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  • Inorganic Chemistry  (448)
  • Wiley-Blackwell  (448)
  • Elsevier
  • Oxford University Press
  • 1995-1999  (112)
  • 1975-1979  (314)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 428 (1977), S. 91-96 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the RbNiCrF6 Type. IV. New Fluorides of the Type CsPdMF6 (M = Al, Ga, Sc, In, Fe, Rh, Mo)New prepared are the cubic compounds CsPdScF6 (brown violet, a = 10.82 Å); CsPdInF6 (brown violet, a = 10.89); CsPdFeF6 (redbrown, a = 10.64 Å); CsPdRhF6 (redbrown, a = 10.65 Å), all of RbNiCrF6-Type of structure. In addition prepared are CsPdAlF6 (light violet, non cubic) CsPdGaF6 (violet, non cubic) and CaPdMoF5 (redbrown, non cubic). The Madelung part of lattice energy, MAPLE, is calculated and discussed.
    Notes: Neu dargestellt wurden die kubischen Verbindungen CsPdScF6 (a = 10,82 Å); CsPdInF6 (a = 10,89 Å), beide braunviolett; CsPdFeF6 (a = 10,64 Å); CsPdRhF6 (a = 10,65 Å), beide rotbraun, alle RbNiCrF6-Typ, sowie die nichtkubischen Varianten CsPdAlF6 (hellviolett), CsPdGaF6 (violett) und CsPdMoF6 (rotbraun). Der Madelunganteil der Gitterenergie, MAPLE, wird berechnet und diskutiert.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 428 (1977), S. 97-102 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the RbNiCrF6 Type. V. New Fluorides of the Type CsBMF6 with B = MnII or NiII and M = Ga, Fe, Rh or Sc, In, Tl, RhNew prepared are the cubic compounds CsNiScF6 (light yellow, a = 10.60 Å); CsNiInF6 (lightyellow, a = 10.64 Å); CsNiTlF6 (light yellow, a = 10.60 Å); CsNiRhF6 (light redbrown, a = 10.37 Å); CsMnGaF6 (pink, a = 10.42 Å); CsMnFeF6 (light green, a = 10.55 Å) and CsMnRhF6 (redbrown, a = 10.58 Å), all RbNiCrF6 type of structure. The Madelung part of lattice energy, MAPLE, is calculated and discussed.
    Notes: Neu dargestellt wurden die kubischen Verbindungen CsNiScF6 (a = 10,60 Å); CsNiInF6 (a = 10,64 Å); CsNiTlF6 (alle hellgelb, a = 10,60 Å); CsNiRhF6 (hellrotbraun, a = 10,37 Å); CsMnGaF6 [2] (zartrosa, a = 10,42 Å); CsMnFeF6 [2] (hellgrün, a = 10,55 Å) und CsMnRhF6 (rotbraun, a = 10,58 Å), alle RbNiCrF6-Typ. Der Madelunganteil der Gitterenergie, MAPLE, wird berechnet und diskutiert.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 428 (1977), S. 83-90 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the RbNiCrF6 Type. III. New Fluorides of the Type CsZnMF6 (M = Al, Ga, In, Tl, Sc, Ti, V, Mn, Cu, Rh)Cubic compounds are CsZnGaF6 [3] (colourless, a = 10.29 Å); CsZnInF6 (colourless, a = 10.58 Å); CsZnTlF6 (colourless, a = 10.62 Å); CsZnScF6 (colourless, a = 10.58 Å); CsZnTiF6 (lightblue, a = 10.50 Å); CsZnVF6 (lightgreen, a = 10.43 Å); CsZnMnF6 (redbrown, a = 10.40 Å); CsZnCuF6 (light brown, a = 10.24 Å); CsZnRhF6 (redbrown, a = 10.41 Å), all RbNiCrF6 type of structure, in addition non cubic: CsZnAlF6 (colourless).The Madelung part of lattice energy, MAPLE, is calculated and discussed.
