journal article·2020-09-22Open access

Spin Crossover in New Iron(II) Coordination Compounds with Tris(pyrazol-1-yl)Methane

Olga Shakirova, Ludmila Lavrenova

Crystals· Volume 10· Issue 9

Abstract

We review here new advances in the synthesis and investigation of iron(II) coordination compounds with tris(pyrazol-1-yl)methane and its derivatives as ligands. The complexes demonstrate thermally induced spin crossover accompanied by thermochromism. Factors that influence the nature and temperature of the spin crossover are discussed.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Magnetism in coordination complexes · Lanthanide and Transition Metal Complexes · Electron Spin Resonance Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and Chemical Technologies, Faculty of Machinery and Chemical Technologies, Federal State Budget Institution of Higher Education, Komsomolsk-na-Amure State University, Lenin Ave. 27, 681013 Komsomolsk-on-Amur, Russia

Department of Chemistry of Coordination, Cluster and Supramolecular Compounds, Laboratory of Synthesis of Complex Compounds, Federal State Budget Institution for Science, Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Acad. Lavrentyev Ave. 3, 630090 Novosibirsk, Russia

Department of Analytical Chemistry, Faculty of Natural Sciences, Novosibirsk State University, Pirogov Str. 2, 630090 Novosibirsk, Russia

Funding

Russian Science Support Foundation

References (73)

