Die Kristallstruktur von Ga3Cl7
نویسنده
چکیده
Trigallium heptachloride, G a3Cl7, has been prepared from GaCl3 and Ga in sealed glass ampoules. G a3Cl7 crystallizes in the space group P«a2, (No. 33) with a = 1181.8(1) pm; b = 889.7(1) pm; c — 1057.5(1) pm; Z = 4. The compound is isotypic with KGa2Cl7. The G a2Cl7~ anion has nearly C2 symmetry (gauche conformation) with d (G a—Clbrjdg) = 230.3 pm, d(G a—Clterm) = 214.3 pm and < G a —Cl —Ga = 109.0°. The G a+ ion is coordinated by ten Cl atoms (4 + 6) with d = 346.2 pm. The coordination of G a+ and the conformation of G a2Cl7“ are discussed in detail together with related compounds.
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تاریخ انتشار 2013