Arsenidogermanates are chemical compounds that contain anions with arsenic bonded to germanium. They are in the category of tetrelarsenides, pnictidogermanates, or tetrelpnictides.
Germanium forms two arsenides: GeAs and GeAs2.
List nameformulaformula weightcrystal systemspace groupunit cellvolumedensitycommentsrefLiGe3As3orthorhombicPbama=10.0862 b=15.7612 c=3.7403 Z=4594.605.01Li5GeAs3blackNaGe6As6908.05monoclinicC2/ma = 22.063, b = 3.8032, c = 7.2020, β = 92.744°, Z = 2603.645.00needlesNa10Ge2As6monoclinicP121/n1a=13.531 b=7.544 c=8.298 β = 90.2° Z=2847.0K2GeAs2orthorhombicIbama = 13.292, b = 7.028, c = 6.548 Z = 4moisture sensitive needlesKGe3As3481.53orthorhombicPnmaa=9.993, b=3.7664, c=18.607 Z=4700.344.568K2Ge3As3520.73orthorhombicPnnma=14.1466 b=16.300 c=3.7489 Z=4864.474.001fibrous metallicK2NaGaAs2Ibama=6.733 b=14.809 c=6.574 Z=4655.53.250KCdGeAs2triclinicPa = 8.004, b = 8.402, c = 8.703, α = 71.019°, β = 75.257°, γ = 73.746°, Z=4band gap 0.8 eV; Ge2As6 unitsRbCdGeAs2triclinicPa = 8.269, b = 8.452, c = 8.735, α = 71.163°, β = 75.601°, γ = 73.673°, Z=4Ge2As6 unitsSr3Ge2As4red metallic; 1D As3Ge-GeAs3 unitsK5In5Ge5As14monoclinicC2/ma=40.00,b=3.925,c=10.299, β=99.97°, Z=815924.55air sensitive; layeredK8In8Ge5As17monoclinicP21/ca=18.394,b=19.087,c=25.360, β=105.71°, Z=485714.45air sensitive; layeredRbGe3As3528orthorhombicPnmaa=10.166 b=3.7595 c=19.028 Z=4727.24.823Rb(Ge1.5In0.5)As2(As1.5Ge0.5)orthorhombicCmc21a = 3.799, b = 16.50, c = 12.24, Z = 47674.589RbXGe2−XInXAs4SrGe8As10orthorhombicCmcaa=14.5614 b=10.6452 c=11.4283 Z=41771.55.315I8As21Ge254403cubicPmna=10.5963 Z=11189.86.1431colourlessCs5GeAs3metallic; unstable in air; GeAs3 unitsBaGe2As2tetragonalP42mca=7,786 c=8.664 Z=4525.25.47metallicBa4GeAs4dark metallic; GeAs4 unitsBaGe8As10orthorhombicCmcaa=14.5799 b=10.7164 c=11.5518 Z=41804.95.400Re3Ge0.6As6.4Re3GeAs61080.75cubicImma = 8.73202 Z=4665.7510.78n-type semiconductorAuGeAsmonoclinicCca 7.2729, b 6.2953, c 6.3067, β 119.209°KXGe2−XTlXAs4
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