K. S. Kumar and M. Ruben, Emerging trends in spin crossover (SCO) based functional materials and devices, Coord. Chem. Rev, vol.346, pp.176-205, 2017.

M. Matsuda, H. Isozaki, and H. Tajima, Reproducible on-off switching of the light emission from the electroluminescent device containing a spin crossover complex, Thin Solid Films, vol.517, pp.1465-1467, 2008.

B. Benaicha, K. Van-do, A. Yangui, N. Pittala, A. Lusson et al., Interplay between Spin-Crossover and Luminescence in a Multifunctional Single Crystal Iron (II) complex: Towards a New Generation of Molecular Sensors, Chem. Sci, vol.10, pp.6791-6798, 2019.
URL : https://hal.archives-ouvertes.fr/hal-02163112

T. K. Paraïso, M. Wouters, Y. Léger, F. Morier-genoud, and B. Deveaud-plédran, Multistability of a coherent spin ensemble in a semiconductor microcavity, Nat. Mater, vol.9, pp.655-660, 2010.

E. Coronado, J. R. Galán-mascarós, M. Monrabal-capilla, J. García-martínez, and P. Pardo-ibáñez, Bistable Spin-Crossover Nanoparticles Showing Magnetic Thermal Hysteresis near Room Temperature, Adv. Mater, vol.19, pp.1359-1361, 2007.

O. Sato, Dynamic molecular crystals with switchable physical properties, Nat. Chem, vol.8, pp.644-656, 2016.

V. Shalabaeva, K. Ridier, S. Rat, M. D. Manrique-juarez, L. Salmon et al., Room temperature current modulation in large area electronic junctions of spin crossover thin films, Appl. Phys. Lett, vol.112, p.13301, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01961778

J. Dugay, M. Giménez-marqués, T. Kozlova, H. W. Zandbergen, E. Coronado et al., Spin Switching in Electronic Devices Based on 2D Assemblies of Spin-Crossover Nanoparticles, Adv. Mater, vol.27, pp.1288-1293, 2015.

F. Prins, M. Monrabal-capilla, E. A. Osorio, E. Coronado, and H. S. Van-der-zant, Room-Temperature Electrical Addressing of a Bistable Spin-Crossover Molecular System, Adv. Mater, vol.23, pp.1545-1549, 2011.

T. Rueckes, K. Kim, E. Joselevich, G. Y. Tseng, C. Cheung et al., Carbon Nanotube-Based Nonvolatile Random Access Memory for Molecular Computing, Science, vol.289, pp.94-97, 2000.

M. A. Halcrow, Spin-Crossover Materials, Properties and Applications

N. Pittala, F. Thétiot, S. Triki, K. Boukheddaden, G. Chastanet et al., Cooperative 1D Triazole-Based Spin Crossover Fe II Material with Exceptional Mechanical Resilience, Chem. Mater, vol.29, pp.490-494, 2017.

H. Phan, J. J. Hrudka, D. Igimbayeva, L. M. Lawson-daku, and M. Shatruk, A Simple Approach for Predicting the Spin State of Homoleptic Fe(II) Tris-diimine Complexes, J. Am. Chem. Soc, vol.139, pp.6437-6447, 2017.

N. Pittala, F. Thétiot, C. Charles, S. Triki, K. Boukheddaden et al., An unprecedented trinuclear Fe II triazole-based complex exhibiting a concerted and complete sharp spin transition above room temperature, Chem. Commun, vol.53, pp.8356-8359, 2017.

E. Milin, V. Patinec, S. Triki, E. Bendeif, S. Pillet et al., Elastic Frustration Triggering Photoinduced Hidden Hysteresis and Multistability in a Two-Dimensional Photoswitchable Hofmann-Like Spin-Crossover Metal-Organic Framework, Inorg. Chem, vol.55, pp.11652-11661, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01407977

M. Shatruk, H. Phan, B. A. Chrisostomo, and A. Suleimenova, Symmetry-breaking structural phase transitions in spin crossover complexes, Coord. Chem. Rev, pp.62-73, 2015.

