Arsenidosilicate Explained
Arsenidosilicates are chemical compounds that contain anions with arsenic bonded to silicon. They are in the category of tetrelarsenides, pnictidosilicates, or tetrelpnictides. They can be classed as Zintl phases or intermetallics. They are analogous to the nitridosilicates, phosphidosilicates, arsenidogermanates, and arsenidostannates. They are distinct from arsenate silicates which have oxygen connected with arsenic and silicon, or arsenatosilicates with arsenate groups sharing oxygen with silicate.
Arsenidosilicates have dark coloured crystals, usually metallic black. They are often decomposed by water, and some are unstable with respect to the water in air.
These compounds have been investigated as ionic conductors, semiconductors and photovoltaics.
List
| name | formula | formulaweight | crystal system
| space group
| unit cell | volume | density | comments | ref |
|---|
| Li2SiAs2 | | tetragonal | I41/acd | a=12.563 c=19.390 | | | red; air sensitive; Si4As10 units | [1] |
| LiSi3As6 | | orthorhombic | Cmca | a=14.244 b=11.247 c=10.757 | | | water and acid stable | |
| Li5SiAs3 | | | C2/c | | | | black, hydrolysed by water | [2] |
| Li3Si7As8 | | monoclinic | P2/m | a=8.9904 b=3.7154 c=11.6023 β=96.307 Z=1 | 385.21 | 3.52 | layered; moisture sensitive | [3] |
| NaSi3As3 | | | | a=10.002 b=18.54 c=3.648 | | | | [4] |
| MgSiAs2 | 202.24 | | I2d | a=5.9078 c=10.600 Z=4 | 369.96 | 3.63 | | [5] |
| Mg3Si6As8 | 840.33 | cubic | P4332 | a=11.600 Z=4 | 1560.9 | 3.58 | red | |
| K2SiAs2 | | | Ibam | a=13.132 b=6.999 c=6.340 Z=4 | | | golden; explosive decomposition; air sensitive; CAS No=108945-44-4 | [6] |
| KSi3As3 | | | Pbam | a=10.010b=19.139 c=3.664 Z=4 | | | purple; 2D framework | |
| Sr3Si2As4 | | | | | | | metallic red; chains | [7] |
| CdSiAs2 | | tetragonal | I2d | a = 5.884 c = 10.882 Z=8 | | | | [8] |
| Cd7SiAs6 | 1264.41 | cubic | P213 | a=10.9820 Z=4 | 1324.5 | 6.343 | black | [9] |
| Cs0.16SiAs2 | | | | | | | water stable | |
| Cs2SiAs2 | | orthorhombic | Ibam | a=7.571 b=14.425 c=6.42 | | | water sensitive | [10] |
| Cs5SiAs3 | | orthorhombic | Pnma | a=14.467 b=6.043 c=15.82 | | | dark red metallic; air sensitive; planar | [11] |
| Cs0.11Zn0.05Si0.95As | 119.39 | monoclinic | C2/m | a=35.201 b=3.6649 c=9.9848 β=91.863° Z=24 | 1287.4 | 3.70 | black | [12] |
| Ba4SiAs4 | | | | | | | dark metallic; unstable in air | [13] |
| BaCuSi2As3 | | | P n m a | a 13.169 b 10.502 c 4.615 | | | thermal insulate, electrical conductor | [14] |
| Ba13Si6Sn8As22 | 4551.72 | tetragonal | I2m | a = 14.4857, c = 13.5506 Z=2 | 2843.4 | 5.316 | black; Si4As10 units; band gap 1.0 eV | [15] |
| LaSiAs3 | | orthorhombic | Pbca | a=6.0855 b=5.9837 c=26.2279 Z=8 | | | | [16] |
| LaSiAs3 | | orthorhombic | Pn21a | a=6.0498 b=5.9545 c=26.383 Z=8 | | | | |
| CeSiAs3 | | orthorhombic | Pn21a | a=5.998 b=5.906 c=26.231 Z=8 | | | | |
| PrSiAs3 | | orthorhombic | Pn21a | a = 5.949, b = 5.877, c = 26.149 Z=8 | | | | |
| AuSiAs | | monoclinic | Cc | a 7.2000 b 6.1614 c 6.1646, β =119.135° | | | | [17] |
|
Notes and References
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- Juza. Robert. Schulz. Werner. February 1954. Ternäre Phosphide und Arsenide des Lithiums mit Elementen der 3. und 4. Gruppe. Zeitschrift für anorganische und allgemeine Chemie. de. 275. 1–3. 65–78. 10.1002/zaac.19542750107. 0044-2313.
- Mark. Justin. Hanrahan. Michael P.. Woo. Katherine E.. Lee. Shannon. Rossini. Aaron J.. Kovnir. Kirill. 2019-05-02. Chemical and Electrochemical Lithiation of van der Waals Tetrel‐Arsenides. Chemistry – A European Journal. en. 25. 25. 6392–6401. 10.1002/chem.201900339. 30887569. 1526289 . 83463348. 0947-6539.
