23273-29-2Relevant academic research and scientific papers
Carbon-13 nuclear magnetic resonance study of phenyl derivatives of B, Si, Sn, P, and Te fluorides
Wang, Chengrui,Mo, Yuxiang,Jang, Meehae,Janzen, Alexander F.
, p. 525 - 528 (2007/10/02)
(13)C nuclear magnetic resonance data for a variety of phenyl derivatives of boron, silicon, tin, phosphorus, and tellurium fluorides are presented.Neutral, anionic, and cationic complexes are included and the coordination number of the central element varies from 3 to 6.Empirical equations of the (13)C chemical shifts of the benzene ring have been deduced by taking into consideration the charge density, dipole moment, and binding energy, and the (13)C chemical shifts calculated from these equations deviate from the experimental values by up to 1.4 ppm, but mostly less than 0.7 ppm.
The conductance of some haloborate and boronium salts in acetonitrile at 25°
Ahmed, Ismail Y.,Schmulbach
, p. 1411 - 1413 (2007/10/05)
The molar conductances of tetraethylammonium salts of phenyltrichloroborate, tetrabromoborate, and tetraiodoborate and of bis(pyridine)diphenylboronium bromide and boron triiodide-bis(pyridine) in acetonitrile are reported. Tetraethylammonium phenyltrichloroborate and tetraethylammonium tetrabromoborate behave as strong 1:1 electrolytes with no detectable ion-pair association. The ionization mechanism (C2H5)4NBI4(s) = (C2H5)4N+ + BI2(CH3CN)n+ + 2I- is proposed to account for the extraordinarily high limiting molar conductance for tetraethylammonium tetraiodoborate. Infrared spectral studies and other conductance data are presented to support this explanation. The molar conductances of bis(pyridine)diphenylboronium bromide and boron triiodide-bis(pyridine) are typical of strong 1:1 electrolytes. Limiting single-ion conductances are given for (C6H5)BCl3-, BBr4-, (C6H5)2B(C5H5N) 2+, and BI2(C5H5N)2+.
