D. R. Peacor, P. J. Dunn, and W. B. Simmons, Eggletonite, the Na analogue of ganophyllite, Mineralogical Magazine, vol.48, issue.346, pp.93-96, 1984.

R. C. Rouse, D. R. Peacor, and R. L. Freed, Am. Mineral, vol.73, pp.168-171, 1988.

K. P. Pritzker, Calcium Pyrophosphate Crystal Formation and Dissolution, Calcium Phosphates in Biological and Industrial Systems, pp.277-301, 1998.

N. Khon, R. E. Hughes, D. J. Mccarty, and J. S. Faires, Ann Intern Med, vol.56, pp.738-783, 1962.

P. Richette, T. Bardin, and M. Doherty, An update on the epidemiology of calcium pyrophosphate dihydrate crystal deposition disease, Rheumatology, vol.48, issue.7, pp.711-715, 2009.

K. P. Pritzker, P. T. Cheng, S. A. Omar, and S. C. Nyburg, J Rheumatol, vol.8, pp.451-455, 1981.

N. S. Mandel, G. S. Mandel, D. J. Carroll, and P. B. Halverson, Calcium pyrophosphate crystal deposition, Arthritis & Rheumatism, vol.27, issue.7, pp.789-796, 1984.

P. T. Cheng, K. P. Pritzker, and . Nyburg.-s.-c., ?-Calcium disodium pyrophosphate tetrahydrate, Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, vol.36, issue.4, pp.921-924, 1980.

P. T. Cheng, K. P. Pritzker, and . Nyburg.-s.-c., ?-Calcium disodium pyrophosphate tetrahydrate, Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, vol.36, issue.4, pp.921-924, 1980.

M. R. Cave, Investigation of layered calcium phosphates and related materials for biomaterial applications, 2010.

T. V. Safronova, V. I. Putljaev, P. A. Sechejko, and J. D. Tret'jakov, , 2012.

I. H. Joe, G. Aruldhas, and G. Keresztury, Vibrational spectra of ?-CaNa2P2O7 · 4H2O, CaNH4NaP2O7 · 3H2O and CdNH4NaP2O7 · 3H2O, Journal of Raman Spectroscopy, vol.22, issue.9, pp.537-539, 1991.

P. Gras, A. Baker, C. Combes, C. Rey, S. Sarda et al., From crystalline to amorphous calcium pyrophosphates: A solid state Nuclear Magnetic Resonance perspective, Acta Biomaterialia, vol.31, pp.348-357, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01221038

C. Slater, D. Laurencin, V. Burnell, M. E. Smith, L. M. Grover et al., Enhanced stability and local structure in biologically relevant amorphous materials containing pyrophosphate, Journal of Materials Chemistry, vol.21, issue.46, p.18783, 2011.
URL : https://hal.archives-ouvertes.fr/hal-00641479

A. P. Legrand, H. Sfihi, N. Lequeux, and J. Lemaître, 31P Solid-State NMR study of the chemical setting process of a dual-paste injectable brushite cements, Journal of Biomedical Materials Research Part B: Applied Biomaterials, vol.91B, issue.1, pp.46-54, 2009.

Y. Yu, H. Guo, M. Pujari-palmer, B. Stevensson, J. Grins et al., Advanced solid-state 1H/31P NMR characterization of pyrophosphate-doped calcium phosphate cements for biomedical applications: The structural role of pyrophosphate, Ceramics International, vol.45, issue.16, pp.20642-20655, 2019.

L. Mayen, N. D. Jensen, D. Laurencin, O. Marsan, C. Bonhomme et al., A soft-chemistry approach to the synthesis of amorphous calcium ortho/pyrophosphate biomaterials of tunable composition, Acta Biomaterialia, vol.103, pp.333-345, 2020.
URL : https://hal.archives-ouvertes.fr/hal-02447805

K. Momma and F. J. Izumi, VESTA 3for three-dimensional visualization of crystal, volumetric and morphology data, Journal of Applied Crystallography, vol.44, issue.6, pp.1272-1276, 2011.

G. Kresse and J. Hafner, Ab initiomolecular-dynamics simulation of the liquid-metal?amorphous-semiconductor transition in germanium, Physical Review B, vol.49, issue.20, pp.14251-14269, 1994.

