| Home > Publications database > Synthesis and Characterization of Ti $^{4+}$ Containing Carbonates Ti[CO$_4$] and Ti$_2$ O$_3$ [CO $_3$] > print |
| 001 | 643487 | ||
| 005 | 20260116212310.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.inorgchem.5c03033 |2 doi |
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| 100 | 1 | _ | |a Bayarjargal, Lkhamsuren |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Synthesis and Characterization of Ti $^{4+}$ Containing Carbonates Ti[CO$_4$] and Ti$_2$ O$_3$ [CO $_3$] |
| 260 | _ | _ | |a Washington, DC |c 2025 |b American Chemical Society |
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| 520 | _ | _ | |a Two titanium carbonates, Ti[CO$_4$] and Ti$_2$O$_3$[CO$_3$], were synthesized by the reaction of TiO$_2$ with CO$_2$ at high pressures and temperatures in a laser heated diamond anvil cell. Their structures were solved by in situ single crystal X-ray diffraction at high pressures. At pressures above ≈33 GPa, Ti[CO$_4$]-I4̅2d is stable. It transforms to Ti[CO$_4$]-I4$_1$/amd on pressure release. The distinguishing feature of the Ti[CO$_4$]-structures is the presence of isolated [CO$_4$]$^{4-}$-groups, while Ti$_2$O$_3$[CO$_3$] has isolated [CO$_3$]$_2$–-groups. Both structures contain 8-fold coordinated tetravalent Ti$^{4+}$-cations. Full geometry optimizations based on DFT calculations reproduced the crystal structures. The DFT models were used to complement the experimental compression data and for the assignment of Raman modes. While carbonates are typically compressible compounds, Ti[CO$_4$] is rather incompressible with a bulk modulus of K0 ≈ 200 GPa. As we observed the pressure-induced transformation of TiO$_2$, we provide the Raman spectra of TiO$_2$–OI, and TiO$_2$–OII. |
| 536 | _ | _ | |a 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) |0 G:(DE-HGF)POF4-631 |c POF4-631 |f POF IV |x 0 |
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| 536 | _ | _ | |a DFG project G:(GEPRIS)264049573 - Carbonate und Schock-Kompression: Stabilität, Phasentransformation und chemische Reaktionen mit Silikaten (264049573) |0 G:(GEPRIS)264049573 |c 264049573 |x 2 |
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| 700 | 1 | _ | |a Spahr, Dominik |0 P:(DE-H253)PIP1032506 |b 1 |
| 700 | 1 | _ | |a Milman, Victor |0 0000-0003-2258-1347 |b 2 |
| 700 | 1 | _ | |a Giordano, Nico |0 P:(DE-H253)PIP1091076 |b 3 |
| 700 | 1 | _ | |a Glazyrin, Konstantin |0 P:(DE-H253)PIP1019654 |b 4 |
| 700 | 1 | _ | |a Winkler, Bjoern |0 P:(DE-H253)PIP1011391 |b 5 |
| 773 | _ | _ | |a 10.1021/acs.inorgchem.5c03033 |g Vol. 64, no. 44, p. 21893 - 21902 |0 PERI:(DE-600)1484438-2 |n 44 |p 21893 - 21902 |t Inorganic chemistry |v 64 |y 2025 |x 0020-1669 |
| 856 | 4 | _ | |y OpenAccess |u https://bib-pubdb1.desy.de/record/643487/files/synthesis-and-characterization-of-ti4-containing-carbonates-ti-co4-and-ti2o3-co3.pdf |
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