Show source-provided references
1. Gütlich, P., and Goodwin, H.A. (2004). Spin Crossover in Transition Metal Compounds: I–III. Topics in Current Chemistry, Springer.10.1007/b96439 ↗
2. Molecular spin crossover phenomenon: Recent achievements and prospects10.1039/c1cs15042a ↗
3. Halcrow, M.A. (2013). Spin-Сrossover Materials: Properties and Applications, John Wiley & Sons.10.1002/9781118519301 ↗
4. Spin crossover in iron(II)-containing complex compounds under a pressure10.1063/1.4891445 ↗
5. Spin crossover-an overall perspective10.1007/b13527 ↗
6. Photoswitchable coordination compound
7. Ligand-Driven Light-Induced Spin Change (LD-LISC): A promising photomagnetic effect10.1007/b95419 ↗
8. Reversible quantitative guest sensing via spin crossover of an iron(II) triazole10.1039/C5SC04583E ↗
9. Spin transitions in six-coordinate iron(II) complexes10.1016/S0010-8545(00)80430-0 ↗
10. Spin crossover in iron(II) complexes10.1007/BFb0111269 ↗
11. The nature of spin-state transitions in solid complexes of iron(II) and the interpretation of some associated phenomena10.1021/cr00067a003 ↗
12. High-temperature spin transition in iron(II) coordination compounds with triazoles
13. Unusual metal centres/coordination spheres in spin crossover compounds10.1016/j.ccr.2019.213148 ↗
14. Spin crossover phenomena in Fe(II) complexes10.1039/b003504l ↗
15. Spin-transition polymers: From molecular materials toward memory devices10.1126/science.279.5347.44 ↗
16. Bousseksou, A., Vieu, C., Letard, J.-F., Demont, P., Tuchagues, J.-P., Malaquin, L., Menegotto, J., and Salmon, L. (2004). Molecular Memory and Method for Making Same. (1430552A1), European Patent.
17. Electroluminescence quenching caused by a spin-crossover transition10.1246/cl.2008.374 ↗
18. Spin transition molecular materials: Intelligent contrast agents for magnetic resonance imaging10.1021/ja0349599 ↗
19. Kahn, O., Jay, C., Garcia, Y., Codjovi, E., and Philips Electronics, NV. (1996). Chemical Spin Transition Compounds Comprising Metal-Ligand Molecules Assotiated with Anion—Useful as Indicators of Temperature Increase Above a Threshold and Incorporated as Anti-Falsifiable Markers. (842988), European Patent.
20. Spin crossover and thermochromism of iron(II) coordination compounds with 1,2,4-triazoles and tris(pyrazol-1-yl)methanes10.1002/ejic.201200980 ↗
21. Dramatic Remote Substitutent Effects on the Electronic Spin State of Bis(scorpionate) Iron(II) Complexes10.1002/anie.200802567 ↗
22. Third-Generation Scorpionates [RBpz3]−—How Influential Is the Nondonor Substituent R?10.1002/ejic.201500801 ↗
23. A density functional study of the spin state energetics of polypyrazolylborato complexes of first-row transition metals10.1039/c3cp55488k ↗
24. Geminal poly(1-pyrazolyl)alkanes and their coordination chemistry10.1021/ja00720a021 ↗
25. Four-, five-, and six-co-ordinated iron(II) complexes with poly(1-pyrazolyl)methanes10.1016/0020-1650(79)80086-0 ↗
26. Bigmore, H.R., Lawrence, S.C., Mountford, P., and Tredget, C.S. (2005). Coordination, organometallic and related chemistry of tris(pyrazolyl)methane ligands. Dalton Trans., 635–651.10.1039/b413121e ↗
27. Spin equilibria in octahedral iron(II) poly(1-pyrazolyl)borates10.1021/ja00989a015 ↗
28. Substituent effects on the spin equilibrium in iron(II) pyrazolylborate complexes10.1016/0020-1693(94)04337-U ↗
29. Halcrow, M.A. (2016). The effect of ligand design on metal ion spin state—Lessons from spin crossover complexes. Crystals., 6.10.3390/cryst6050058 ↗
30. Effect of water on spin transitions in Fe(II) complexes with triazoles10.1023/A:1018824116871 ↗
31. Iron(II) complexes with 4-R-1,2,4-triazoles (r = ethyl, propyl) exhibiting 1A1↔5T2 spin transition10.1023/A:1009540925335 ↗
32. Lattice water molecules tuned spin-crossover for an iron(II) complex with thermal hysteresis10.1039/C4DT02587C ↗
33. Prototypical iron(II) complex with 4-amino-1,2,4-triazole reinvestigated: An unexpected impact of water on spin transition10.1039/C6CP06854E ↗
34. Photoperturbation of the 1A⇔5T spin equilibrium in an iron(II) complex in solution via ligand field excitation10.1021/ic00063a044 ↗
35. Spin crossover in pyrazolylborate and pyrazolylmethane complexes10.1007/b13530 ↗
36. A Synthetic, structural, magnetic, and spectral study of several {Fe[tris(pyrazolyl)methane]2}(BF4)2 complexes: observation of an unusual spin-state crossover10.1021/ic001102t ↗
37. Structures and spectra of bis-tripodal iron(II) chelates, [FeL2]2+, where L=tris(pyrazol-1-yl)methane, tris(pyridin-2-yl)methane, bis(pyrazol-1-yl)(pyridin-2-yl)methane and tris(pyridin-2-yl)phosphine oxide. Magnetism and spin crossover in the (pz)3CH case10.1039/b003299i ↗
38. Syntheses, structures and electronic properties of zwitterionic iron(II) and cobalt(II) complexes featuring ambidentate tris(pyrazolyl)methanide ligands10.1002/chem.200802317 ↗
