At 297 K, the nB NMR spectrum of a CD2C12 solution of [Ph4AsJ[B6H7] shows one doublet (<5 -18.0 ppm, /= 147 Hz). In the 'H NMR spectrum, two signals are observed (8 —5.5 ppm, broad; 6 + 1.1 ppm. 1 :1:1 :1 quartet). At 223K, the MB NMR spectrum exhibits signals at 6 — 14.1 and —21.7 ppm (relative integrals J : 1). Lowering the temperature has little effect on the 'H NMR spectrum. Draw the solid state structure of [B6H7]~ and rationalize the solution NMR spectroscopic data. The reaction of Ga metal with NH4F at 620 K liberates H2 and NH3 and yields an ammonium salt X in which gallium is in oxidation state +3. The solid stale structure of X consists of discrete cations lying between sheets composed of vertex-sharing GaF6-octahedra; sharing of vertices occurs only in one plane. Suggest an identity for X. Write a balanced equation for the reaction of Ga and NH4F to give X. Explain with the aid of a diagram how the stoichiometry of X is maintained in the solid state structure
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.