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Zur Kenntnis von Cr2H2(As2O7)(As4O12) |
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| Authors: | Martin Jansen Gerold Brachtel |
| Institution: | (1) Institut für Anorganische und Analytische Chemie, Justus Liebig-Universität, D-6300 Lahn-Gießen, Bundesrepublik Deutschland |
| Abstract: | The crystal structure of Cr2H2(As2O7)(As4O12) has been determined by X-ray methods using single crystal diffractometer data (1,152 reflections,R=0.054, orthorhombic,Pmmn,a=1317.7 (7),b=1124.9 (6),c=494.3 (4) pm,Z=2). The crystal structure contains both diarsenate(V) and the hitherto unknown cyclo-tetraarsenate(V)-anions. The magnetic susceptibility follows theCurie-Weiss law ( =3.86±0.01 B/Cr3+,  =–31 K). |
| Keywords: | Crystal structure of Cr2H2(As2O7)(As4O12) Cyclo-tetraarsenate(V)-ion Diarsenate(V)-ion Magnetic susceptibility |
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