The oxynitrides are a group of inorganic compounds containing oxygen and nitrogen not bound to each other, instead combined with other non-metallic or metallic elements. Some of these are oxosalts with oxygen replaced by nitrogen. Some of these compounds do not have a fixed oxygen to nitrogen ratio, but instead form ceramics with a range of compositions. They are in the class of mixed anion compounds.

Many can be formed by heating an oxide or carbonate with ammonia. The hydrogen can assist by reducing some of the oxygen. With higher temperatures and pressures nitrogen can be heated with a mixed oxide to yield a product.[1] Other nitrogen rich compounds that can be heated with oxygen containing material are urea and melamine. For example urea heated with ammonium dihydrogen phosphate yields a phosphorus oxynitride.

There may not be a definite ratio of nitrogen to oxygen, and also nitrogen and oxygen may be disordered, swapping places at random.

Compared to oxides, the oxynitrides have a smaller band gap.[2]

List

name other name formula

properties

reference
aluminium oxynitride ALON transparent, tough
Lithium silicon oxynitride LiSiON Pca21 Wurtzite structure a=5.1986 b=6.3893 c=4.7398 [3]
SiAlON SiAlNO (Li,Mg,Y,Le,Ce,Eu)
Silicon oxynitride
sodium silicon oxynitride NaSiON white Wurtzite structure [3]
Sinoite Si2N2O

mineral

Li14Cr2N8O P3 a=5.799 c=8.263 [3]
NaGeON white Wurtzite structure [3]
potassium germanium oxynitride KGeON yellow Wurtzite structure a=5.7376 b=8.0535 c=5.2173 [3]
(Si,Ge)2N2O [4]
CaTaO2N perovskite [1]
SrTaO2N perovskite [1]
BaTaO2N perovskite [1]
CaNbO2N perovskite [1]
SrNbO2N perovskite [1]
Sr2NbO3N [1]
strontium gallium oxynitride Sr4GaN3O red Pbca a = 7.4002 b = 24.3378 c = 7.4038Å, Z = 8 [5]
Sr3Nb2O5N2 [1]
In32ON17F43 Ia3 a=10.536 fluorite structure
BaNbO2N perovskite [1]
LaTaON2 [1]
LnTiO2N [1]
LnTaO2N [1]
EuTaO2N [1]
EuNbO2N [1]
LnNbO2N [1]
LnVO2N [1]
CaTiO2N [1]
CaZrO2N [1]
LaZrO2N [1]
EuWON2 [1]
Ln2AlO3N [1]
PON PNO

α-quartz, β-cristobalite, or moganite structure

Titanium nickel oxynitride NiTiNO
Chromium oxynitride Cr(N,O)
galloaluminophosphate oxynitride AlGaPON [6]
zinc oxynitride ZnON
Titanium oxynitride TiOxNy [7]
K2Ca2Ta3O9N·2H2O perovskite [2]
K2LaTa2O6N·1.6H2O [2]

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u Fuertes, Amparo (2012). "Chemistry and applications of oxynitride perovskites". Journal of Materials Chemistry. 22 (8): 3293. doi:10.1039/C2JM13182J.
  2. ^ a b c Tang, Ya; Kato, Kosaku; Oshima, Takayoshi; Mogi, Hiroto; Miyoshi, Akinobu; Fujii, Kotaro; Yanagisawa, Kei-ichi; Kimoto, Koji; Yamakata, Akira; Yashima, Masatomo; Maeda, Kazuhiko (2020-07-19). "Synthesis of Three-Layer Perovskite Oxynitride K 2 Ca 2 Ta 3 O 9 N·2H 2 O and Photocatalytic Activity for H 2 Evolution under Visible Light". Inorganic Chemistry. 59 (15): 11122–11128. doi:10.1021/acs.inorgchem.0c01607. ISSN 0020-1669. PMID 32683860. S2CID 220653385.
  3. ^ a b c d e Brese, Nathaniel E.; O'Keeffe, Michael (1992), "Crystal chemistry of inorganic nitrides", Complexes, Clusters and Crystal Chemistry, vol. 79, Berlin/Heidelberg: Springer-Verlag, pp. 307–378, doi:10.1007/bfb0036504, ISBN 978-3-540-55095-2, retrieved 2020-11-11
  4. ^ Kang, Lei; He, Gang; Zhang, Xinyuan; Li, Jiangtao; Lin, Zheshuai; Huang, Bing (2021-05-17). "Alloy Engineering of a Polar (Si,Ge) 2 N 2 O System for Controllable Second Harmonic Performance". Inorganic Chemistry. 60 (10): 7381–7388. arXiv:2009.06932. doi:10.1021/acs.inorgchem.1c00590. ISSN 0020-1669. PMID 33905663. S2CID 231925656.
  5. ^ Mallinson, Phillip M.; Gál, Zoltán A.; Clarke, Simon J. (January 2006). "Two New Structurally Related Strontium Gallium Nitrides: Sr 4 GaN 3 O and Sr 4 GaN 3 (CN 2 )". Inorganic Chemistry. 45 (1): 419–423. doi:10.1021/ic051542q. ISSN 0020-1669. PMID 16390084.
  6. ^ Lee, Eunha; Kim, Taeho; Benayad, Anass; Hur, Jihyun; Park, Gyeong-Su; Jeon, Sanghun (5 April 2016). "High mobility and high stability glassy metal-oxynitride materials and devices". Scientific Reports. 6 (1): 23940. Bibcode:2016NatSR...623940L. doi:10.1038/srep23940. ISSN 2045-2322. PMC 4820723. PMID 27044371.
  7. ^ Braic, Laurentiu; Vasilantonakis, Nikolaos; Mihai, Andrei; Villar Garcia, Ignacio Jose; Fearn, Sarah; Zou, Bin; Alford, Neil McN.; Doiron, Brock; Oulton, Rupert F.; Maier, Stefan A.; Zayats, Anatoly V.; Petrov, Peter K. (24 August 2017). "Titanium Oxynitride Thin Films with Tunable Double Epsilon-Near-Zero Behavior for Nanophotonic Applications". ACS Applied Materials & Interfaces. 9 (35): 29857–29862. doi:10.1021/acsami.7b07660. hdl:10044/1/52727. PMID 28820932. S2CID 206458627.
Categories