The reaction of gallium metal with (p-MeOC₆H₄)₃AsI₂and Et₃AsI₂; isolation of a novel gallium(II) arsine complex with a gallium–gallium bond and the X-ray crystal structures of GaI₃[(p-MeOC₆H₄)₃As] and Ga₂I₄(AsEt₃)₂

Abstract

The reactions of @-MeOC6H4)3A~12 and Et3AsI2 with gallium metal powder produce the metal complexes Ga13[ @-MeOC6H4)3A~] and Ga214(AsEt&, respectively; the latter represents a unique example of a gallium-tertiary arsine complex containing a gallium-gallium bond, and both structures illustrate the subtle effect of the organic substituent on the arsenic atoms.

Coordination chemistry of the main group elements with phosphine, arsine and stibine ligands

“…The structure reveals a planar Ga 8 ring with two galliums bridged by iodides, and the remaining six gallium centres coordinated to terminal iodide and PEt 3 groups (Fig. 24) [187]. The Ga-Ga bonds are very similar along the series of dimers (∼2.43Å), although slightly longer (2.45(1), 2.46(1)Å) in the Ga 3 complex.…”

The Reactivity of Primary and Secondary Amines, Secondary Phosphanes and N‐Heterocyclic Carbenes towards Group‐13 Metal(I) Halides

“…[3] These reactions, however, led to partial disproportionation and the facile formation of the gallium() iodide complexes [Ga 2 I 4 (PR 3 ) 2 ] (R ϭ Et or Ph), and the mixed oxidation state complex [Ga 3 I 5 (PEt 3 ) 3 ], all of which were crystallographically characterised. It is noteworthy that only two other neutral gallium() iodide adducts [Ga 2 I 4 (L) 2 ] (L ϭ NEt 3 [4] or AsEt 3 [5] ), which were prepared by alternative routes, have been structurally authenticated.…”

The reactivity of gallium(i) and indium(i) halides towards bipyridines, terpyridines, imino-substituted pyridines and bis(imino)acenaphthenes

“…6 It is noteworthy that others have seen similar reactivity with tertiary amines, 7 phosphines 8 and arsines. 9 In the present study we have expanded on this work by examining the reactivity of several unsaturated bi-and tridentate N-donor ligands towards '' GaI '' and InCl in the hope of preparing new complexes that could be used as precursors to group 13 N-heterocyclic carbene analogues. In all cases, disproportionation and formation of M(III) complexes occurred, though considerable variations in reactivity and complex type formed were observed for the ligand classes investigated.…”