Synthesis, structure and reactivity of a terminal magnesium fluoride compound, [Tp^But,Me]MgF: hydrogen bonding, halogen bonding and C–F bond formation

Abstract

The terminal magnesium fluoride compound, [TpBut,Me]MgF, serves as a hydrogen bond and halogen bond acceptor for indole and C6F5I, and also reacts with Ph3CCl to form a C–F bond.

A Comparative Study on the Thermodynamics of Halogen Bonding of Group 10 Pincer Fluoride Complexes

“…The formation of XB adducts can thus be readily monitored by NMR spectroscopy and the thermodynamics of the interactions can be quantified using the 19 F NMR shift of the metal fluoride. Parkin and co‐workers reported halogen bonding of magnesium and zinc fluoride complexes (Figure ) with iodopentafluorobenzene, C 6 F 5 I, which was found to be an excellent XB donor due to the presence of a perfluorinated aryl ring and the resulting high Lewis acidity of the iodine donor atom. A more systematic study of halogen bonding of late‐transition‐metal fluorides was presented by Perutz and Brammer who used a series of Group 10 bis(phosphine) complexes that form monofluorides upon C−F activation of fluorinated aromatics such as hexafluorobenzene and fluorinated pyridines (Figure ).…”

Self-complementary nickel halides enable multifaceted comparisons of intermolecular halogen bonds: fluoride ligands vs. other halides

“…This conclusion is supported by related work showing that zinc and magnesium fluoride complexes behave analogously. 39 , 40 …”

Synthesis and structural characterization of tris(pyrazolyl)hydroaluminate and tris(pyrazolyl)hydrogallate lithium compounds

“…[(pz Bu t ,Me )AlTp Bu t ,Me ]Li (Figure 2, Table 2) 121.9384 12d(E-N21)/Å 1.552(2) 1.8757 111.9384 (12) bd(E-N31)/Å 1.5496 191.8840 121.9384 12 33.003(2) 3.040 5N12-Li-N22/˚ 96.52 (12) 103.09 (11) 104.01 15N12-Li-N32/˚ 97.42 (12) 100.38 (11) 104.01 (15) bN22-Li-N32/˚ 99.91 (12) 104.33 (11) 104.01 15 N11-E-N21/˚ 110.15 (12) 105.95 (5) 102.45 4N11-E-N31/˚ 109.62 (12) 105.81 (5) 102.45(4) b…”

“…N21-E-N31/˚ 108.55 (11) 102.85 (5) 102.45 4 [(pz Bu t ,Me )AlTp Bu t ,Me ]Li [(pz Bu t ,Me ) 2 AlBp Bu t ,Me ]Li(THF) (Table 3). 21,22 The increase in average Al-N bond length compared to the B-N bond length (0.33 Å), however, is less than that predicted by either the Alvarez (0.45 Å)…”