- Hurng. Weir Mirn. Corbett. John D.. Wang. Sue Lein. Jacobson. Robert A.. July 1987. A Zintl phase with a layered network structure, potassium silicon arsenide (KSi3As3). Inorganic Chemistry. en. 26. 15. 2392–2395. 10.1021/ic00262a012. 0020-1669.
- Woo. Katherine E.. Wang. Jian. Wu. Kui. Lee. Kathleen. Dolyniuk. Juli‐Anna. Pan. Shilie. Kovnir. Kirill. July 2018. Mg-Si-As: An Unexplored System with Promising Nonlinear Optical Properties. Advanced Functional Materials. en. 28. 30. 1801589. 10.1002/adfm.201801589. 104074348 . 1616-301X.
- Hurng. Weir Mirn. Peterson. Eric S.. Corbett. John D.. November 1989. Synthesis and structure of the Zintl phase potassium silicon arsenide, K2SiAs2. Inorganic Chemistry. en. 28. 22. 4177–4180. 10.1021/ic00321a029. 0020-1669.
- Eisenmann. Brigitte. Schäfer. Herbert. June 1980. Zintl Phases with Complex Anions: Sr 3 Si 2 As 4 and Sr 3 Ge 2 As 4. Angewandte Chemie International Edition in English. en. 19. 6. 490–491. 10.1002/anie.198004901.
- Web site: MatWeb – The Online Materials Information Resource. 2021-12-08. www.matweb.com.
- Li . Chunxiao . Liu . Youquan . Liu . Wenhao . Liu . Juhe . Meng . Xianghe . Lin . Zheshuai . Yao . Jiyong . Cd 7 SiAs 6, a Nonchalcopyrite Arsenide with a Strong Nonlinear-Optical Response . Inorganic Chemistry . 2 December 2021 . 60 . 24 . 18634–18638 . 10.1021/acs.inorgchem.1c03446. 34854683 . 244800044 .
- Book: Villars. Pierre. Handbook. Cenzual. Karin. Gladyshevskii. Roman. 2017-07-24. Walter de Gruyter GmbH & Co KG. 978-3-11-043655-6. 859. en.
- Eisenmann. Brigitte. Klein. Jürgen. Somer. Mehmet. January 1990. Anions Isosteric with CO32− in Cs5SiP3, Cs5SiAs3, Cs5GeP3, and Cs5GeAs3. Angewandte Chemie International Edition in English. en. 29. 1. 87–88. 10.1002/anie.199000871. 0570-0833.
- Mark. Justin. Woo. Katherine E.. Zhu. Weidi. Ji. Bingheng. Lee. Shannon J.. Adeyemi. Adedoyin N.. Sen. Sabyasachi. Kovnir. Kirill. 2021-06-22. Two-Dimensional and Three-Dimensional Tetrel-Arsenide Frameworks Templated by Li and Cs Cations. Chemistry of Materials. en. 33. 12. 4586–4595. 10.1021/acs.chemmater.1c01053. 236258955. 0897-4756.
- Eisenmann. Brigitte. Jordan. Hanna. Schäfer. Herbert. February 1981. Ba4SiAs4, and Ba4GeAs4, Zintl Phases with Isolated SiAs48− and GeAs48− anions. Angewandte Chemie International Edition in English. en. 20. 2. 197–198. 10.1002/anie.198101972. 0570-0833.
- Yox. Philip. Lee. Shannon J.. Wang. Lin-lin. Jing. Dapeng. Kovnir. Kirill. 2021-04-19. Crystal Structure and Properties of Layered Pnictides BaCuSi 2 Pn 3 (Pn = P, As). Inorganic Chemistry. en. 60. 8. 5627–5634. 10.1021/acs.inorgchem.0c03636. 33794094. 232762736. 0020-1669.
- Liu. Xiao-Cun. Lin. Na. Wang. Jian. Pan. Ming-Yan. Zhao. Xian. Tao. Xu-Tang. Xia. Sheng-Qing. 2013-10-21. Ba 13 Si 6 Sn 8 As 22 : A Quaternary Zintl Phase Containing Adamantane-Like [Si 4 As 10 ] Clusters]. Inorganic Chemistry. en. 52. 20. 11836–11842. 10.1021/ic402023z. 24079277. 0020-1669.
- Hayakawa. H. Ono. S. December 1988. Studies on syntheses and conditions of formation for LnSiAs3 compounds (Ln ≡ La, Ce, Pr). Journal of the Less Common Metals. en. 144. 2. 177–194. 10.1016/0022-5088(88)90130-0.
- Lee. Shannon J.. Won. Juyeon. Wang. Lin‐Lin. Jing. Dapeng. Harmer. Colin P.. Mark. Justin. Akopov. Georgiy. Kovnir. Kirill. 2021-05-06. New Noncentrosymmetric Tetrel Pnictides Composed of Square‐Planar Gold(I) with Peculiar Bonding. Chemistry – A European Journal. en. 27. 26. 7383–7390. 10.1002/chem.202005312. 33523500. 8251799. 0947-6539.
