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  • 1
    ISSN: 0044-2313
    Keywords: Mercury compounds ; dimercury(I)-bis(tricyanmethanide) ; synthesis ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Mercury Compounds with Cyancarbanions. I . Synthesis and Crystal Structure of Dimercury(I)-bis(tricyanmethanide)With the triclinic unit cell, space group P1, with the lattice constants a = 5.2794(1) Å, b = 9.9279(1) Å, c = 11.3376(2) Å, α = 71.004(4)°, β = 76.459(2)° and γ = 74.601(4)° are two formula units. The three-dimensional network, which characterizes the structure, results from dimercury(I) ions with sp3 hybridization, which form beside the homonuclear metal bonding three covalent bonds to cyanonitrogen atoms. The tricyanmethanide ion acts by losing symmetry as a tridentate ligand.
    Notes: Innerhalb der triklinen Elementarzelle, Raumgruppe P1, mit den Gitterkonstanten a = 5,2794(1) Å, b = 9,9279(1) Å, c = 11,3376(2) Å, α = 71,004(4)° und β = 74,601(4)° befinden sich zwei Formeleinheiten. Das den Strukturaufbau charakterisierende dreidimensionale Netzwerk resultiert aus sp3-hybridisierten Diquecksilber(I)-ionen, die neben der homonuklearen Metallbindung drei weitere kovalente Bindungen zu Cyanstickstoffatomen ausbilden. Das Tricyanmethanidion wirkt unter Symmetrieverlust als dreizähniger Ligand.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 610 (1992), S. 46-50 
    ISSN: 0044-2313
    Keywords: Mercury compounds ; dimercury(I)-bis-(1,1,3,3-tetracyanpropenide) ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Mercury Compounds with Cyancarbanions. II Synthesis and Crystal Structure of Dimercury(I)-bis(1,1,3,3-tetracyanpropenide)The structure of dimercury(I)-bis(1,1,3,3-tetracyanpropenide), Hg2(tcp)2, has been determined by single-crystal X-ray diffraction methods. The crystals are monoclinic, space group P 21/n. The unit cell dimensions are: a = 9.9193(3) Å, b = 5.6912(6) Å, c = 13.3806(4), β = 92.544(4)° and Z = 2. The mercury atoms in the centrosymmetric cation are three-coordinate with Hg—Hg 2.503, Hg—N 2.207, 2.207, 2.560 Å. tcp behaves as a bidentate ligand forming infinite chains running parallel to the a-axis.
    Notes: Die Struktur von Diquecksilber(I)-bis(1,1,3, 3-tetracyanpropenid), Hg2(tcp)2, wurde durch Einkristall-Röntgenstrukturanalyse ermittelt. Die Kristalle sind monoklin, Raumgruppe P 21/n. Die Zelldimensionen sind a = 9,9193(3) Å, b = 5,6912(6) Å, c = 13,3806(4) Å, β = 92,544(4)° und Z = 2. Die Quecksilberatome im zentrosymmetrischen Kation werden dreifach koordiniert mit Hg—Hg 2,503; Hg—N 2,207; 2,560 Å. tcp fungiert als zweizähniger Ligand unter Ausbildung unendlicher Ketten parallel zur a-Achse.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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