Hydration enthalpy of cations

Can someone provide reliable data on the solvation / hydration enthalpies of $\ce{Ti^{4+}}$ and $\ce{Cr^{3+}}$ ions, or explain which is more stable qualitatively? According to this article1


CFSE in $\ce{Cr^{3+}}$ is around 59.7 kcal = 249.7848 kJ 


and according to the abstract of an article by Uudsemaa and Tamm,2 the estimated hydration energy of $\ce{Ti^{4+}}$ is around 7800 kJ/mol


Is this data correct? can someone explain qualitatively as well?


References
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(1) <http://hydration%20energy%20of%20Cr3+%20value>


(2) Uudsema, M.; Tamm, T. Calculations of hydrated titanium ion complexes: structure and influence of the first two coordination spheres. *Chem. Phys. Lett.* **2001,** *342* (5–6), 667–672. [DOI: 10.1016/S0009-2614(01)00617-0](http://doi.org/10.1016/S0009-2614(01)00617-0).


