6533b7d6fe1ef96bd1266eeb
RESEARCH PRODUCT
Bonding Trends in Lewis Acid Adducts of S4N4 — X-Ray Structure of TeCl4×S4N4.
Tom BajorekRisto S. LaitinenMarkku AhlgrénTristram ChiversJari KonuReijo Suontamosubject
chemistry.chemical_compoundCrystallographychemistrySingle bondTellurium tetrachlorideMoleculeGeneral MedicineLewis acids and basesCrystal structureRing (chemistry)Tetrasulfur tetranitrideAdductdescription
Tetrasulfur tetranitride and tellurium tetrachloride react in dichloromethane to form a 1:1 adduct TeCl4·S4N4 (1). The crystal structure of 1 shows that TeCl4 is bonded to the S4N4 ring through a Te–N linkage. As a consequence, the transannular S···S bonds in S4N4 are broken and the molecule assumes an open, monocyclic conformation. The Te–N bond of 2.16(1) A is slightly longer than the single bond. The S–N bonds span a range of 1.55(1)–1.67(1) A. The adduct 1 was also characterized by mass spectrometry and Raman spectroscopy. The bonding and spectroscopic properties of 1 are compared by DFT calculations at the B3PW91/(RLC ECP) level of theory with those of BF3·S4N4 (2), SO3·S4N4 (3), AsF5·S4N4 (4), SbCl5·S4N4 (5) for which experimental structural information is available. The structural and bonding trends in TeF4·S4N4 (6), TeBr4·S4N4 (7), and SeX4·S4N4 [X = F (8), Cl (9), Br (10)] are also discussed. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-10-31 | ChemInform |