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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 389 (1972), S. 247-253 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dicarbonyldiacetylbis(dimethylhydrazon)-nickel(O) forms ruby red crystals belonging to the orthorhombic apace group Pbca. The unit cell with lattice constants a = 17.91 Å, b = 10.34 Å and c = 14.90 Å contains eight molecules.PATTERSON and FOURIER maps followed by least-squares refinement yielded atomic parameters, the R-value being 11.7%.Each Ni atom is in the centre of a distorted tetrahedron built by 2 carbonyl groups and the bidentate ligand, which forms a five-membered ring (almost planar) with the central atom.
    Notes: Dicarbonyl-diacetylbis(dimethylhydrazon)-Nickel(O) bildet rhombische rubinrote Kristalle der Raumgruppe Pbca. Die Elementarzelle mit den Gitterkonstanten a = 17,91 Å, b = 10,34 Å und c = 14,90 Å enthält acht Moleküle. PATTERSON-und FOURIER-Synthesen sowie die Verfeinerung nach der Methode der kleinsten Fehlerquadrate ergaben die Atomlagen bei einem R-Wert von 11,7%. Jedes Ni-Atom ist verzerrt tetraedrisch von 2 Carbonylgruppen und dem zweizähnigen organischen Liganden umgeben, der mit dem Zentralatom einen fast ebenen Fünfring bildet.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 435 (1977), S. 179-190 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tetramethyl Arsonium and Stibonium Methylchlorometallates of Gallium and IndiumThe preparation of the metallates of the general composition [Me4MV] + [Me4-xMIIIClx] - (with MV = As, Sb; MIII = Ga, In and x = 0-4) is described. The i.r., Raman, and 1H n.m.r. spectra of these ionic compounds are discussed. The results of the X-ray analysis of the monochloro complexes are given.
    Notes: Die Darstellung von Metallaten der allgemeinen Zusammensetzung [Me4MV] + [Me4-xMIIIClx] - (mit MV = As, Sb; MIII = Ga, In und x = 0-4) wird beschrieben. Die IR- Raman- und 1H-NMR-Spektren dieser ionisch gebauten Verbindungen werden diskutiert. Für die Monochlorokomplexe sind außerdem die Daten der Röntgenstrukturanalysen angegeben.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 429 (1977), S. 99-104 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal and Molecular Structure of Dimeric DimethylaminodimethylindiumDimeric dimethylamino-dimethylindium was prepared by splitting off methane from the adduct Me3In—NHMe2 and characterized by its vibrational spectra. The structure - determined by X-ray analysis - has shown to have the monoclinic space group P21/c with a = 7.601, b = 7.336, c = 14.927 Å and β = 119.9°. Patterson, Fourier and Difference synthesis were used for determing the structure, which was refined by least square analysis to an R value of 0.068.
    Notes: Dimeres Dimethylamino-dimethylindium wurde durch Methanabspaltung aus dem Addukt Me3In—Me2NH dargestellt und schwingungsspektroskopisch charakterisiert. Die Röntgenstrukturanalyse führte zu der monoklinen Raumgruppe P21/c mit a = 7,601, b = 7,336, c = 14,927 Å und β = 119,9°. Die Struktur wurde aus Patterson-, Fourier- und Differenz-Fourier-Synthesen abgeleitet und nach der Methode der kleinsten Fehlerquadrate bis zu einem R-Wert von 0,068 verfeinert.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 358 (1968), S. 67-81 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Partial oxidation of K2[Pt(CN)4] as well as partial reduction of K2[Pt(CN)4X2] (X = Cl. Br) leads to coppercoloured products of the composition given in the title. They form tetragonal needles belonging to space group P4/mmm. The lattice constants of the chlorine compound are a = b = 9.866, c = 5,759 Å; those of the analogous bromine compound are a = b = 9.866, c = 5.773 Å. Atomic coordinates have been determined by Patterson and Fourier syntheses and refined by least-squares procedures to a final R = 7.3%. There are square planar [Pt(CN)4] groups, stacked in columns, whose axes are occupied by Pt atoms. Distances between platinum atoms of neighbouring complex planes are 2.880 and 2.887 Å, respectively (= c/2). The excess charge of the Pt (formally + 2.3) cannot be localized, since all Pt's are crystallographically equivalent. The charge balance is restored by halogenide ions statistically occupying lattice holes.
