Synthese und Kristallstruktur von Y(HSO4)3-I und Y(HSO4)3 · H2O

✍ Scribed by Mathias S. Wickleder

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: German
• Weight: 128 KB
• Volume: 625
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/(sici)1521-3749(199910)625:10<1707::aid-zaac1707>3.0.co;2-0

✦ Synopsis

Inhaltsu È bersicht. Y(HSO 4 )-I bildet sich in Form lattenfo È rmiger Einkristalle bei der Reaktion von konz. Schwefelsa È ure mit Y 2 O 3 bei 200 °C. Y(HSO 4 ) 3 -I kristallisiert orthorhombisch (Pbca, Z = 8, a = 1201,5(1), b = 953,76(8), c = 1650,4(1) pm, R all = 0,0388). Dabei ist Y 3+ von acht einza Èhnig angreifenden HSO 4 ± -Gruppen umgeben. Y(HSO 4 ) 3 H2 O bildet sich beim Abku È hlen einer Lo È sung von Y 2 O 3 in 85%iger Schwefelsa È ure in Form transparenter tafeliger Kristalle. In der Kristallstruktur der triklin kristallisierenden Verbindung (P1, Z = 2, a = 679,8(1), b = 802,8(2), c = 965,9(2) pm, a = 79,99(2)°, b = 77,32(2)°, c = 77,50(2)°, R all = 0,0264) ist Y 3+ von sieben HSO 4 ± -Guppen und einem H 2 O-Moleku È l umgeben. Syntheses and Crystal Structures of Y(HSO 4 ) 3 -I and Y(HSO 4 ) 3 ´H2 O Abstract. Lath shaped crystals of Y(HSO 4 )-I are obtained by treatment of Y 2 O 3 with conc. sulfuric acid at 200 °C. Y(HSO 4 ) 3 -I crystallizes orthorhombic (Pbca, Z = 8, a = 1201.5(1), b = 953.76(8), c = 1650.4(1) pm, R all = 0.0388). In the crystal structure Y 3+ is coordinated by eight monodentate HSO 4 ± groups. Colorless, plate like single crystals of Y(HSO 4 ) 3 ´H2 O grew from a solution of Y 2 O 3 in 85% sulfuric acid upon cooling. In the crystal structure of the tri-clinic compound (P1, Z = 2, a = 679.8(1), b = 802.8(2), c = 965.9(2) pm, a = 79.99(2)°, b = 77.32(2)°, c = 77.50(2)°, R all = 0.0264) Y 3+ is surrounded by seven HSO 4 ± groups and one molecule of water.