Kristallstruktur von Kaliumtriflat-Butyrolacton, [K3(O3SCF3)3(O2C4H6)2]

✍ Scribed by Thorsten Gröb; Gert Seybert; Werner Massa; Andreas Greiner; Kurt Dehnicke

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: German
• Weight: 208 KB
• Volume: 627
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/1521-3749(200101)627:1<1::aid-zaac1>3.0.co;2-h

✦ Synopsis

Single Crystals of [K 3 (O 3 SCF 3 ) 3 (O 2 C 4 H 6 ) 2 ] (1) have been obtained as a by-product from the reaction of KNPPh 3 with Yb(O 3 SCF 3 ) 3 in THF with subsequent addition of butyrolactone. The structure of 1 consists of three symmetry-independent potassium ions which are linked by the oxygen atoms of the triflate ions and the butyrolactone molecules to give a supramolecular structure with layers normal to the crystallographic b-axis. The carbonyl oxygen atoms of both butyrolac-tone molecules show a l 3 -bridging function between three K + ions, one of them is, in addition, coordinated by the ring Oatom in a chelate manner. 1: Space group P2 1 /c, Z = 4, lattice dimensions at 193 K: a = 1155.0(1), b = 1537.2(1), c = 1531.1(1) pm, b = 100.623(7)°, R = 0.0484.