    Notes: Kubisch kristallisieren CsZnGaF6 [3] (farblos, a = 10,29 Å); CsZnInF6 (farblos, a = 10,58 Å); CsZnTlF6 (farblos, a = 10,62 Å), CsZnScF6 (farblos, a = 10,58 Å); CsZnTiF6 (hellblau, a = 10,50 Å); CsZnVF6 [3] (hellgrau, a = 10,43 Å); CsZnMnF6 (rotbraun, a = 10,40 Å); CsZnCuF6 (ocker, a = 10,24 Å); CsZnRhF6 (rotbraun, a = 10,41 Å), alle RbNiCrF6-Typ; jedoch nicht kubisch: CsZnAlF6 (farblos). Der Madelunganteil der Gitterenergie, MAPLE, wird berechnet und diskutiert.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 1911-1917 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Phosphazenes, LIV. Synthesis and Structure of 2,2′-Dimethyl-octaphenyl-2,2′-bi[cyclotri(phosphazen)yl]Metallation fo the hydrido-cyclophosphazene 1 and subsequent reaction with the chloro-cyclo-phosphazene 4 yields the title compounds 6. This is also obtained by reduction of 4 and from the disproportionation of the phosphino-cyclophosphazen 5. 6 has a centrosymmetric structure (determined by X-ray analysis), which may be compared to that of N3P3(C6H5)6 in respect to the phosphazene rings and to (CH3)4P2S4 as far as the central diphosphane part is concerned. I. r., 31 P, and 1 H n. m. r. spectra are discussed.
    Notes: Die Titelverbindung 6 wird aus dem Hydrido-cyclophosphazen 1 durch Metallieren und Umsetzen mit dem Chlor-cyclophosphazen 4 dargestellt. Sie bildet sich auch durch Reduktion von 4 und Disproportionieren des Phosphino-cyclophosphazens 5. 6 besitzt zentrosymmetrische Struktur (durch Röntgenstrukturanalyse bestimmt), die sich bezüglich des Ringgerüsts mit N3P3(C6H5)6 und bezüglich der zentralen Diphosphan-Gruppierung mit (CH3)4P2S2 vergleichen läßt. IR-, 31P- und 1H-NMR-Spektren werden diskutiert.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 1293-1300 
    ISSN: 0009-2940
    Keywords: Calculations, ab initio ; Aluminium compounds ; Heterometallic compounds ; Lithium compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reaction of the simple alane adduct [Me3Al · HN(CH2Ph)2] (2) with the lithium amide [(PhCH2)2NLi] leads to the formation of the mixed adduct [Me3Al · (PhCH2)2NLi · HN(CH2Ph)2] (1). The crystal structures of 1 and 2 are reported. Exhibiting a four-membered, mixed-metal, mixedanion ring-core, the structure of 1 is unusual in containing a monomeric lithium dibenzylamide fragment. Such fragments generally convert to aza-allyl derivatives, so its existence here can be attributed to the stabilising effect of the attached Me3Al ligand. Crystalline 2 adopts the classical, distorted-tetrahedral arrangement of simple monomeric alane adducts. Ab initio MO calculations on model systems show that mixed adduct formation from Me3Al and Me2NLi is exothermic, while further reaction to give Me2AlNMe2 and MeLi (i.e., complete transmetallation) is endothermic.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 3582-3614 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Light-induced Reactions, XII. A Convenient Synthesis of DimethylcrocetinTwo variant schemes of a three-step synthesis of crocetin dimethyl ester (1c) are described. 2,6-Dimethylphenol (2a) or 4-bromo-2,6-dimethylphenol (2b), respectively, and (E)-1,4-dibromo-but-2-ene (3a) serve as conveniently available starting material. The photochemical cleavage of the linearly conjugated cyclohexadienones 6 and 7 affording seco-isomeric dienyl ketenes plays the key role, and is smoothly achieved by sun light of Frankfurt. The configuration of the stereoisomeric key compounds 6 and 7 is determined by enantioselective degradation, using circularly polarized light, as well as by enantioselective synthesis of 7.
    Notes: Zwei Varianten einer dreistufigen Synthese von Crocetin-dimethylester (1c) werden beschrieben. 2,6-Dimethylphenol (2a) oder 4-Brom-2,6-dimethylphenol (2b) und (E)-1,4-Dibrom-2-buten (3a) dienen als bequem zugängliche Synthesebausteine. Die photochemische Öffnung der linearkonjugierten Cyclohexadienone 6 und 7 zu seco-isomeren Dienylketenen, die mit Frankfurter Sonnenlicht mühelos erreicht werden kann, spielt die Schlüsselrolle. Die Konfiguration der stereoisomeren Schlüsselverbindungen 6 und 7 wird durch enantioselektiven Abbau von 7 mit zirkular polarisiertem Licht sowie durch enantioselektiven Aufbau von 7 festgelegt.