    Notes: Durch partielle Oxydation von K2[Pt(CN)4] wie durch partielle Reduktion von K2[Pt(CN)4X2] (X - Cl, Br) erhält man kupferfarbige Produkte der Zusammensetzung K2[Pt(CN)4]X0,3 · 2,5 H2O. Sie bilden tetragonale Nadeln, die zur Raumgruppe P4/mmm gehören. Die Gitterkonstanten der Chlorverbindung sind a = b = 9,866 Å, c = 5,759 Å, die der analogen Bromverbindung a = b = 9,866 Å, c = 5,773 Å. Die Bestimmung der Atomlagen erfolgte über Patterson- und Fourier-Synthesen mit anschließender Verfeinerung nach der Methode der kleinsten Quadrate, bis zu einem R-Wert von 7,3%. Sie ergab quadratisch planare [Pt(CN)4]-Gruppen, die, übereinander gestapelt, Säulen bilden, auf deren Achsen die Pt-Atome aufgereiht sind. Der Pt-Pt-Abstand ist 2,880 bzw. 2,887 Å (= c/2). Da alle Platinatome röntgenographisch gleichberechtigt sind, lä·t sich die erhöhte Ladung am Pt (formal + 2,3) nicht lokalisieren. Zum Ladungsausgleich werden statistisch Halogenid-Ionen in Gitterlücken eingebaut.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 398 (1973), S. 119-128 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dialkylindium Acetates R2InOOCCH3 (R = CH3, C2H5). Preparation, Properties, and Structure.Dimethyl- and diethylindium acetate were prepared and the vibrational spectra (IR and RAMAN) discussed. The X-ray structure determination shows that diethylindium acetate belongs to the orthorhombic space group Pnma. The unit cell with lattice constants a = 8.40, b = 7.41, c = 15.13 Å contains four molecules. Each indium atom forms with an acetate group a planar four-membered ring. The indium-oxygen distance within such a ring is only a little shorter than the distance of this oxygen to the indium of the next neighboured ring. Indium has therefore the coordination number six.
    Notes: Dimethyl- und Diäthylindium-acetat wurden dargestellt und schwingungsspektroskopisch (IR und R-RAMAN)untersucht. Die Röntgenstrukturanalyse von Diäthylindiumacetat zeigt, daß diese Verbindung in der orthorhombischen Raumgruppe Pnma kristallisiert. Die Elementarzelle mit den Gitterkonstanten a = 8,40 Å, b = 7,41 Å, c = 15,13 Å enthält vier Formeleinheiten. Indium bildet mit der Acetatgruppe einen ebenen Vierring. Der Indium - Sauerstoff-Abstand innerhalb eines solchen Vierrings ist aber nur wenig kürzer als der Abstand dieses Sauerstoffs zum Indium des nächst benachbarten Moleküls. Damit kommt dem Indium die Koordinationszahl 6 zu.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 520 (1985), S. 107-112 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 2-p-Chlorophenyl-1, 3-benzoxaphosphole; Molecular and Crystal Structure of a σ2-P=C—O Derivative.A crystal structure analysis for 2-p-chlorophenyl-1,3-benzoxaphosphole is reported and the results discussed. The p-chlorophenyl moiety is only very slightly rotated with respect to the benzoxaphosphole system. The molecular geometry and bonding character are indicative that the molecule is aromatic. The differences in reactivity of this benzoxaphosphole compared with that of the nitrogen analogs and the 2-alkyl-derivatives can be explained.
    Notes: Die Röntgenstrukturanalyse von 2-p-chlorphenyl-1, 3-benzoxaphosphol wird mitgeteilt und die Ergebnisse diskutiert. Die Chlorphenyl-Gruppe ist nur wenig gegen das planare Benzoxaphosphol-Gerüst verdreht. Molekülgeometrie und Bindungsverhältnisse indizieren insgesamt einen aromatischen Zustand des Moleküls. Das zo den Stickstoffanalogen und auch zu den 2-Alkyldervaten unterschiedliche Reaktionsverhalten kann erklärt werden.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 391 (1972), S. 97-106 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dialkyl gallium and dialkyl indium oxalatesThe trialkyls of gallium and indium react with oxalic acid in a 2:1 molar ratio. The products have the formula (RaM)2O4C2 with M = Ga, In and R = CH3 C2H5. The vibrational spectra (IR and RAMAN) point to nonplanar structures of D2 symmetry. Mass spectroscopic investigations are used for further determination of the structures.
