 2 IO-, IO(H)- und OH-Streckschwingungen in den IR- und Raman-Spektren und können daher schwingungsspektroskopisch nicht von H3IO62--Ionen mit facialer Struktur (C3v) unterschieden werden.
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  • 2
    ISSN: 0044-2313
    Keywords: Arylxenon trifluoromethanesulfonates ; electrophilic aromatic substitution ; xenontrifluoroacetate trifluoromethanesulfonate ; NMR spectra ; X-ray crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die direkte Synthese von Arylxenontrifluormethansulfonaten durch elektrophile SubstitutionBei der Reaktion von Xenonbis(trifluoracetat) mit Trifluormethansulfonsäure wird die neue, hochreaktive, unsymmetrische Xenon-Sauerstoff-Verbindung CF3COOXeOSO2CF3 erzeugt. Benzolderivate mit elektronenziehenden Substituenten wie F, CF3, Cl und NO2 werden von diesem Intermediat unter Bildung von Arylxenontrifluormethansulfonaten elektrophil angegriffen. Über diese Eintopfsynthese wurden Trifluormethansulfonate mit den Kationen [Xe(2,4,6-F3C6H2)]+, [Xe(2-F-5-NO2C6H3)]+, [Xe(2-F-5-CF3C6H3)]+ und [Xe(3,5-(CF3)2C6H3)]+ synthetisiert. Alle Verbindungen wurden durch ihre NMR-, Massen- und Schwingungsspektren charakterisiert.Zusätzlich wurden mehrere neue Arylxenontrifluormethansulfonate als Produkte der Umsetzungen von 1,3-F2C6H4 und weiteren desaktivierten Benzolen mit Xenon(trifluoracetat)trifluormethansulfonat anhand der 129Xe-NMR-Spektren identifiziert.Fluorsubstituenten in ortho-Position zu Xenon erhöhen signifikant die thermische Stabilität der Arylxenontrifluormethansulfonate.Die Molekülstruktur von [Xe(2,6-F2C6H3)][OSO2CF3] wurde durch eine Einkristallröntgenstrukturanalyse bestimmt. Die Arylxenoneinheit koordiniert schwach mit einem Sauerstoffatom des CF3SO3-Anions. Die Verbindung kristallisiert in der triklinen Raumgruppe mit a = 880.9(3) pm, b = 1093.9(5) pm, c = 1209.8(5) pm, α = 89.04(4)°, β = 74.23(3)°, γ = 86.03(3)°, Z = 4.
    Notes: The reaction of xenonbis(trifluoroacetate) and trifluoromethanesulfonic acid (triflic acid) gave the new, highly reactive unsymmetrical xenon-oxo species CF3COOXeOSO2CF3. Benzene derivates, containing electron withdrawing substituents such as -F, -CF3, -Cl or -NO2 were electrophilic attacked by this intermediate to yield arylxenon trifluoromethanesulfonates. Via this one-pot synthesis trifluoromethanesulfonates with the cations [Xe(2,4,6-F3C6H2)]+, [Xe(2-F-5-NO2C6H3)]+, [Xe(2-F-5-CF3C6H3)]+ and [Xe(3,5-(CF3)2C6H3)]+ were prepared. All compounds were characterized by their NMR, mass, and vibrational spectra.Additionally, several new arylxenon trifluoromethanesulfonates were detected by 129Xe-NMR spectroscopy as products of the reaction of 1,3-F2C6H4 and further deactivated benzenes with xenontrifluoroacetate trifluoromethane sulfonate.Fluoro substituents in ortho position to xenon significantly increase the thermal stability of the arylxenon trifluoromethanesulfonates obtained.The molecular structure of [Xe(2,6-F2C6H3)][OSO2CF3] was determined by single crystal diffraction methods. The arylxenon unit is weakly coordinated by one oxygen atom of the CF3SO3 anion. The salt crystallizes in the triclinic space group P1, a = 880.9(3) pm, b = 1093.9(5) pm, c = 1209.8(5) pm, α = 89.04(4)°, β = 74.23(3)°, γ = 86.03(3)°, Z = 4.