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  • 7
    ISSN: 0044-2313
    Keywords: Technetium ; nitrido complexes ; crystal structure ; sulfur ligands ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese und Charakterisierung von Bis(tetrabutylammonium) bis(isotrithiodithiolat-S,S′)nitridotechnetat(V), (Bu4N)2[TcN(dmit)2](Bu4N)2[TcN(dmit)2] (dmit2- = isotrithiodithiolat) wurde aus Na2dmit, (Bu4N)[TcNCl4] und (Bu4N)Cl in Acetonitril hergestellt. Die Verbindung kristallisiert monoklin, Raumgruppe C2/c mit a = 23,143(5), b = 8,342(2), c = 26,382(5) Å, β = 95,12(3), Z = 4. Die Bindungslänge Tc≡N beträgt 1,615(6) Å. Tc und N(l) befinden sich auf einer zweizähligen kristallographischen Achse. Der Komplex hat quadratisch-pyramidale Geometrie. Die vier Schwefelatome bilden die Grundfläche der Pyramide, deren Spitze vom Nitrido-Stickstoff eingenommen wird. Das Technetiumatom befindet sich um 0,62 Å über der Grundfläche.
    Notes: (Bu4N)2[TcN(dmit)2] (dmit2- = isotrithionedithiolate) was prepared from Na2dmit, (Bu4N)[TcNCl4] and (Bu4N)Cl in acetonitrile. The compound crystallises in the monoclinic space group C2/c with a unit cell of the dimensions a = 23.143(5), b = 8.342(2), c = 26.382(5) Å, β = 95.12(3), Z = 4. The Tc≡N bond distance is comparatively short at 1.615(6) Å. Tc and N(1) are situated on a two-fold crystallographic axis. The general coordination geometry is a square pyramid with the four sulfur atoms forming the basal plane and the nitrido nitrogen at the apex. The technetium is located 0.62 Å above the plane defined by the four sulphurs.
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  • 8
    ISSN: 0044-2313
    Keywords: Trifluoromethyliodine tetrafluoride ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Fluorinate with Trifluoromethylhypochlorite CF3OCl. Preparation and Crystal Structure Determination of Trifluoromethyliodine Tetrafluoride CF3IF4The preparation of Trifluoromethyliodine tetrafluoride (CF3IF4), from Trifluoromethyliodide (CF3I) with Trifluoromethylhypochlorite (CF3OCl), and the crystal structure of CF3IF4 at 172(1) K is described. CF3IF4 crystallizes in the monoclinic space group P21/c with a = 762.2(7) pm, b = 842.9(10) pm, c = 856.4(7) pm, β = 99.65(7)° with four formula units per unit cell.
    Notes: Es wird die Darstellung von Trifluormethyliodtetrafluorid (CF3IF4), aus Trifluormethyliodid (CF3I) und Trifluormethylhypochlorit (CF3OCl), sowie die Kristallstrukturanalyse bei 172(1) K beschrieben. CF3IF4 kristallsiert in der monoklinen Raumgruppe P21/c mit a = 762,2(7) pm, b = 842,9(10) pm, c = 856,4(7) pm, β = 99,65(7), Z = 4.
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  • 9
    ISSN: 0044-2313
    Keywords: Ferrocene ; Thioureas ; Chelates ; X-Ray Structure ; EPR-Single Crystal ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: N,N-Dialkyl-N′-ferrocenoylthioureas and Ferrocene-1,1′ -dicarbonic-acid-di-N,N-dialkylthioureides as Ligands for Transition Metals: Synthesis, Acid-Dissociation Constants, X-Ray Structure Determination, and EPR-Single Crystal InvestigationReaction of ferrocenoylisothiocyanate or ferrocene-1,1′ -dicarbonic acid -diisothiocyanate with secondary amines gives N,N-dialkyl-N′ -ferrocenoylthioureas or the respective ferrocene-1,1′-dicarbonic acid-di-N,N-dialkyl-thioureides. The former yield neutral complexes with transition metal ions (Ni2+, Cu2+, Co3+, Pt2+, Fe3+). The acid dissociation constants of the ligands were determined. The EPR spectra of a bis-(N,N-dinbutyl-N′-ferrocenoylthioureato)copper(II) single crystal are discussed. The X-ray structure determination of ferrocene-1,1′-dicarbonic acid-di-N,N-diethyl-thioureide and its different behaviour against Ni2+ and Cu2+ is presented.
