Samarium(III) Complex Based on 5-Phenyl-2,2´-bipyridine with the Diethylenetriaminotetraacetic Acid Residue in the C6 Position: Synthesis, Crystal Structure, and Photophysical Properties

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Abstract

New samarium complex of 5-phenyl-2,2´-bipyridine with the diethylenetriaminotetraacetic acid (DTTA) residue in the C6 position, [(L2)Sm2Na5(H2О)9(C2O4)]n (I), is synthesized. The structure of complex I is studied by XRD (CIF file CCDC no. 2217968). The complex in the crystal is found to be a onedimensional coordination polymer, and the 2,2´-bipyridine fragments do not chelate the Sm3+ cation. The complex is characterized by a luminescence response to the addition of an excess of zinc cations.

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About the authors

A. P. Krinochkin

Ural Federal University; Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

S. E. Vatolina

Ural Federal University

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg

V. S. Gaviko

Ural Federal University; Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

I. A. Litvinov

Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences

Email: a.p.krinochkin@urfu.ru
Russian Federation, Kazan

M. I. Valieva

Ural Federal University; Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

Ya. K. Shtaitz

Ural Federal University

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg

S. S. Rybakova

Ural Federal University

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg

D. S. Kopchuk

Ural Federal University; Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

G. V. Zyryanov

Ural Federal University; Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

V. L. Rusinov

Ural Federal University; Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences

Email: a.p.krinochkin@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

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Supplementary files

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2. Fig. 1. Fragment of the coordination polymer of complex I in a crystal. Sodium atoms are shown in purple, samarium in light green, oxygen in red, nitrogen in blue and carbon in gray. The H atoms are not shown for clarity.

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3. Fig. 2. Geometry of the “monomeric link“ of the coordination polymer I. Ellipsoids of anisotropic displacements are shown with a probability of 50%. Sodium atoms are shown in purple, samarium in light green, oxygen in red, nitrogen in blue and carbon in gray. The H atoms are not shown for clarity.

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4. Fig. 3. Coordination of the central fragment (Na3O12) of complex I, atoms O(2) and O(7) are part of amino acid ligands; the remaining oxygen atoms belong to water molecules. Hydrogen atoms are shown as white spheres of arbitrary radius; an identified and refined crystallization water molecule (atom O(15)) is also shown.

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5. Fig. 4. A fragment of a package in a crystal of complex I; free volumes (VOIDS) are shown (projection along the b axis).

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6. Fig. 5. Absorption (a) and emission (b) spectra of complex I before (black lines) and after (red lines) addition of excess Zn2+ cations in water at room temperature.

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7. Scheme 1. Reagents and conditions: NaOH, H2O, Tcomn, then SmCl3 • 6H2O, Tcomn, 2 h.

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