ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Koordinationsverbindungen von Zink (II), Cadmium (II) und Quecksilber(II)-Halogeniden mit 1,8-Di-2-pyridyl-3,6-dithiactan. Kristallstruktur von Hg2(C16H20N2S2)Br4Es werden verschiedene Komplexe von 1,8-Di-2-pyridyl-3,6-dithiaoctan (bpdto) mit MX2 (M = Zn, Cd oder Hg und X = Cl, Br oder I) hergestellt und mittels Elementar-analyse, IR, 1H-NMR und konduktometrischen Messungen untersucht. Die Kristallstruktur von Hg2(bpdto)Br4 wird mit Hilfe von Röntgenbeugungsdaten ermittelt (R = 0,079). Hg2(C16H20N2S2)Br4 kristallisiert monoklin in der Raumgruppe P21/c mit vier Formeleinheiten pro Elementarzelle; Gitterkonstanten a = 14,410(3), b = 6,209(5), c = 14,478(5) Å, β = 113,98(1)°. Im Komplex sind zwei Hg-Atome verzerrt-tetraedrisch koordiniert von je einem S-Atom [Hg—S 2,670(3) Å], einem N-Atom [Hg—N 2,366(8) Å] des verbrückenden Liganden und zwei terminalen Br-Atomen [Hg—Br 2,502(1) und 2,501(2) Å].
Notes:
We describe the synthesis and characterization (by elemental analysis, conductance measurements and 1H NMR and IR spectrometry) of compounds with the general formulae M(bpdto) X2 (M = Zn, X = Cl, Br or I; M = Cd, X = Cl or Br) and M2(bpdto)X4 (M = Cd, X = I; M = Hg, X = Cl, Br or I) (bpdto = 1,8-bis(2-pyridyl)-3,6-dithiaoctane). In addition, the structure of Hg2(bpdto)Br4 was determined by single crystal structure analysis and refined to a conventional R factor of 0.079. Hg2(C16H20N2S2)Br4 crystallized in the monoclinic space group P21/c with a = 14.410(3), b = 6.209(5), c = 14.478(5) Å, β = 113.98(1)° and Z = 4. The molecule was found to have two mercury atoms, each tetrahedrally coordinated to two bromide anions [Hg—Br 2.502(1) and 2,501(2) Å], and to one nitrogen atom [Hg—N 2.366(8) Å] and one sulphur atom [Hg—S 2.670(3) Å] of the ligand molecule, which acted as a bridge between the two metal atoms.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19885670112