    Notes: Die Reaktion von Ferrocenoylisothiocyanat bzw. Ferrocen-1,1′-dicarbonsäure-diisothiocyanat mit sekundären Aminen führt zu den entsprechenden N,N-dialkylierten N′-Ferrocenoylthioharnstoffen bzw. zu Ferrocen-1,1′-dicarbonsäure-di-N,N-dialkyl-thioureiden. Erstere bilden mit Übergangsmetallionen (Ni2+, Cu2+, Co3+, Pt2+, Fe3+) Neutralkomplexe. Die Säuredissoziationskonstanten der Liganden werden angegeben. Eine Einkristall-EPR-Untersuchung des Bis-(N,N-dinbutyl-N′ -ferrocenoylthioureato)kupfer(II) wird diskutiert. Die Röntgenkristallstrukturanalyse von Ferrocen-1,1′-dicarbonsäure-di-N,N-diethyl-thioureid und dessen unterschiedliches Verhalten gegenüber Ni2+ und Cu2+ werden erörtert.
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  • 10
    ISSN: 0044-2313
    Keywords: Copper(II) chelate complex ; iron(III) chelate complex ; edta-type ligands ; chelates ; X-ray structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Molecular Structures of Copper(II) and Iron(III) Chloro Complexes with di- and monoprotonated N-(pyrid-2-ylmethyl)ethylenediamine-N,N′,N′-triacetate (H2pedta-; Hpedta2-)The molecular structures of two complexes of di- and monoprotonated N-(pyrid-2-ylmethyl)ethylenediamine-N,N′,N′ -triacetate (pedta3-) with CuII and FeIII as central atoms have been determined by single crystal X-ray diffraction methods. Both complexes have a distorted octahedral coordination with H2pedta- and Hpedta2- as pentadentate ligands and a chloride ion occupying the sixth coordination site. The different oxidation states of the central atoms result in a completely different coordination behaviour of the carboxyl groups. In both complexes one of the —CH2—COOH groups is uncoordinated. In the FeIII complex, the central atom is coordinated by the hydroxylic O atoms of the deprotonated carboxyl groups. Contrary to this in the CuII complex, the central atom is coordinated by the carbonylic O atoms. One of the coordinated carboxyl groups is protonated and the other is deprotonated. All protonated carboxyl groups in both complexes form intermolecular hydrogen bonds.
    Notes: Die Molekülstrukturen zweier Komplexe von di- bzw. monoprotoniertem N-(Pyrid-2-ylmethyl)ethylendiamin-N,N′,N′-triacetat (pedta3-) mit CuII bzw. FeIII als Zentralatome wurden durch Röntgenkristallstrukturanalyse bestimmt. Beide Komplexe haben eine verzerrt oktaedrische Koordination, in der H2pedta- bzw. Hpedta2- als fünfzähnige Liganden wirken. Die sechste Koordinationsstelle wird durch ein Chlorid-Ion besetzt. Die unterschiedliche Oxidationsstufe der Zentralatome führt zu einem unterschiedlichen Koordinationsverhalten der Carboxylgruppen. In beiden Komplexen ist eine der —CH2—COOH-Gruppen unkoordiniert. Im FeIII-Komplex erfolgt die Koordination über die hydroxylischen O-Atome der deprotonierten Carboxylgruppen. Im Gegensatz dazu beobachtet man im CuII-Komplex Koordination über die carbonylischen O-Atome, wobei eine der beiden Carboxylgruppen protoniert und die andere deprotoniert vorliegt. Von allen protonierten Carboxylgruppen in beiden Komplexen gehen intermolekulare Wasserstoffbrückenbindungen aus.
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