A. Atmani, F. El-hajj, S. Benmansour, M. Marchivie, S. Triki et al., Guidelines to design new spin crossover materials, Coord. Chem. Rev, vol.254, pp.1559-1569, 2010.
URL : https://hal.archives-ouvertes.fr/hal-01577333

W. Phonsri, D. S. Macedo, B. A. Lewis, D. F. Wain, and K. S. Murray, Iron(III) Azadiphenolate Compounds in a New Family of Spin Crossover Iron(II)-Iron(III) Mixed-Valent Complexes, Magnetochemistry, vol.5, 2019.

S. Floquet, M. Boillot, E. Rivière, F. Varret, K. Boukheddaden et al., Spin transition with a large thermal hysteresis near room temperature in a water solvate of an iron(III) thiosemicarbazone complex, New J. Chem, vol.27, pp.341-348, 2003.
URL : https://hal.archives-ouvertes.fr/hal-01550926

S. Floquet, N. Guillou, P. Négrier, E. Rivière, and M. Boillot, The crystallographic phase transition for a ferric thiosemicarbazone spin crossover complex studied by X-ray powder diffraction, New J. Chem, vol.30, pp.1621-1627, 2006.
URL : https://hal.archives-ouvertes.fr/hal-01552915

C. Cook, F. Habib, T. Aharen, R. Clérac, A. Hu et al., High-Temperature Spin Crossover Behavior in a Nitrogen-Rich Fe III Based System, Inorg. Chem, vol.52, pp.1825-1831, 2013.

K. Takahashi, K. Kawamukai, M. Okai, T. Mochida, T. Sakurai et al., A New Family of Anionic Fe III Spin Crossover Complexes Featuring a Weak-Field N 2 O 4 Coordination Octahedron, Chem. Eur. J, vol.22, pp.1253-1257, 2016.

W. Phonsri, B. A. Lewis, G. N. Jameson, and K. S. Murray, Double spin crossovers: A new double salt strategy to improve magnetic and memory properties, Chem. Commun, vol.55, pp.14031-14034, 2019.

M. Yamada, M. Ooidemizu, Y. Ikuta, S. Osa, N. Matsumoto et al., Interlayer Interaction of Two-Dimensional Layered Spin Crossover Complexes

=. H-3-l-me and . Tris, -methylimidazol-4-yl)methylidene)amino)ethyl]amine), Inorg. Chem, vol.42, issue.2, pp.8406-8416, 2003.

V. Gómez, C. Sáenz-de-pipaón, P. Maldonado-illescas, J. C. Waerenborgh, E. Martin et al., Easy Excited-State Trapping and Record High T TIESST in a Spin-Crossover Polyanionic Fe(II) Trimer, J. Am. Chem. Soc, vol.137, pp.11924-11927, 2015.

N. Hirosawa, Y. Oso, and T. Ishida, Spin crossover and light-induced excited spin-state trapping observed for an iron (II) complex chelated with tripodal tetrakis (2-pyridyl) methane, Chem. Lett, vol.41, pp.716-718, 2012.

M. Yamasaki and T. Ishida, Spin-crossover thermal hysteresis and light-induced effect on iron (II) complexes with tripodal tris (2-pyridyl) methanol, Polyhedron, vol.85, pp.795-799, 2015.

M. Yamasaki and T. Ishida, Heating-rate dependence of spin-crossover hysteresis observed in an iron (II) complex having tris (2-pyridyl) methanol, J. Mater. Chem. C, vol.3, pp.7784-7787, 2015.

T. Ishida, T. Kaneto, and M. Yamasaki, An iron(II) complex tripodally chelated with 1,1,1-tris(pyridine-2-yl)ethane showing room-temperature spin-crosssover behaviour, Acta Cryst, vol.72, pp.797-801, 2016.

A. Kashiro, K. Some, Y. Kobayashi, and T. Ishida, Iron(II) and 1,1,1-Tris(2-pyridyl)nonadecane Complex Showing an Order-Disorder-Type Structural Transition and Spin-Crossover Synchronized over Both Conformers, Inorg. Chem, vol.58, pp.7672-7676, 2019.

M. Yamasaki and T. Ishida, First Iron(II) Spin-crossover Complex with an N 5 S Coordination Sphere, Chem. Lett, vol.44, pp.920-921, 2015.

