Arsenidostannate

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Arsenidostanates are chemical compounds that contain anions with arsenic bonded to tin. They are in the category of tetrelarsenides, pnictidostancates, or tetrelpnictides.

They are distinct from arsenide stannides such as palarstanide, (Pd8(Sn,As)3) where the cation charge exceeds that on the tin or arsenic.[1] Other minerals that contain arsenic and tin are erniggliite[2] and coiraite.[3]

name formula formula

weight

crystal

system

space

group

unit cell volume density comments ref
Li1–xSn2+xAs2, 0.2 < x < 0.4 trigonal R3m a=3.991-4.0244 c=25.592-25.632 Z=3 353.6-358.9 [4]
Na2SnAs2 I41/acd a=14.166, c=21.191, Z = 32 metallic grey [5]
NaSn2As2 rhombohedral R3m a=4.000 c=27.562 metallic; layers [6]
KSn3As3 orthorhombic Pnma Z=4 band gap 0.50 eV [7]
RbSn3As3 orthorhombic Pnma a=10.321, b=4.0917, c=19.570 [7]
Ca5Sn2As6 orthorhombic Pbam a = 13.643, b = 11.830, c = 4.121 Z=2 [8]
α-Sr3Sn2As4 orthorhombic Cmca a = 25.798, b = 12.888, c = 19.124, Z = 24 6358.8 melt 1185K; band gap 0.9 eV [9]
β-Sr3Sn2As4 monoclinic P21/c a = 7.705, b = 19.118, c = 7.688, β = 112.003°, Z = 4 1049.9 dec>800K; band gap 0.9 eV [9]
Sr14Sn3As12 trigonal R3 Z=3 [10]
Ba3Sn4As6 monoclinic P21/n a=8.637, b=18.354, c=9.721, β=90.05°, Z=4 [11]
BaCu6Sn2As4−x tetragonal I4/mmm a = 4.164, c = 24.088 [12]
Ba13Si6Sn8As22 4551.72 tetragonal I42m a = 14.4857, c = 13.5506 Z=2 2843.4 5.316 black; Si4As10 units; band gap 1.0 eV [13]
EuSn2As2 trigonal [14]
Eu14Sn3As12 trigonal R3 Z=3 [10]
Eu11Zn4Sn2As12 3069.46 monoclinic C2/c a = 7.5679, b = 13.0883, c = 31.305, β = 94.8444 Z=4 3089.7 6.599 silver; band gap 0.04 eV; ferromagnetic below 15K; negative colossal magnetoresistance [15]

References

  1. ^ "Palarstanide Mineral Data". webmineral.com. Retrieved 8 December 2021.
  2. ^ "Erniggliite Mineral Data". webmineral.com. Retrieved 8 December 2021.
  3. ^ "Coiraite Mineral Data". webmineral.com. Retrieved 8 December 2021.
  4. PMID 25702752
    .
  5. S2CID 95169843. {{cite journal}}: Check |url= value (help
    )
  6. S2CID 20747874
    .
  7. ^
    doi:10.1016/j.jssc.2016.03.035
    .
  8. ISSN 0044-2313
    .
  9. ^
    ISSN 2052-1553
    .
  10. ^
    PMID 26361335
    .
  11. doi:10.1016/S1293-2558(01)01155-4
    .
  12. S2CID 239061015
    .
  13. PMID 24079277
    .
  14. S2CID 235489681
    .
  15. S2CID 105572581
    .
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