1974
DOI: 10.1002/zaac.19744100207
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Darstellung, Struktur und Eigenschaften von Kupfer(II)‐Carbonat

Abstract: CuCO3 entsteht aus Azurit, Malachit oder CuO durch Reaktion mit CO2 bei einem Druck von 20 kb und einer Temperatur von 500°C. Die Verbindung kristallisiert monoklin in der Raumgruppe PaC s2 (Nr. 7); Gitterkonstanten: a = 6,092, b = 4,493, c = 7,030 Å, β = 101,34°. Aus der Strukturbestimmung ergibt sich für das Kupfer eine verzerrte quadratisch‐pyramidale Sauerstoff‐Umgebung mit der Koordinationszahl 5. Das IR‐Spektrum wird unter Berücksichtigung der Lagesymmetrie des Carbonations zugeordnet.

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Cited by 25 publications
(9 citation statements)
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“…According to Isahak et al and Seidel et al, the value of Gibbs free energy for the reaction resulting in the formation of CuCO 3 is given by +4.9 kJ mol À1 and +4.2 kJ mol À1 , respectively, at 298 K and p CO 2 ¼ 1 bar (Table 2). 41,42 Consequently, the reaction of carbonate formation is thermodynamically unfavorable under the standard conditions.…”
Section: Thermodynamical Investigations Of the Gas Sensing Reactionmentioning
confidence: 99%
“…According to Isahak et al and Seidel et al, the value of Gibbs free energy for the reaction resulting in the formation of CuCO 3 is given by +4.9 kJ mol À1 and +4.2 kJ mol À1 , respectively, at 298 K and p CO 2 ¼ 1 bar (Table 2). 41,42 Consequently, the reaction of carbonate formation is thermodynamically unfavorable under the standard conditions.…”
Section: Thermodynamical Investigations Of the Gas Sensing Reactionmentioning
confidence: 99%
“…Sach Erwiirinen der Renktionslosung iLnf 50°C crfolgte die Prodnktabtrcnnnngin~~n~ durch Abfiltrieren von entstandcnem Hpdrochlorid, dbdestillierrn von Toluol im ()lpnmp"liv"kuutn itnd Utnkrist,;illisieren dea iiligcn R,iickstandes iius Toluol/Hesan (1 : 1). 5 bei I,,,,,, 304 nm. Ein Spektrenvergleich zwischen den allen Verbindungen genieinsamen beiden Absorptionsbanden und den beobachteten Banden von unkoinplexierten P N P mit A,,,-Werterr bei 257nm und 316nm (Schulter bei 345 nm) laat darauf schlieBen, daB die zwei Absorptionsmaxiina der jeweiligen Komplexe uberwiegend durch intensitatsstarke Elektronenubergange voin PNP-Liganden (nn-Typ) und weniger durch diejenigen von drei gleichfalls vorhandenen CO-Liganden gepragt werden.…”
Section: Experimentellesunclassified
“…Here we describe some new, highly symmetrical metal-carbonate networks that have the topology of the 4 2 6 4 sodalite net. [2] Structural studies of one-, [3] two-, [4] and three-dimensional [5] metal-carbonate polymers have been reported. In 1996 a beautiful network with cubic symmetry was described by Stucky et al for the compound Na 2 Zn 3 (CO 3 ) 4 ·3 H 2 O.…”
mentioning
confidence: 99%
“…X-ray diffraction analysis [11] indicates that the [Cu 6 (CO 3 ) 12 (CH 6 N 3 ) 8 ] 4À components adopt a sodalite-like topology essentially identical to that seen in 2, with Li + located at the center of every O 4 hole. The (NMe 4 + )(H 2 O) 5 contents of the cages are disordered. The five water molecules are located 2.01 from Li + on the normal to the O 4 plane and are disordered over the six available sites of this type.…”
mentioning
confidence: 99%