Iodate nitrate

Iodate nitrates are mixed anion compounds that contain both iodate and nitrate anions.

## Giant birefringence

Iodate nitrates can have high birefringence. The scandium salt has a giant birefringence of 0.348 at 546 nm. When discovered in 2021 it was a record high birefringence for oxyanion compounds, but it was exceeded by CeF2(SO4) just a month later with a value of 0.361[1] and sodium hydrogen squarate hydrate, NaHC4O4·H2O with a value of 0.52 at 1064 nm.[2] All of these are beaten by hexagonal boron nitride (h-BN) with birefringence of 0.7 in visible light.[3]

## List

formula  | name  | formula

weight

| system  | space group  | cell Å  | volume  | density  | comments  | ref

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Al(IO3)2NO3•6H2O  | aluminium diiodate nitrate hexahydrate  |  | hexagonal  | P321  | a=6.764 c=8.09 Z=1  |  |  |  | [4]
KIO3•KNO3•2HIO3 | dipotassium dihydrogen triiodate nitrate  |  | orthorhombic  | P212121 | a=7.109 b=10.638 c=15.5  |  |  |  | [5]
Sc(IO3)2(NO3)  | scandium diiodate nitrate  | 1370.31  | trigonal  | R32  | a=5.3536 c=23.567 Z=1  | 584.96  | 3.890  | colourless; giant birefringence 0.348 at 546 nm; SHG 4.0×KDP; UV edge 298 nm; stable to 360°C  | [6]
In(IO3)2(NO3)  | indium diiodate nitrate  | 526.63  | trigonal  | R32  | a=5.2165 c=24.195, γ=120° Z=3  | 570.2  | 4.601  | colourless  | [7]
[In(IO3)(OH)(H2O)](NO3)  |  | 386.75  | monoclinic  | P21/n | a=5.5756 b=16.410 c=7.734, β=109.95 Z=4  | 665.2  | 3.862  | colourless  | [7]
La(IO3)2(NO3)  | lanthanum diiodate nitrate  |  | trigonal  | P3121  | a=7.1002 c=38.177 Z=9  |  |  | SHG 0.6 × KDP; band gap 4.23 eV  | [8]
Ce(IO3)2(NO3)  | cerium diiodate nitrate  | 551.93  | trigonal  | P3121  | a=7.0537 c=37.972 Z=9  | 1639.8  | 5.030  | SHG 1 × KDP  | [9]
α-Th(IO3)2(NO3)(OH)  |  |  | triclinic  | P1 | a=6.9581 b=7.2294 c=9.8989 α=68.896° β=88.759° γ=66.620°  |  |  |  | [10]
β-Th(IO3)2(NO3)(OH)  |  |  | orthorhombic  | Pbca | a=7.1459 b=14.140 c=16.612  |  |  |  | [10]

