Gallium chloride compound with

GaCl2 Gallium (II) chloride, 4 111 GaCla Gallium (III) chloride, 1 26 GaCls-PCls Gallium (III) chloride, compound with phosphorus (V) chloride, 7 81... 

Gallium(I) chloride reacts with H2 to give GaH2Cl, which can be trapped in a matrix at low temperatures.50 Ga20 and the non-stoichiometric Ga2S are also known GaCp is a highly volatile unstable compound and unlike InCp and TICp is probably monomeric. 

Gallium nonafluorobutanesulfonate (nonaflate) [Ga(ONf)3] (5% mol) shows a very high activity in the acylation of both activated and deactivated aromatic compounds with acyl chlorides without solvent. Some applications are shown in Table 3.12. 

Chloride coordination also seems to be present in the adducts of aluminium chloride and gallium(III) chloride s with acetyl chloride and in compounds of aluminium chloride or titanium(IV) chloride with mesitoyl chloride The corresponding compounds of acetyl chloride may also be considered to be ionic in character at least in solutions of liquid sulphur dioxide i-43 while those of benzoyl chloride are represented by coordination through the oxygen atom of the solvent, as has been shown for ClsSbOCClCeHs both by i.r.-measurements and an X-ray analysis . 

Triflates of aluminum, gallium and boron, which are readily available by the reaction of the corresponding chlorides with triflic acid, are effective Fnedel-Crafis catalysis for alkylation and acylation of aromatic compounds [119, 120] Thus alkylation of toluene with various alkyl halides m the presence of these catalysts proceeds rapidly at room temperature 111 methylene chloride or ni-tromethane Favorable properties of the triflates in comparison with the correspond mg fluorides or chlorides are considerably decreased volatility and higher catalytic activity [120]... 

In contrast to the non-trivial routes for the syntheses of pure aluminum(I) or gallium(I) subhalides, indium(I) chloride or bromide can simply be prepared by melting mixtures of elemental indium and indium trihalides [39]. When these in-dium(I) halides were treated with bulky alkyllithium compounds, deep violet orga-noelement indium dusters (13-18) were obtained [Eq. (3)] [40, 41]. 

Gallium(III) chloride also combines with other metal chlorides such as CaCls or CrCls to form mixed chlorides that have halogen bridge structures i.e., Cl4Ta(-Cl)2. Many such compounds are volatile. 

---