LOW OXIDATION STATE GROUP 15 ELEMENTS AS PNICTA-WITTIG REAGENTS

Abstract

We have synthesized a new As(I) salt and performed a Density Functional Theory investigation into the use of such compounds as pnicta-Wittig reagents.

Keywords:

• Arsenic
• DFT
• low oxidation state
• phosphorus
• Wittig

Notes

*Melting point: 122–123°C, ³¹P{1H} NMR: δ = 61.7 (s).

*Crystal data for 3·2CH₂Cl₂: C₂₇H₂₆AsCl₅P₂Sn_0.5, triclinic, P-1, a = 10.8800(7), b = 11.6470(7), c = 12.9540(8) Å, α = 69.144(1)° β = 79.827(1)°, γ = 81.868(1)°, V = 1504.3(2) ų, Z = 2, D_calcd = 1.598 g cm⁻³, μ (Mo Kα) = 2.102 mm⁻¹. A total of 13,130 reflections was collected in the range 3.76 < 2θ < 55.00. Of these, 6,553 were considered observed (I > 2.0σ(I)); wR2 = 0.1020, R = 0.0518. CCDC 218386 contains the supplementary crystallographic data for this article. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/retrieving.html (or from the CCDC, 12 Union Road, Cambridge CB2 1EZ, UK; fax: [phone]; E-mail: [email protected])