P. Giannozzi, S. Baroni, N. Bonini, M. Calandra, R. Car et al., QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials, Journal of Physics: Condensed Matter, vol.21, issue.39, p.395502, 2009.
URL : https://hal.archives-ouvertes.fr/hal-00717147

S. Baroni, S. De-gironcoli, A. Dal-corso, and P. Giannozzi, Phonons and related crystal properties from density-functional perturbation theory, Reviews of Modern Physics, vol.73, issue.2, pp.515-562, 2001.

J. P. Perdew, K. Burke, and M. Ernzerhof, Generalized Gradient Approximation Made Simple, Physical Review Letters, vol.77, issue.18, pp.3865-3868, 1996.

N. Troullier and J. L. Martins, Efficient pseudopotentials for plane-wave calculations, Physical Review B, vol.43, issue.3, pp.1993-2006, 1991.

L. Kleinman and D. M. Bylander, Efficacious Form for Model Pseudopotentials, Physical Review Letters, vol.48, issue.20, pp.1425-1428, 1982.

C. J. Pickard and F. Mauri, All-electron magnetic response with pseudopotentials: NMR chemical shifts, Physical Review B, vol.63, issue.24, p.245101, 2001.

K. Lejaeghere, G. Bihlmayer, T. Bjorkman, P. Blaha, S. Blugel et al., Reproducibility in density functional theory calculations of solids, Science, vol.351, issue.6280, pp.aad3000-aad3000, 2016.
URL : https://hal.archives-ouvertes.fr/cea-01849842

C. Gervais, D. Laurencin, A. Wong, F. Pourpoint, J. Labram et al., New perspectives on calcium environments in inorganic materials containing calcium?oxygen bonds: A combined computational?experimental 43Ca NMR approach, Chemical Physics Letters, vol.464, issue.1-3, pp.42-48, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00358177

P. Pyykkö, Year-2008 nuclear quadrupole moments, Molecular Physics, vol.106, issue.16-18, pp.1965-1974, 2008.

K. M. Burgess, Y. Xu, M. C. Leclerc, and D. L. Bryce, Alkaline-Earth Metal Carboxylates Characterized by 43Ca and 87Sr Solid-State NMR: Impact of Metal-Amine Bonding, Inorganic Chemistry, vol.53, issue.1, pp.552-561, 2013.

J. Bennazha, A. Boukhari, and E. M. Holt, Synthesis and crystal structure of Na2CaP2O7, Solid State Sciences, vol.1, issue.6, pp.373-380, 1999.

L. Granasy, T. Pusztai, G. Tegze, J. Warren, and J. Douglas, Phys Rev, p.11605, 2005.

P. Gras, Etude physico-chimique et structurale de pyrophosphates de calcium hydratés: application aux micro-calcifications associées à l'arthrose, 2014.

A. Rulmont, R. Cahay, M. Liegeois-duyckaerts, and P. Tarte, Eur J Solid State Inorg Chem, vol.28, pp.207-219

P. Gras, C. Rey, O. Marsan, S. Sarda, and C. Combes, Synthesis and Characterisation of Hydrated Calcium Pyrophosphate Phases of Biological Interest, European Journal of Inorganic Chemistry, vol.2013, issue.34, pp.5886-5895, 2013.

T. Bali?-?uni?, M. R. Christoffersen, and J. R. Christoffersen, Structure of the ? form of calcium pyrophosphate tetrahydrate, Acta Crystallographica Section B Structural Science, vol.56, issue.6, pp.953-958, 2000.

N. L. Davis, G. S. Mandel, N. S. Mandel, and R. E. Dickerson, Structure of monoclinic dicalcium pyrophosphate tetrahydrate, Journal of Crystallographic and Spectroscopic Research, vol.15, issue.5, pp.513-521, 1985.

M. Harcharras, A. Ennaciri, A. Rulmont, and B. Gilbert, Vibrational spectra and structures of double diphosphates M2CdP2O7 (M = Li, Na, K, Rb, Cs), Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol.53, issue.3, pp.345-352, 1997.

F. W. Poulsen and J. R. Spect, Raman spectrum of the solid electrolytes LiI · H2O and LiI · D2O, Journal of Raman Spectroscopy, vol.17, issue.2, pp.189-191, 1986.