## References

1. ↑ Wu, Chao; Wu, Tianhui; Jiang, Xingxing; Wang, Zujian; Sha, Hongyuan; Lin, Lin; Lin, Zheshuai; Huang, Zhipeng et al. (2021-03-24). "Large Second-Harmonic Response and Giant Birefringence of CeF 2 (SO 4 ) Induced by Highly Polarizable Polyhedra" (in en). Journal of the American Chemical Society 143 (11): 4138–4142. doi:10.1021/jacs.1c00416. ISSN 0002-7863. PMID 33625206. Bibcode: 2021JAChS.143.4138W. https://pubs.acs.org/doi/10.1021/jacs.1c00416.
2. ↑ Zhang, Xiaodong; Cao, Dongxu; Yang, Daqing; Wang, Ying; Wu, Kui; Lee, Ming-Hsien; Zhang, Bingbing (2022-04-04). "Finding the First Squarates Nonlinear Optical Crystal NaHC 4 O 4 ·H 2 O with Strong Second Harmonic Generation and Giant Birefringence" (in en). ACS Materials Letters 4 (4): 572–576. doi:10.1021/acsmaterialslett.2c00114. ISSN 2639-4979. https://pubs.acs.org/doi/10.1021/acsmaterialslett.2c00114.
3. ↑ Segura, A.; Artús, L.; Cuscó, R.; Taniguchi, T.; Cassabois, G.; Gil, B. (6 February 2018). "Natural optical anisotropy of h-BN: Highest giant birefringence in a bulk crystal through the mid-infrared to ultraviolet range". Physical Review Materials 2 (2). doi:10.1103/PhysRevMaterials.2.024001. Bibcode: 2018PhRvM...2b4001S.
4. ↑ Cradwick, Peter D.; de Endredy, Andrew S. (1975). "Crystal structure of aluminium iodate nitrate hexahydrate" (in en). Journal of the Chemical Society, Dalton Transactions (19): 1926–1929. doi:10.1039/dt9750001926. ISSN 0300-9246. http://xlink.rsc.org/?DOI=dt9750001926.
5. ↑ Kalinin, V.R.; Ilyukhin, V.V.; Belov, N.V. (1978). "Crystal structure of acid mixed potassium iodate-nitrate KIO3xKNO3x2HIO3" (in Russian). Doklady Akademii Nauk SSSR 239 (6). https://inis.iaea.org/search/search.aspx?orig_q=RN:10454338.
6. ↑ Wu, Chao; Jiang, Xingxing; Wang, Zujian; Lin, Lin; Lin, Zheshuai; Huang, Zhipeng; Long, Xifa; Humphrey, Mark G. et al. (2021-02-15). "Giant Optical Anisotropy in the UV-Transparent 2D Nonlinear Optical Material Sc(IO 3 ) 2 (NO 3 )" (in en). Angewandte Chemie International Edition 60 (7): 3464–3468. doi:10.1002/anie.202012456. ISSN 1433-7851. PMID 33146456. Bibcode: 2021ACIE...60.3464W. https://onlinelibrary.wiley.com/doi/10.1002/anie.202012456.
7. ↑ 7.0 7.1 Huang, Yu; Jiang, Ting-kun; Yang, Bing-Ping; Hu, Chun-Li; Fang, Zhi; Mao, Jiang-Gao (2022-02-14). "Two Indium Iodate–Nitrates with Large Birefringence Induced by Hybrid Anionic Functional Groups and Their Favorable Arrangements" (in en). Inorganic Chemistry 61 (8): 3374–3378. doi:10.1021/acs.inorgchem.2c00079. ISSN 0020-1669. PMID 35156368. https://pubs.acs.org/doi/10.1021/acs.inorgchem.2c00079.
8. ↑ Mao, Fei-Fei; Hu, Chun-Li; Li, Bing-Xuan; Mao, Jiang-Gao (2017-11-20). "Acentric La 3 (IO 3 ) 8 (OH) and La(IO 3 ) 2 (NO 3 ): Partial Substitution of Iodate Anions in La(IO 3 ) 3 by Hydroxide or Nitrate Anion" (in en). Inorganic Chemistry 56 (22): 14357–14365. doi:10.1021/acs.inorgchem.7b02508. ISSN 0020-1669. PMID 29120615. https://pubs.acs.org/doi/10.1021/acs.inorgchem.7b02508.
9. ↑ Ma, Nan; Huang, Yu; Hu, Chun-Li; Zhang, Ming-Zhi; Li, Bing-Xuan; Mao, Jiang-Gao (2023-09-07). "Ce(IO 3 ) 3 F and Ce(IO 3 ) 2 (NO 3 ): Two Mixed-Anion Cerium Iodates with Good Nonlinear Optical and Birefringent Properties" (in en). Inorganic Chemistry 62 (37): 15329–15333. doi:10.1021/acs.inorgchem.3c02651. ISSN 0020-1669. PMID 37677152. https://pubs.acs.org/doi/10.1021/acs.inorgchem.3c02651.
10. ↑ 10.0 10.1 Wang, Yaxing; Duan, Tao; Weng, Zhehui; Ling, Jie; Yin, Xuemiao; Chen, Lanhua; Sheng, Daopeng; Diwu, Juan et al. (2017-11-06). "Mild Periodic Acid Flux and Hydrothermal Methods for the Synthesis of Crystalline f-Element-Bearing Iodate Compounds" (in en). Inorganic Chemistry 56 (21): 13041–13050. doi:10.1021/acs.inorgchem.7b01855. ISSN 0020-1669. PMID 28991439. https://pubs.acs.org/doi/10.1021/acs.inorgchem.7b01855.

Template:Iodates

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Salts and covalent derivatives of the nitrate ion

HNO3 |  |  |  | He

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LiNO3 | Be(NO3)2 | B(NO3)−4 | C  | NO−3,
NH4NO3 | O  | FNO3 | Ne
NaNO3 | Mg(NO3)2 | Al(NO3)3 | Si  | P  | S  | ClONO2 | Ar
KNO3 | Ca(NO3)2 | Sc(NO3)3 | Ti(NO3)4 | VO(NO3)3 | Cr(NO3)3 | Mn(NO3)2 | Fe(NO3)3,
Fe(NO3)2 | Co(NO3)2,
Co(NO3)3 | Ni(NO3)2 | Cu(NO3)2 | Zn(NO3)2 | Ga(NO3)3 | Ge  | As  | Se  | Br  | Kr
RbNO3 | Sr(NO3)2 | Y(NO3)3 | Zr(NO3)4 | Nb  | Mo  | Tc  | Ru  | Rh  | Pd(NO3)2 | AgNO3 | Cd(NO3)2 | In  | Sn  | Sb(NO3)3 | Te  | I  | Xe(NO3)2
CsNO3 | Ba(NO3)2 |  | Hf  | Ta  | W  | Re  | Os  | Ir  | Pt  | Au  | Hg2(NO3)2,
Hg(NO3)2 | Tl(NO3)3,
TlNO3 | Pb(NO3)2 | Bi(NO3)3
BiO(NO3) | Po  | At  | Rn
FrNO3 | Ra(NO3)2 |  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
La(NO3)3 | Ce(NO3)3,
Ce(NO3)4 | Pr  | Nd(NO3)3 | Pm  | Sm  | Eu(NO3)3 | Gd(NO3)3 | Tb(NO3)3 | Dy  | Ho  | Er  | Tm  | Yb  | Lu
Ac(NO3)3 | Th(NO3)4 | Pa  | UO2(NO3)2 | Np  | Pu  | Am  | Cm  | Bk  | Cf  | Es  | Fm  | Md  | No  | Lr

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