Dealkanative Main Group Couplings across the peri-Gap
作者:Laurence J. Taylor、Michael Bühl、Brian A. Chalmers、Matthew J. Ray、Piotr Wawrzyniak、John C. Walton、David B. Cordes、Alexandra M. Z. Slawin、J. Derek Woollins、Petr Kilian
DOI:10.1021/jacs.7b08682
日期:2017.12.27
appears to be radical in nature, with the addition of small quantities of a radical initiator (azobis(isobutyronitrile)) increasing the rate dramatically, as well as altering the apparent order of reaction. DFT calculations suggest that the reaction involves dissociation of a phosphorus centered radical (stabilized by the peri-backbone) to the P-P coupled product and a free propylradical, which carries
A structural study of 1,8-bis(dimethyl phosphonito) naphthalene and related crowded chalcogeno derivatives
作者:Petr Kilian、Alexandra M. Z. Slawin、J. Derek Woollins
DOI:10.1039/b310392g
日期:——
1,8-Bis(dimethylphosphonito) naphthalene Nap[P(OMe)2]2 (Nap = naphthalene-1,8-diyl) and a complete series of its mono- and di-oxidized phosphonato counterparts Nap[P(E)(OMe)2]2 (E = O, S, Se, lone pair and all their permutations) were prepared and fully characterized by X-ray crystallography and multinuclear NMR, IR, Raman and MS. Molecular distortion due to non-bonded substituent interactions was
Naphthalene-1,8-diyl Bis(Halogenophosphanes): Novel Syntheses and Structures of Useful Synthetic Building Blocks
作者:Petr Kilian、Alexandra M. Z. Slawin、J. Derek Woollins
DOI:10.1002/chem.200390015
日期:2003.1.3
structure determinations reveal a twisted geometry of the naphthalene ring in sterically strained 2 and 4, whilst the presence of a P-P bond in 5 results in the release of the steric strain and generation of the planar NapP(2) moiety. Although the tetrahedral P environments are severely distorted the sigma(3)P-sigma(3)P bonding in 5 represents a newtype of P-P bonding environment in 1,8-diphosphanaphthalenes
Use of Molecular Scaffolding for the Stabilization of an Intramolecular Dative P
<sup>III</sup>
‐P
<sup>V</sup>
System
作者:Petr Kilian、Douglas Philp、Alexandra M. Z. Slawin、J. Derek Woollins
DOI:10.1002/ejic.200390033
日期:2003.1
to the ionic phosphonium salt-phosphorane form [Nap(PCl3)(PCl2)][Cl] 4. Electronicstructure calculations were performed at the B3LYP/6−31G(d,p) level of theory on structures 2 and 3; structure 3 was located as a local minimum on the potential energy surface, 15 kcal·mol−1 higher in energy than structure 2. The crystalstructure and calculated P−P distances are 2.34 and 2.31 A for 2 and 3, respectively