    Additional Material: 7 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1351-1357 
    ISSN: 0044-2313
    Keywords: Dimethylgallium-bis(trimethylsilyl)phosphane, X-ray structure, vibrational spectrum, force constants ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dimethylgallium-bis(trimethylsilyl)phosphane, Vibrational Spectrum, Force Constants, and X-Ray StructureDimeric dimethylgallium-bis(trimethylsilyl)phosphane, [Me2Ga—P(SiMe3)2]2, (Me = CH3) is synthesized from Me2GaCl and P(SiMe3)3 in hot toluene. The compound crystallizes in the triclinic space group P1 with the cell parameters a = 909.8(2), b = 960.5(2), c = 971.6(2) pm; α = 76.75(1)°, β = 80.35(1)°, γ = 63.94(1)° and Z = 1 (dimer). The Ga—P distances are 244.8 and 245.2 pm, the ring angles are 91.8° (Ga—P—Ga) and 88.2° (P—Ga—P), respectively. The vibrational spectrum (IR and Raman for the solid) has been measured and assigned; force constants calculations are carried out for the skeleton [C2Ga—P(SiC3)2]2 using Fleischhauers [26] PC-program.
    Notes: Dimeres Dimethylgallium-bis(trimethylsilyl)phosphan, [Me2Ga—P(SiMe3)2]2 (Me = CH3), wird aus Me2GaCl und P(SiMe3)3 in heißem Toluol synthetisiert. Die Verbindung kristallisiert in der triklinen Raumgruppe P1 mit den Gitterkonstanten a = 909,8(2), b = 960,5(2), c = 971,6(2) pm; α = 76,75(1)°, β = 80,35(1)°, γ = 63,94(1)° und Z = 1 (Dimer). Die Ga—P-Abstände des planaren Ga2P2-Gerüsts betragen 244,8 und 245,2 pm, die Ringwinkel 91,8° (Ga—P—Ga) bzw. 88,2° (P—Ga—P). Das Schwingungsspektrum (IR und Raman des Feststoffs) wurde aufgenommen und zugeordnet, für das Molekülskelett [C2Ga—P(SiC3)2]2 werden mit dem PC-Programm von Fleischhauer [26] Kraftkonstantenrechnungen durchgeführt.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1358-1364 
    ISSN: 0044-2313
    Keywords: Phosphorus tin heterocycles ; syntheses ; crystal structure ; NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure Analysis of (tBuP)4Sn(CH3)2 and (CH3)2Sn[(tBu)P—P(tBu)]2Sn(CH3)2The diphosphides K2[(tBu)P—(tBuP)2—P(tBu)] 7 or K2[(tBu)P—P(tBu)] 8 react with (CH3)2SnCl2 in a molar ratio of 1 : 1 to form the binary 5-membered ring system P4Sn 4 a and the 6-membered ring system Sn(P2)2Sn 5 a respectively. When (CH3)2SnCl2, however, is treated with 8 in a molar ratio of 2 : 1 the 4-membered ring system P3Sn 2 a is formed which includes the fragmentation of the intermediate K2[(CH3)2Sn ((tBu)P—P(tBu))2] 9. 4 a and 5 a could be obtained in a pure form and characterized NMR spectroscopically and by X-ray structure analyses; 2 a was identified only NMR spectroscopically.
    Notes: Die Diphosphide K2[(tBu)P—(tBuP)2—P(tBu)] 7 bzw. K2[(tBu)P—P(tBu)] 8 reagieren mit (CH3)2SnCl2 im Molverhältnis 1 : 1 zu dem binären Fünfringsystem P4Sn 4 a bzw. dem Sechsringsystem Sn(P2)2Sn 5 a. Wird jedoch (CH3)2SnCl2 mit zwei Äquivalenten 8 umgesetzt, so erhält man nach einer Fragmentierung des Intermediats K2[(CH3)2Sn ((tBu)P—P(tBu))2] 9 das binäre Vierringsystem P3Sn 2 a. 4 a und 5 a konnten in reiner Form isoliert, NMR-spektroskopisch und durch Röntgenstrukturanalysen charakterisiert werden; 2 a konnte bisher nur NMR-spektroskopisch identifiziert werden.
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  • 5
    ISSN: 0044-2313
    Keywords: Sn(P2)3Sn cage system ; NMR data, crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of Hexa-t-butyl-1,4-dichloro-1,4-distanna-2,3,5,6,7,8-hexaphosphabicyclo[2.2.2]octane - a New Cage Compound with the Sn(P2)3Sn SkeletonThe reaction of the diphosphide K2[(tBuP)2] 1 with SnCl4 leads by a redox process mainly to (tBuP)3,4 and other sideproducts. However, at the same time a threefold [2 + 1]-cyclocondensation reaction takes place yielding the new cage compound hexa-t-butyl-1,4-dichloro-1,4-distanna-2,3,5,6,7,8-hexaphosphabicyclo[2.2.2]octane, ClSn(tBuP—PtBu)3SnCl 2. 2 could be obtained in a pure form and characterized 31P and 119Sn NMR spectroscopically; 2 was also characterized by a single crystal structure analysis.
