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Crystal data for3: C15H27AsBr3Cl3GaP3 M=791.00 monoclinic a=9.0574(17) b=25.620(5) c=11.665(2)\u2005\u00c5 T=100(2)\u2005K space groupP21\/n Z=4 reflections measured 24\u2009082 6114 unique (Rint=0.0687) which were used in all calculations. The finalR1 [I>2\u03c3(I)] was 0.0410; the finalwR2was 0.1046 (all data). Crystal data for4\u2009b: C47H39BCl2F24P4 M=1265.37 triclinic a=9.9830(4) b=10.1990(4) c=13.3878(5)\u2005\u00c5 T=100(2)\u2005K space groupP1 Z=1 reflections measured 23\u2009415 11\u2009020 unique (Rint=0.0302) which were used in all calculations. The finalR1 [I>2\u03c3(I)] was 0.0349; the finalwR2was 0.0997 (all data). Crystal data for5: C16H30Cl5GaP4 M=593.25 monoclinic a=10.092(4) b=16.196(6) c=16.948(6)\u2005\u00c5 T=100(2)\u2005K space groupP21\/n reflections measured 24\u2009492 6227 unique (Rint=0.0920) which were used in all calculations. The finalR1 [I>2\u03c3(I)] was 0.0469; the finalwR2was 0.1038 (all data). 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