Preparation and structure of (Ph3P)2N[WSF5]

Synthesis, Characterization, and Computational Study of WSF4·NC5H5

“…lations of the vibrational frequencies at the DFT level of theory aided in the assignment of the Raman spectrum. In contrast to WOF 4 , no experimental and theoretical evidence was found for the existence of a WSF 4 ·2NC 5 H 5 adduct. WSF 4 + NC 5 H 5 Ǟ NC 5 H 5 WSF 4 ·NC 5 H 5 (1) The WSF 4 ·NC 5 H 5 adduct is stable at room temperature under exclusion of moisture and is soluble in CH 3 CN and CH 2 Cl 2 yielding orange solutions.…”

“…The new adduct between WSF 4 and pyridine, WSF 4 ·NC 5 H 5 , was prepared by direct combination of WSF 4 and excess pyridine according to Equation (1), followed by removal of excess pyridine in vacuo, yielding a dark brown solid product. lations of the vibrational frequencies at the DFT level of theory aided in the assignment of the Raman spectrum.…”

“…Among transition metal sulfide fluorides, WSF 4 is the most extensively studied sulfide fluoride. [1,2] Recently, a facile synthetic route to pure WSF 4 has been developed in our laboratory, [2] rendering possible the investigation of its chemistry.…”

“…[1,2] Recently, a facile synthetic route to pure WSF 4 has been developed in our laboratory, [2] rendering possible the investigation of its chemistry. Although no systematic study has looked at the fluoride-ion acceptor properties of WSF 4 , the Lewis acidity of WSF 4 towards fluoride ions has been documented by the NMR spectroscopic observation of the WSF 5 anion [3] and the crystal structure of [(Ph 3 P) 2 N][WSF 5 ]·CH 3 CN. [4] The Lewis-acid behaviour of WSF 4 towards nitrogen bases has only been documented by the formation of the WSF 4 ·CH 3 CN adduct.…”

“…Although no systematic study has looked at the fluoride-ion acceptor properties of WSF 4 , the Lewis acidity of WSF 4 towards fluoride ions has been documented by the NMR spectroscopic observation of the WSF 5 anion [3] and the crystal structure of [(Ph 3 P) 2 N][WSF 5 ]·CH 3 CN. [4] The Lewis-acid behaviour of WSF 4 towards nitrogen bases has only been documented by the formation of the WSF 4 ·CH 3 CN adduct. [1,2] In contrast to its oxide analogue, WOF 4 , [5] Lewis-acid-base adducts with nitrogen bases having sp 2 hybridized nitrogen atoms, such as pyridine, are unknown prior to this study.…”