The rα structure, chemical shift anisotropy, and the abnormal orientation of methyldichlorophosphine from the NMR spectrum

NMR studies of methyldichlorophosphine have been undertaken in the nematic phase of mixed liquid crystals of opposite diamagnetic anisotropies. The rα structure is derived. The proton chemical-shift anisotropy has been determined from the studies without the use of a reference compound and without a change of experimental conditions. It is shown that the molecule orients in the liquid crystal with positive diamagnetic anisotropy in such a way that the C3 symmetry axis of the CH3P moiety is preferentially aligned perpendicular to the direction of the magnetic field, unlike other similar systems. This is interpreted in terms of the formation of a weak solvent-solute molecular complex. The heteronuclear indirect spin-spin coupling constants are determined. The sign of the two-bond JPH is found to be positive.

Tombstone of David Benjamin; Strangriede Cemetery (R 84.7); Hannover Cemeteries Tombs

Digital Image

Tombstone of H. Solomon; Strangriede Cemetery (R 83); Hannover Cemeteries Tombs

Digital Image

Tombstone of Frederike Benjamin nee Salamon; Strangriede Cemetery (R 83); Hannover Cemeteries Tombs

Digital Image

Tombstone of Herz Benjamin (Naftali); Strangriede Cemetery (R 83.12); Hannover Cemeteries Tombs

Digital Image

Tombstone of Max Molling; Strangriede Cemetery (R 29.10); Hannover Cemeteries Tombs

Digital Image

Tombstone of Marianne Benjamin nee Sussmann; Strangriede Cemetery (R 83.9); Hannover Cemeteries Tombs

Digital Image

Tombstone of Arthur Molling; Strangriede Cemetery (R 26.05); Hannover Cemeteries Tombs

Digital Image

Tombstones of Frederike Benjamin nee Salamon and her husband David Benjamin; Strangriede Cemetery (R 84.6 and R 84.7); Hannover Cemeteries; Tombs

Digital Image

Tombstone of Jeanette Molling nee Benjamin; Strangriede Cemetery (R 26.06); Hannover Cemeteries Tombs

Digital Image

Detail of tombstone of Arthur Molling; Strangriede Cemetery (R 26.05); Hannover Cemeteries Tombs

Digital Image

Tombstones of Sophie Molling and Max Molling (center in shadow); Strangriede Cemetery (R 29.09 and R 29.10); Hannover Cemeteries Tombs

Digital Image

Tombstones of Joseph Benjamin and Marianne Benjamin nee Sussmann; Strangriede Cemetery (R 83.8 and R 83.9); Hannover Cemeteries Tombs

Digital Image

Tombstones of Lea Benjamin nee Levy and Herz Benjamin; Strangriede Cemetery (R 83.11 and R 83.12); Hannover Cemeteries Tombs

Digital Image