Leach Erin G, Kulesza Alyssa A, Staples Richard J, Biros Shannon M
Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA.
Center for Crystallographic Research, Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA.
Acta Crystallogr E Crystallogr Commun. 2015 Apr 22;71(Pt 5):523-7. doi: 10.1107/S2056989015006994. eCollection 2015 May 1.
The title compounds, C20H16ClO2P, (I), and C18H21O2P, (II), were synthesized via an Arbuzov reaction between an α-bromo-ketone and isopropoxydi-phenyl-phosphane. In the crystals of both compounds, mol-ecules are linked via bifurcated C-H⋯(O,O) hydrogen bonds, forming chains propagating along [100] for (I) and along [010] for (II). The chains are linked via C-H⋯π inter-actions, leading to the formation of sheets lying parallel to (010) for (I) and (001) for (II). The absolute structure of compound (II) was determined by resonant scattering [Flack parameter = 0.088 (14)].