39. Synthetic, structural, magnetic, and mössbauer spectral study of {Fe[HC(3,5-Me2pz)3]2}I2 and its spin-state crossover behavior10.1002/1099-0682(200205)2002:5<1190::AID-EJIC1190>3.0.CO;2-U ↗
40. Spin-crossover in the complex of iron(II) nitrate with tris(3,5-dimethylpyrazol-1-yl)methane10.1016/j.ica.2011.11.030 ↗
41. Structural, electronic, and magnetic properties of {Fe[HC(3,5-Me2pz)3]2}(BF4)2 (pz = pyrazolyl): Observation of unusual spin-crossover behavior10.1021/ic000721z ↗
42. Spin crossover in the coordination compounds of iron(II) with tris(3,5-dimethylpyrazol-1-yl)methane10.1134/S1070328412070081 ↗
43. Spin crossover in iron(II) complexes with tris(pyrazol-1-yl)methane10.1134/S1070328410040068 ↗
44. High-temperature spin-crossover in coordination compounds of iron(II) with tris(pyrazol-1-yl)methane10.1016/j.ica.2010.08.013 ↗
45. High-temperature spin transition in the iron(II) trifluoromethylsulfonate, perrhenate, and tetraphenylborate complexes with tris(pyrazol-1-yl)methane10.1134/S107032841106008X ↗
46. Iron(II) closo-borate complexes with 1,2,4-triazole derivatives: Spin crossover in the iron(II) closo-borate complexes with tris(pyrazol-1-yl)methane10.1134/S0036023613060211 ↗
47. New iron(II) complexes [Fe(HC(pz)3)2]A2 with spin-crossover10.4028/www.scientific.net/SSP.233-234.534 ↗
48. Spin-crossover in coordination compounds of iron(II) with tris(pyrazol-1-yl)methane and cluster anions10.1134/S0022476615080090 ↗
49. Spin-crossover in iron(II) complexes with tris(pyrazol-1-yl)methane and сluster anions [{W6X8}X6]2− (X = Cl, Br, I)10.1016/j.molstruc.2019.03.015 ↗
50. Structure, magnetism and photomagnetism of mixed-ligand tris(pyrazolyl)methane iron(II) spin crossover compounds10.1039/b708773j ↗
51. Structural aspects of spin crossover. Example of the [(FeLn)(NCS)2] complexes10.1007/b95414 ↗
52. Lever, A.B.P. (1985). Inorganic Electronic Spectroscopy, Elsevier. [2nd ed.].
53. Variable temperature ir spectroscopy and quantum chemistry as the tool for diagnostics of metal spin state10.1016/j.cplett.2010.06.059 ↗
54. Spin Transition in Iron(II) Complexes with 1,2,4-Triazoles and Tetrazoles
55. Ligand field theoretical considerations10.1007/b13528 ↗
56. Sugano, S., Tanabe, Y., and Kamimura, H. (1970). Multiplets of Transition Metal Ions in Crystals, Academic Press. Pure and Applied Physics.
57. Crystal-field parameters for the low-spin nitrous-heterocycle-containing iron(II) complexes possessing spin transition
58. Cooperative Spin Transitions in Iron(II) Derivatives of 1,2,4-Triazole10.1071/CH9940263 ↗
59. 1A1 ↔ 5T2 spin transition in new thermochromic iron(II) complexes with 1,2,4-triazole and 4-amino-1,2,4-triazole10.1023/A:1021834715674 ↗
60. Real, J.A., Gaspar, A.B., and Munoz, M.C. (2005). Thermal, pressure and light switchable spin-crossover materials. Dalton Trans., 2062–2079.10.1039/b501491c ↗
61. Synthesis and Magnetic Properties of Iron(II) closo-Borate Complexes with Tris(3,5-Dimethylpyrazol-1-yl)Methane10.1134/S003602361507013X ↗
62. Structure and spin crossover in an iron(II) compound with tris(pyrazol-1-yl)methane and the complex [Eu(dipic)2(Hdipic)]2− anion10.1134/S0022476616030082 ↗
63. The Conducting Spin-Crossover Compound Combining Fe(II) Cation Complex with TCNQ in a Fractional Reduction State10.1021/acs.inorgchem.6b01829 ↗
64. Multiple bi-stability and tristability with dual spin-state conversions in [Fe(dpp)2][Ni(mnt)2]2·MeNO210.1021/ja910122r ↗
65. Structural Chemistry of Tetracyanopyrrolide (Part 2): Spin Crossover in a Bis-Tripodal Iron(II) Complex10.1002/zaac.201400532 ↗
66. Karlin, R. (1986). Magnetochemistry, Springer.10.1007/978-3-642-70733-9 ↗
67. High-temperature spin crossover in the [FeL2][FeL(NCS)3](NCS)·2H2O complex, L = tris(pyrazol-1-yl)methane10.1016/j.poly.2011.08.031 ↗
68. Mono- and heteroligand iron(II) complexes with tris(3,5-dimethylpyrazol-1-yl)methane10.1134/S107032841611004X ↗
69. Исследование методом мессбауэровской спектроскопии природы влияния лиганда и внешнесферного аниона в комплексах железа (II) с 1,2,4-триазолом и 4-амино-1,2,4-триазолом на температуру спинового перехода 1A1↔5T2
70. Упрощенная формула для температуры спинового перехода 1A1 ⇔ 5Т2 в комплексах Fe(II)
71. Synthesis, crystal structures and high-temperature spin-crossover of new inclusion compounds of iron(II) tris(pyrazol-1-yl)methane complex with p-sulfonatocalix[4]arene10.1016/j.ica.2018.02.021 ↗
72. Mononuclear and dinuclear iron thiocyanate and selenocyanate complexes of tris-pyrazolylmethane ligands10.1016/j.poly.2008.05.013 ↗
73. Spin crossover in homo- and heteroligand iron(II) complexes with tris(pyrazol-1-yl)methane derivatives10.1007/s11172-018-2195-3 ↗