N-(Diphenylselenio)diphenylsulfimidium tetraphenylborate.
نویسندگان
چکیده
The title compound, C24H20NSSe+.C24H20B-, exhibits disorder (S/Se scrambling) of the chalcogen sites within the S-N-Se triad. Similar disorder was observed in the bromide salt [Aucott, Bailey, Elsegood, Gilby, Holmes, Kelly, Papageorgiou & Pedron-Haba (2004). New J. Chem. pp. 959-966]. The S-N and Se-N bond lengths are 1.6735 (15) and 1.8045 (14) A, respectively. Whereas the chalcogens in the bromide salt are involved in S...Br and Se...Br interactions of very similar distances, the scrambled S and Se sites in the title compound are involved in distinct non-bonded interactions. The site predominantly occupied by sulfur is involved in C-H...S/Se interactions, while the site predominantly occupied by selenium is involved in Se/S...pi interactions.
منابع مشابه
Isolation and stable nitrogen isotope analysis of ammonium ions in ammonium nitrate prills using sodium tetraphenylborate.
RATIONALE Because of the threat of bombings using improvised explosives containing ammonium nitrate (AN), law enforcement and intelligence communities have been interested in stable isotope techniques for tracking and discriminating AN sources. Separate analysis of the AN component ions ammonium and nitrate would add discriminatory power to these techniques. METHODS Ammonium ions in dissolved...
متن کاملNMO⋅TPB: a selectivity variation on the Ley-Griffith TPAP oxidation.
A non-hygroscopic tetraphenylborate salt of N-methylmorpholine-N-oxide (NMO) is reported (NMO⋅TPB), which modulates the standard Ley-Griffith oxidation such that benzylic and allylic alcohols are oxidised selectively. An attractive feature of this new protocol is that anhydrous conditions are not required for this selective tetra-n-propylammonium perruthenate (TPAP) oxidation, superseding the r...
متن کاملComplexation of N- Heteroaromatic Cations with Crown Ethers and Tetraphenylborate
Study was made of host-guest complexation of neutral crown ethers with fiveand six-membered Nheteroaromatic cations and purinium cation. Complexation of tetraphenylborate with selected Nheteroaromatic cations and tropylium cation also was studied. Crown ether complexes were characterized by mass spectrometric and 1H NMR spectrometric methods and by X-ray crystallography. Fast atom bombardment m...
متن کامل2-Dimethylamino-1-(2-ethoxy-2-oxoethyl)-3-methyl-3,4,5,6-tetrahydropyrimidin-1-ium tetraphenylborate
Isolated guanidinium ions and tetra-phenyl-borate ions are present in the crystal structure of the title compound, C(11)H(22)N(3)O(2) (+)·C(24)H(20)B(-). In the guanidinium ion, the dihedral angle between the N/C/N and C/C/C planes being 49.9 (1)°. The six-membered ring exhibits a half-chair conformation. The C-N bond lengths in the cation range between 1.3335 (16) and 1.3552 (16) Å, indicating...
متن کاملStructure and Molecular Motions in Rubidium Tetraphenylborate
By X-ray diffraction it was found that at 293 K the crystals of rubidium tetraphenylborate are tetragonal, space group I4̄2m, a = b = 11.212(2) Å, c = 8.098(2) Å, with 2 molecules of Rb[C24H20B] # in the unit cell. The molecular reorientations as functions of temperature were studied by H NMR. Two types of motions were detected: an anisotropic reorientation of the tetraphenylborate anions about ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Acta crystallographica. Section C, Crystal structure communications
دوره 61 Pt 2 شماره
صفحات -
تاریخ انتشار 2005