Chemistry:Titanium(IV) nitrate

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Titanium(IV) nitrate
File:Ti(NO3)4.tif
Names
Other names
titanium tetranitrate, tetranitratotitanium
Identifiers
3D model (JSmol)
ChemSpider
Properties
Ti(NO3)4
Molar mass 295.8866 g/mol
Appearance white volatile solid
Density 2.192[3]
Melting point 58[4] °C (136 °F; 331 K)
Boiling point decompose
Reacts[5]
Structure[6]
monoclinic
P21/C
a = 7.80, b = 13.57, c = 10.34 Å
α = 90°, β = 125·0°, γ = 90°
896.52 Å3
4
8
flattened tetrahedral
Related compounds
Related compounds
hafnium nitrate, zirconium nitrate, titanium phosphate, titanium perchlorate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Titanium nitrate is the inorganic compound with formula Ti(NO3)4. It is a colorless, diamagnetic solid that sublimes readily. It is an unusual example of a volatile binary transition metal nitrate. Ill defined species called titanium nitrate are produced upon dissolution of titanium or its oxides in nitric acid.

Preparation

Similarly to its original method,[7][8] Ti(NO3)4 is prepared by the nitration of titanium tetrachloride using dinitrogen pentoxide[9] or chlorine nitrate:[10]

TiCl4 + 4 N2O5 → Ti(NO3)4 + 4 ClNO2

Hydrated titanium nitrate, the nitrate salt of the aquo complex [Ti(H2O)6]3+, is produced upon dissolution of titanium compounds in nitric acid.[11]

Structure

The complex has D2d symmetry, with four bidentate nitrate ligands. The N-O distances are 1·29 Å and 1·185 Å (noncoordinated).[6]

Physical properties

In the infrared spectrum, it absorbs strongly at 1635 cm−1, assigned to a N-O vibrational mode.[12]

It is soluble in nonpolar solvents silicon tetrachloride and carbon tetrachloride.[13][8]

Reactions

Titanium nitrate is hygroscopic, converting to ill-defined hydrates.[14] The anhydrous material is highly reactive, even toward hydrocarbons.[14] Titanium nitrate also reacts with n-dodecane,[15] p-dichlorobenzene, anisole, biphenyl,[15][16]

It decomposes thermally to titanium dioxide.[17]

References

  1. Garner, C. D.; Wallwork, S. C. (1966). "The crystal structures of anhydrous nitrates and their complexes. Part III. Titanium(IV) nitrate". J. Chem. Soc. A: 1496–1500. doi:10.1039/J19660001496. 
  2. "ICSD 26639 : ICSD Structure : N4 O12 Ti". Cambridge Crystallographic Data Centre. https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=1602029&DatabaseToSearch=Published. 
  3. "Titanium(iv) nitrate (Ti(NO3)4)". http://openmopac.net/PM7_accuracy/data_solids/Titanium_iv__nitrate__Ti_NO3_4__Jmol.html. Retrieved 27 September 2014. 
  4. Chemistry of the Elements (Second Edition). N. N. Greenwood and A. Earnshaw. P966. 21.3.4 Compounds with oxoanions
  5. Nathaniel Howell Furman; R. J. Mundy; G. H. Morrison (1955) (in English). The Distribution of Uranyl Nitrate from Aqueous Solutions to Diethyl Ether. the University of Michigan: U.S. Atomic Energy Commission. Technical Information Service. p. 51. 
  6. 6.0 6.1 Garner, C. David; Ian H. Hillier; Martyn F. Guest (1975). "Ab initio self-consistent field molecular-orbital calculation of the ground state of tetranitratotitanium(IV); comments on the reactivity of anhydrous metal nitrates". Journal of the Chemical Society, Dalton Transactions (19): 1934. doi:10.1039/DT9750001934. ISSN 0300-9246. 
  7. Reihlen, Hans; Andreas Hake (1927). "Über die Konstitution des N2O4 und N2O3 und die Additionsverbindungen von Nitro- und Nitrosokörpern an Zinn- und Titantetrachlorid" (in de). Justus Liebig's Annalen der Chemie 452 (1): 47–67. doi:10.1002/jlac.19274520104. ISSN 0075-4617. 
  8. 8.0 8.1 Schmeisser, Martin (1955). "Die Chemie der anorganischen Acylnitrate (ein Problem des Nitrylchlorids) und Acylperchlorate (ein Problem des Dichlorhexoxyds)" (in de). Angewandte Chemie 67 (17–18): 493–501. doi:10.1002/ange.19550671708. ISSN 0044-8249. Bibcode1955AngCh..67..493S. 
  9. P. Ehrlich "Titanium Tetranitrate" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1237.
  10. Schmeisser, M.; Brandle, K. Acyl nitrates and perchlorates. IV. ClNO3 as starting material for acyl nitrates. Angewandte Chemie, 1957. 69: 781. ISSN: 0044-8249.
  11. Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 1331. ISBN 9780123526519. https://books.google.com/books?id=Mtth5g59dEIC&pg=PA1331. Retrieved 28 September 2014. 
  12. Addison, C. C.; Logan, N.; Wallwork, S. C.; Garner, C. D. (1971). "Structural Aspects of Co-ordinated Nitrate Groups". Quarterly Reviews, Chemical Society 25 (2): 289. doi:10.1039/qr9712500289. 
  13. Amos, D.W.; G.W. Flewett (1974). "Raman spectra of titanium (IV) and tin (IV) nitrates". Spectrochimica Acta Part A: Molecular Spectroscopy 30 (2): 453–461. doi:10.1016/0584-8539(74)80085-1. ISSN 0584-8539. Bibcode1974AcSpA..30..453A. 
  14. 14.0 14.1 Amos, D.W.; D.A. Baines, G.W. Flewett (1973). "Nitration by titanium (IV) nitrate". Tetrahedron Letters 14 (34): 3191–3194. doi:10.1016/S0040-4039(00)79808-X. ISSN 0040-4039. 
  15. 15.0 15.1 Coombes, Robert G.; Leslie W. Russell (1974). "Nitration of aromatic compounds by tetranitratotitanium(IV) in carbon tetrachloride solution". Journal of the Chemical Society, Perkin Transactions 2 (7): 830. doi:10.1039/P29740000830. ISSN 0300-9580. 
  16. Schofield, Kenneth (1980). Aromatic Nitration. CUP Archive. pp. 97–98. ISBN 9780521233620. https://books.google.com/books?id=N-08AAAAIAAJ&pg=PA97. Retrieved 27 September 2014. 
  17. Allendorf, Mark Donald (1999-01-01). "Titanium Oxide CVD from Titanium (IV) Nitrate ...". Proceedings of the Symposium on Fundamental Gas-Phase and Surface Chemistry of Vapor-Phase Materials Synthesis. The Electrochemical Society. pp. 395–397. ISBN 9781566772174. https://books.google.com/books?id=TsTsmI1K40YC&pg=PA395. Retrieved 27 September 2014. 

Other reading

  • Partington, J. R.; A. L. Whynes (1949). "660. Reactions of nitrosyl chloride. Part II". Journal of the Chemical Society (Resumed): 3135. doi:10.1039/JR9490003135. ISSN 0368-1769. 
  • Dauerman, L.; G.E. Salser (1973). "Mass spectra of covalent inorganic nitrates: copper(II) nitrate and titanium(IV) nitrate". Journal of Inorganic and Nuclear Chemistry 35 (1): 304–306. doi:10.1016/0022-1902(73)80643-8. ISSN 0022-1902. 
Salts and covalent derivatives of the nitrate ion