PREPARATION AND SPECTROSCOPIC CHARACTERIZATION OF THE PERSULFONIUM SALTS (CH3)(CF3)SF3+SBF6- AND (CH3)(CF3)2SF2+SBF6- AND CRYSTAL-STRUCTURE OF CF3SF2+SBF6-

被引:7
|
作者
MINKWITZ, R [1 ]
MOLSBECK, W [1 ]
BACK, B [1 ]
PREUT, H [1 ]
机构
[1] UNIV DORTMUND,FACHBEREICH CHEM,W-4600 DORTMUND 50,GERMANY
来源
关键词
PERSULFONIUM SALTS; PREPARATION; VIBRATIONAL SPECTRA; NMR SPECTRA; CRYSTAL STRUCTURE OF CF3SF2+SBF6-;
D O I
10.1002/zaac.19936190129
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The preparation of the persulfonium salts (CH3)(CF3)SF3+SbF6- and (CH3)(CF3)2SF2+SbF6- by methylation of the sulfuranes CF3SF3 and (CF3)2SF2 with CH3OSO+SbF6- in liquid SO2 is reported. The thermolabile compounds are characterized by IR, Raman, H-1, C-13, and F-19 NMR spectroscopy. CF3SF2+SbF6- crystallizes in the space group C2/c with a = 16.889(8) angstrom, b = 7.261(4) angstrom, c = t3.416(7) angstrom, beta = 91.08-degrees with 8 formula units per unit cell at 167 K. Cations and anions are connected via short SF contacts forming a V-octahedral surrounding of the central S atom which is in close analogy to the already known CF3SF2+AsF6-.
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页码:174 / 180
页数:7
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