C. D. Mekuimemba, F. Conan, A. J. Mota, M. A. Palacios, E. Colacio et al., On the Magnetic Coupling and Spin Crossover Behavior in Complexes Containing the Head-to-Tail [Fe II 2 (µ-SCN) 2 ] Bridging Unit: A Magnetostructural Experimental and Theoretical Study, Inorg. Chem, vol.57, pp.2184-2192, 2018.

K. Nebbali, C. D. Mekuimemba, C. Charles, S. Yefsah, G. Chastanet et al., One-Dimensional Thiocyanato-Bridged Fe(II) Spin Crossover Cooperative Polymer With Unusual FeN 5 S Coordination Sphere, Inorg. Chem, vol.57, pp.12338-12346, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01872926

D. L. White and J. W. Faller, Preparation and Reactions of the C 3v Ligand Tris(2-pyridyl)methane and Its Derivatives, Inorg. Chem, vol.21, pp.3119-3122, 1982.

R. T. Jonas and T. D. Stack, Synthesis and Characterization of a Family of Systematically Varied Tris(2-pyridyl)methoxymethane Ligands: Copper(I) and Copper(II) Complexes, Inorg. Chem, vol.37, pp.6615-6629, 1998.

P. Guionneau, M. Marchivie, G. Bravic, J. Létard, and D. Chasseau, Structural Aspects of Spin Crossover. Example of the, Complexes. Top. Curr. Chem, vol.234, pp.97-128, 2004.

M. Sorai and S. Seki, Phonon coupled cooperative low-spin 1 A 1 ? high-spin 5 T 2 transition in [Fe(phen) 2 (NCS) 2 ] and [Fe(phen) 2 (NCSe) 2 ] crystals, J. Pbys. Chm. Solids, vol.35, pp.555-570, 1974.

G. Brehm, M. Reiher, B. Le-guennic, M. Leibold, S. Schindler et al., Investigation of the low-spin to high-spin transition in a novel [Fe(pmea)(NCS) 2 ] complex by IR and Raman spectroscopy and DFT calculations, J. Raman Spectrosc, vol.37, pp.108-122, 2006.

Y. Park, Y. M. Jung, S. Sarker, J. Lee, Y. Lee et al., Temperature-dependent infrared spectrum of, Sol. Energy Mater. Sol. Cells, vol.94, pp.857-864, 2010.

V. V. Varma and J. Fernandes, An Infrared Spectroscopic Study of the Low-Spin-High-spin transition in in Fe x Mn 1-x (Phen) 2 (NCS) 2 : A Composition-Induced Change in the Order of the Spin-State Transition, Chem. Phys. Lett, vol.167, pp.367-370, 1990.

G. Sankar, J. M. Thomas, V. Varma, G. U. Kulkani, and C. N. Rao, An investigation of the first-order spin-state transition in the Fe(Phen) 2 (NCS) 2 EXAFS and infrared spectroscopy, Chem. Phys. Lett, pp.79-83, 1996.

E. Smit, D. De-waal, and A. M. Heyns, The spin-transition complexes

I. Ft-ir, Mater. Res. Bull, vol.35, pp.1697-1707, 2000.

P. Durand, S. Pillet, E. Bendeif, C. Carteret, M. Bouazaoui et al., Room temperature bistability with wide thermal hysteresis in a spin crossover silica nanocomposite, J. Mater. Chem. C, vol.1, pp.1933-1942, 2013.
URL : https://hal.archives-ouvertes.fr/hal-00880310

A. Arroyave, A. Lennartson, A. Dragulescu-andrasi, K. S. Pedersen, S. Piligkos et al., Spin Crossover in Fe(II) Complexes with N 4 S 2 Coordination, Inorg. Chem, vol.55, pp.5904-5913, 2016.

G. A. Bain and J. F. Berry, Diamagnetic corrections and Pascal's constants, J. Chem. Educ, vol.85, pp.532-536, 2008.

. Crysalis-ccd, CRYSALIS-RED, vol.170, 2002.

A. Sheldrick and . Shelx97, Program for Crystal Structure Analysis, 1997.

O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. Howard, and H. Puschmann, OLEX2: A complete structure, refinement and analysis program, J. Appl. Crystallogr, vol.42, pp.339-341, 2009.