Cyclometallated Ni(II) and Pd(II) Complexes of the Azomethine Compounds: Synthesis and Structures
- 5 Downloads
New Ni(II) and Pd(II) complexes (Ia and Ib) are synthesized on the basis of the azomethine compound 2-[(E)-[4-methyl-2-[(Z)-p-tolylazo]phenyl]iminomethyl]phenol. The structures and properties of the complexes are characterized by IR spectroscopy, 1Н NMR spectroscopy, and X-ray diffraction analysis (СIF files CCDC nos. 1899223 (Ia) and 1899224 (Ib)). The complex formation affords cyclometallated chelates. According to the X-ray diffraction data, the crystals of the Ni(II) and Pd(II) complexes are isostructural with the square geometry of the coordination mode (MCN2O, M = Ni, Pd) and formation of two five-membered and one six-membered metallocycles.
Keywords:azo-azomethines metal complexes cyclometallation X-ray diffraction analysis
The equipment of the Center for Collective Use “Molecular Spectroscopy” was used. The X-ray diffraction studies of the NiL and PdL complexes were carried out on the equipment of the Center for Collective Use of Physical Methods of Investigation at the Kurnakov Institute of General and Inorganic Chemistry (Russian Academy of Sciences).
This work was supported by the Ministry of Education and Science of the Russian Federation (project no. 4.5388.2017/8.9). The X-ray diffraction studies of the NiL and PdL complexes were carried out in the framework of the state task of the Kurnakov Institute of General and Inorganic Chemistry (Russian Academy of Sciences) in the area of basic research.
CONFLICT OF INTEREST
The authors declare that they have no conflicts of interest.
- 4.Kogan, V.A. and Shcherbakov, I.N., Ros. Khim. Zh., 2004, vol. 48, no. 1, p. 69.Google Scholar
- 7.Gatteschi, D., Sessoli, R., and Cornia, A., Comprehensive Coordination Chemistry II, Lever, A.B.P, Ed., Amsterdam: Elsevier-Pergamon, 2003, vol. 2, p. 393.Google Scholar
- 9.Organic Light-Emmiting Devices, Mueller, K. and Schert, U., Eds., Weinheim: Wiley-VCH, 2006, р. 94.Google Scholar
- 11.Bren, V.A., Russ. Chem. Rev., 2001, vol. 70, p. 1017. https://doi.org/10.1070/RC2001v070n12ABEH000667
- 12.Ushakov, E.N., Alfimov, M.V., and Gromov, S.P., Russ. Chem. Rev., 2008, vol. 77, p. 39. https://doi.org/10.1070/RC2008v077n01ABEH003757
- 13.Halcrow, M.A., Comprehensive Coordination Chemistry II, Que, L. and Tolman, W.B., Eds., New York: Elsevier-Pergamon, 2003, vol. 8, p. 395.Google Scholar
- 14.Bioinorganic Chemistry, Ros. Khim. Zh., 2004, vol. 48, no. 4.Google Scholar
- 17.Spin Crossover in Transition Metal Compounds, Gütlich, P. and Goodwin H.A., Eds., Topics in Current Chemistry, Berlin: Springer, 2004, vols. 233–235.Google Scholar
- 19.Nihei, M., Shiga, T., Maeda, Y., and Oshio, H., Chem. Rev., 2007, vol. 251, p. 2606.Google Scholar
- 22.SMART (control) and SAINT (integration) Software. Version 5.0, Madison: Bruker AXS Inc., 1997.Google Scholar
- 23.Sheldrick, G.M., SADABS. Program for Scanningand Correction of Area Detector Data, Göttingen: Univ. of Göttingen, 2004.Google Scholar
- 34.Pattanayak, P., Pratihar, J.L., Patra, D., et al., Eur. J. Inorg. Chem., 2007, p. 4263.Google Scholar
- 37.Giaser, T., Heidemeier, M., and Lügger, T., Dalton Trans., 2003, p. 2381.Google Scholar