Oxidizing Rhodium with sulfuric acid: The sulfates Rh2(SO4)3 and Rh2(SO4)3∙2H2O
Oxidizing Rhodium with sulfuric acid: The sulfates Rh2(SO4)3 and Rh2(SO4)3∙2H2O
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用硫酸氧化铑:硫酸盐 Rh2(SO4)3 和 Rh2(SO4)3â2H2O
DOI:
10.1002/ejic.201601247
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发表时间:
2017
影响因子:
2.3
通讯作者:
Mathias S. Wickleder
中科院分区:
文献类型:
--
作者:
Stefan Schwarzer;Annika Betke;Christian Logemann;Mathias S. Wickleder
The reaction of elemental rhodium and concentrated sulfuric acid (97 %) at 400 °C leads to red plate‐shaped single crystals of Rh2(SO4)3[trigonal,R3,Z= 6,a= 806.8(1) pm,c= 2204.8(4) pm,V= 1242.8(4) × 106pm3]. The same reaction carried out at a temperature of 475 °C leads to orange crystals of Rh2(SO4)3·2H2O [orthorhombic,Pnma, Z= 4,a= 920.46(2) pm,b= 1244.47(3) pm,c= 833.37(2) pm,V= 954.61(4) × 106pm3]. Thermal analysis and X‐ray powder diffraction measurements were performed to investigate the decomposition and resulting residues of the compounds. For both compounds the decomposition occurs through two steps and is finished at around 1000 °C at the stage of elemental rhodium. Additionally both sulfates were characterized by means of IR spectroscopy.
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DOI:
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发表时间:
1983
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影响因子:
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