    Notes: Die Trialkyle des Galliums und Indiums reagieren mit wasser-freier Oxalsäure im Verhältnis 2:1. Man erhält Produkte der Zusammensetzung (R2M)2O4C2 mit M = Ga, In und R = CH3, C2H5. Die Schwingungsspektren (IR und Raman) deuten auf nicht planare Strukturen der Symmetrie D2 hin. Massenspektroskopische Untersuchungen werden zur weiteren Strukturaufklärung herangezogen.
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  • 8
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Studies on Dialkyl Metal Phosphoric and Phosphinic Acid Derivatives of the Elements Aluminium, Gallium, Indium, and Thallium, III. The Vibrational Spectra of the Hypophosphites and Dimethyl ThiophosphinatesThe vibrational spectra (IR and RAMAN) of the dimethylmetal hypophosphites (CH3)2MOOPH2 and the dimethylmetal dimethylthiophosphinates (CH3)2MOSP(CH3)2 of the elements aluminium, gallium, and indium are assigned and discussed. A new spinning RAMAN cell is described.
    Notes: Die Schwingungsspektren (IR und RAMAN) der Dimethylmetall- hypophosphite, (CH3)2MOOPH2, und der Dimethylmetalldimethylthiophosphinate, (CH3)2MOSP(CH3)2, der Elemente Aluminium, Gallium und Indium werden zugeordnet und diskutiert. Außerdem wird eine neue, rotierende RAMAN-Probenhalterung beschrieben.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 410 (1974), S. 156-164 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dialkyl Indium Mono- and Alkyl Indium Dihalides R2InX and RInX2 (with R = CH3, C2H5 and X = Cl, Br, I). I. The Crystal Structure of (CH3)2InClThe routes for preparing R2InX and RInX2 compounds are summarized, and the vibrational spectra (IR and Raman) are discussed. The crystal structure determination of (CH3)2InCl led to the following results: space group orthorhombic Cmcm, a = 14.107 Å, b = 6.123 Å, c = 5.897 Å and four formula units in the cell. The indium atom - in the center of a distorted octahedron - is surrounded by two carbon and four chlorine atoms, with distinctly different indium chlorine distances.
    Notes: Die Darstellungsmöglichkeiten der Verbindungen werden zusammenfassend beschrieben und ihre Schwingungsspektren (IR und Raman) diskutiert. Die Kristallstrukturbestimmung an (CH3)2InCl ergibt die orthorhombische Raumgruppe Cmcm mit a = 14,107 Å, b = 6,123 Å, c = 5,897 Å und vier Formeleinheiten pro Zelle. Indium ist in verzerrt oktaedrischer Umgebung von zwei Kohlenstoff- und vier Chloratomen (mit deutlich verschiedenen In—Cl-Abständen) koordiniert.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 441 (1978), S. 175-180 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal and Molecular Structure of Tetramethyl(dimethylthiophosphinato)stiborane (CH3)4SbOP (S) (CH3)2(CH3)4SbOP(S)(CH3)2 crystallizes in the triclinic space-group P1 with a = 7.125, b = 9.297, c = 18.861 Å, α = 77.44°, ß = 83.86°, γ = 79.91° and four formula units per cell. Stibonium is distorted trigonal-bipyramidal and phosphorous distorted tetrahedral surrounded. The mean values of bondlengths are: Sb—Ceq = 2.108, Sb—Cax = 2.147, Sb—O = 2.641, P—C = 1.819, P—O = 1.514, and P—S = 1.987 Å.
    Notes: (CH3)4SbOP(S)(CH3)2 kristallisiert in der triklinen Raumgruppe P1 mit a = 7,125, b = 9,297, c = 18,861 Å, α = 77,44°,ß = 83,86°, γ = 79,91° und vier Formeleinheiten in der Zelle. Antimon ist verzerrt trigonal-bipyramidal und Phospor verzerrt tetraedrisch umgeben. Die Mittelwerte der Bindungsabstände sind: Sb—Cäq = 2,108, Sb—Cåx = 2,147, Sb—O = 2,641, P—C = 1,819, P—O = 1,514 und P—S = 1,987 Å.
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