Germanide halides are compound that include the germanide (Ge4−) anion and a halide such as chloride (Cl−), bromide (Br−) or iodide (I−). They include germanide iodides, germanide bromides or germanide chlorides. They can be considered as mixed anion compounds. They are in the category of tetrelidehalides. Related compounds include the silicide iodides, and carbide iodides.
List Chlorides formulasystemspace groupunit cell ÅvolumedensitycommentrefLa3Cl2Ge3monoclinicC2/ma=18.047 b=4.927 c=10.739 β=98.25 Z=4824.25.685air and water sensitive Bromides formulasystemspace groupunit cell ÅvolumedensitycommentrefBr2Ge3La3monoclinicC2/ma =18.622 b =4.3263 c =10.897 β =98° Z=4869.46.069air and water sensitiveGd2GeBr2trigonalRma = 4.1442, c = 29.487Gd2GeBr2trigonalPm1a = 4.1668, c = 9.8173semiconductor Iodides formulasystemspace groupunit cell ÅvolumedensitycommentrefY2GeI2trigonalRma = 4.2135 c = 31.480 Z=34845.19bronzeGeI2La2trigonalPm1a=4.45 c=10.868 Z=1186.463.381air and water sensitiveGeI2La2trigonalRma=4.465 c=32.591 Z=3562.75.349air and water sensitiveGe2I2La2trigonalPm1a=4.272 c=11.8349 Z=1187.116.006air and water sensitiveGeI3La3cubicI4132a=12.6036 Z=82002.15.773air and water sensitiveGe3I5La6monooclinicC2/ma=19.338 b=4.423 c=14.895, β=128.16° Z=21001.75.589air and water sensitiveGeI12La7trigonalRa=16.122 c =10.768 Z=32423.85.487air and water sensitiveGd2GeI2trigonalRma = 4.2527 c = 31.657 Z=3495.846.44bronze
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