Typically these neutral ligands, with form GaBr3 L and sometimes GaBr3L2, will form a tetrahedral bipyramidal geometric structure with the Br in an equatorial position due to their large effective nuclear charge.
tˈɪpɪkli ðiːz nˈuːtɹəl lˈɪɡændz, wɪð fˈɔːɹm ɡˈɑː bˌiːˈɑːɹ θɹˈiː ˈɛl ænd sˈʌmtaɪmz ɡˈɑː bˌiːˈɑːɹ θɹˈiː ˈɛl tˈuː, wɪl fˈɔːɹm ɐ tˌɛtɹɐhˈiːdɹəl baɪpˈɪɹɐmˌɪdəl dʒˌiːoʊmˈɛtɹɪk stɹˈʌktʃɚ wɪððə bˌiːˈɑːɹ ɪn ɐn ɪkwɐtˈoːɹɪəl pəzˈɪʃən dˈuː tə ðɛɹ lˈɑːɹdʒ ɪfˈɛktɪv nˈuːklɪɹ tʃˈɑːɹdʒ.