Terbium(III) nitrate

Terbium(III) nitrate is an inorganic chemical compound, a salt of terbium and nitric acid, with the formula Tb(NO3)3. The hexahydrate crystallizes as triclinic colorless crystals with the formula [Tb(NO3)3(H2O)4]·2H2O.[1] It can be used to synthesize materials with green emission.[2]

Terbium(III) nitrate

Hydrate form of terbium nitrate (left) and luminescence under 254 nm UV light (right)
Names
Other names
Terbium nitrate
Identifiers
3D model (JSmol)
ECHA InfoCard 100.030.113
UNII
  • InChI=1S/3NO3.Tb/c3*2-1(3)4;/q3*-1;+3
    Key: YJVUGDIORBKPLC-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Tb+3]
Properties
Tb(NO3)3
Molar mass 344.946
Appearance Colorless crystals (hexahydrate)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Preparation

Terbium(III) nitrate can be prepared by dissolving terbium(III,IV) oxide in a mixture of aqueous HNO3 and H2O2 solution.[3]

Terbium(III) nitrate can be obtained by reacting terbium(III) oxide with nitric acid and crystallizing then drying the crystals with 45~55% sulfuric acid to obtain the hexahydrate.[4]

Properties

It reacts with NH4HCO3 to produce Tb2(CO3)3 along with its basic carbonate.[5] It forms Tb(NO3)2−5 in CH3CN with excess nitrate anions.[6]

References
  1. Moret, Emmanuel; Bünzli, Jean-Claude G.; Schenk, Kurt J. (1990). "Structural and luminescence study of europium and terbium nitrate hexahydrates". Inorganica Chimica Acta. 178 (1): 83–88. doi:10.1016/S0020-1693(00)88138-4. ISSN 0020-1693.
  2. Xia, Tifeng; Song, Tao; Zhang, Gege; Cui, Yuanjing; Yang, Yu; Wang, Zhiyu; Qian, Guodong (2016). "A Terbium Metal-Organic Framework for Highly Selective and Sensitive Luminescence Sensing of Hg2+Ions in Aqueous Solution". Chemistry - A European Journal. 22 (51): 18429–18434. doi:10.1002/chem.201603531. ISSN 0947-6539. PMID 27747951.
  3. Hou, Zhiyao; Wang, Lili; Lian, Hongzhou; Chai, Ruitao; Zhang, Cuimiao; Cheng, Ziyong; Lin, Jun (2009). "Preparation and luminescence properties of Ce3+ and/or Tb3+ doped LaPO4 nanofibers and microbelts by electrospinning". Journal of Solid State Chemistry. 182 (4): 698–708. Bibcode:2009JSSCh.182..698H. doi:10.1016/j.jssc.2008.12.021. ISSN 0022-4596.
  4. 高胜利, 刘翊纶, 杨祖培. 稀土硝酸盐的制法、性质及结构 Archived 2019-07-08 at the Wayback Machine. 稀土, 1990 (4): 23-28.
  5. Foger, K.; Hoang, M.; Turney, T. W. (1992). "Formation and thermal decomposition of rare-earth carbonates". Journal of Materials Science. 27 (1): 77–82. Bibcode:1992JMatS..27...77F. doi:10.1007/BF02403646. ISSN 0022-2461. S2CID 189835444.
  6. Bünzli, Jean-Claude G.; Vuckovic, Milan M. (1983). "Spectroscopic properties of anhydrous and aqueous solutions of terbium perchlorate and nitrate: Coordination numbers of the Tb(III) ion". Inorganica Chimica Acta. 73: 53–61. doi:10.1016/S0020-1693(00)90826-0. ISSN 0020-1693.
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