    Notes: Bei der Reaktion zwischen dem Diphosphid K2[(tBuP)2] 1 und SnCl4 finden überwiegend Redoxreaktionen statt, die zu (tBuP)3,4 und weiteren Nebenprodukten führen. Gleichzeitig findet aber auch eine dreifache [2 + 1]-Cyclokondensation statt, bei der die neuartige Käfigverbindung Hexa-t-butyl-1,4-dichloro-1,4-distanna-2,3,5,6,7,8-hexaphospha-bicyclo[2.2.2]octan, ClSn(tBuP—PtBu)3SnCl 2 gebildet wird. 2 konnte in reiner Form isoliert und 31P- und 119Sn-NMR-spektroskopisch sowie durch eine Einkristallstrukturanalyse charakterisiert werden.
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  • 6
    ISSN: 0044-2313
    Keywords: Phosphorus tin heterocycles ; syntheses ; crystal structure ; NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of the Stannatetraphospholanes (tBuP)4SnR2 (R = tBu, nBu, C6H5) and (tBuP)4Sn(Cl)nBu Molecular and Crystal Structure of (tBuP)4Sn(tBu)2The reaction of the diphosphide K2[tBuP-(tBuP)2-PtBu] 4 with the halogenostannanes (tBu)2SnCl2, (nBu)2SnCl2, (C6H5)2SnCl2 or nBuSnCl3 in a molar ratio of 1 : 1 leads via a [4 + 1]-cyclocondensation reaction to the stannatetraphospholanes (tBuP)4SnR2 3 b-3 d and (tBuP)4Sn(Cl)nBu 3 e, respectively, with the binary 5-membered P4Sn ring system. 3 b was characterized by a single crystal structure analysis; the 5-membered ring exists in a planar conformation. The compounds 3 b-3 e were identified by NMR and also by mass spectroscopy; the 31P{1H}-NMR spectra of 3 b-3 d showed an AA′MM′ (AA′MM′X), 3 e on the other hand an ABCD (ABCDX) spin system.
    Notes: Bei der Reaktion zwischen dem Diphosphid K2[tBuP-(tBuP)2-PtBu] 4 und den Halogenstannanen (tBu)2SnCl2, (nBu)2SnCl2, (C6H5)2SnCl2 bzw. nBuSnCl3 im Molverhältnis 1 : 1 findet eine [4 + 1]-Cyclokondensationsreaktion statt, bei der die Stannatetraphospholane (tBuP)4SnR2 3b-3d bzw. (tBuP)4Sn(Cl)nBu 3 e mit dem binären Fünfringgerüst P4Sn gebildet werden. Von 3 b wurde eine Einkristallstrukturanalyse durchgeführt; das Fünfringgerüst zeigt eine planare Konformation. Die Verbindungen 3 b-3 e wurden Massen- und NMR-spektroskopisch charakterisiert; 3 b-3 d liefern im 31P{1H}-NMR-Spektrum ein AA′MM′-(AA′MM′X)-, 3 e dagegen ein ABCD- (ABCDX)-Spinsystem.
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  • 7
    ISSN: 0044-2313
    Keywords: Trifluoromethyl tellurium compounds ; crystal structure ; NMR spectra ; metathesis reactions ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of CF3TeTeCF3. Synthesis, Characterization, and Properties of CF3TeITe2(CF3)2 crystallizes in the monoclinic space group P21/a with four formular units in the unit cell. The lattice constants are a = 10.13(1) Å, b = 11.489(7) Å, c = 6.822(8) Å and β = 101.20(8)°. CF3TeI is prepared by a quantitative reaction of Te2(CF3)2 with equimolar amounts of iodine. This compound is very instable, no isolation is possible. NMR spectra have been registrated. From metathesis reactions CF3TeX (X = C≡CC6H5, t-C4H9, SCN, SC6F5) are prepared.
    Notes: Te2(CF3)2 kristallisiert in der monoklinen Raumgruppe P21/a mit vier Formeleinheiten in der Elementarzelle. Die Gitterkonstanten betragen a = 10,13(1) Å, b = 11,489(7) Å, c = 6,822(8) Å und β = 101,20(8)°. Bei der Umsetzung von Te2(CF3)2 mit der äquimolaren Menge Iod entsteht CF3TeI in quantitativer Ausbeute, eine Isolierung gelingt nicht. Die NMR-Spektren zeigen eine starke Lösungsmittelabhängigkeit. Durch Metathesereaktionen werden die Verbindungen CF3TeX (X = C≡CC6H5, t-C4H9, SCN, SC6F5) synthetisiert.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 187 (1930), S. 193-208 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 5 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 193 (1930), S. 106-112 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 195 (1931), S. 164-172 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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