Indiums redistribution

Figure 3 shows the electron density distribution between the nearest In and P atoms along the [111] direction in the (110) plane of InP. The dashed curves represent the electron densities on the opposite sides of the In and the P atoms. It is evident from Fig. 3 that the electron density between the nearest indium and phosphorus atoms in hiP fell to a minimum value of 0.35 0.05 electron/A , i.e., an "electron density bridge" typical of covalent bonds was observed between these atoms. An analysis of our structure foctors Fp, particularly of the difference-type structure amplitudes correspondii to small values of (sin y) A, which were most sensitive to the redistribution of electrons between atoms in compounds, indicated an appreciable ionicity... 

The organogailium halides resemble the aluminium compounds closely. They can be made by redistribution between RjGa and GaClj. Indium reacts very slowly with alkyl bromides and iodides to give mixtures of RlnX and R InX which analyse as RjIn Xj. Melnl can also be made from Ini and Mel at room temperature. Solid Me InCl consists of units stacked one above the other, so that the indium atoms are five coordinate. 

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