Synthesis and structure of nonacoordinated tris-chelate lanthanide (III) complexes with tridentate 2,4,6,8-tetrakis(tert-butyl)-9-hydroxyphenoxazin-1-one ligands

Synthesis and structure of nonacoordinated tris-chelate lanthanide (III) complexes with tridentate 2,4,6,8-tetrakis(tert-butyl)-9-hydroxyphenoxazin-1-one ligands Full article

Journal

Inorganica Chimica Acta
ISSN: 0020-1693

Output data

Year: 2017, Volume: 458, Pages: 116-121 Pages count : 6 DOI: 10.1016/j.ica.2017.01.001

Tags

Lanthanides, Magnetic properties, Nonacoordinated complexes, Molecular structures

Authors

Ivakhnenko Eugeny P. ¹ , Romanenko Galina V. ² , Simakov Vladimir I. ¹ , Knyazev Pavel A. ¹ , Bogomyakov Artyom S. ² , Lyssenko Konstantin A. ³ , Minkin Vladimir I. ¹

Affiliations

1	Institute of Physical and Organic Chemistry Southern Federal University, 194/2 Stachki St., Rostov-on-Don 344090, Russian Federation
2	International Tomography Center Siberian Branch of Russian Academy of Sciences, 3a Institutskaya St., Novosibirsk 630090, Russian Federation
3	A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov St., Moscow 119991, Russian Federation

A series of new nonacoordinated tris-chelate lanthanide (III) complexes was prepared by the reaction of the reduced form of the tricyclic 2,4,6,8-tetrakis(tert-butyl)-9-hydroxyphenoxazin-1-one ligand with Ln(III) acetates (Ln = La, Pr, Sm, Eu, Gd, Tb, Dy, Yb). The coordination polyhedron in all complexes, the molecular structures of which were established by X-ray diffraction studies, is the tricapped trigonal prism composed by six oxygen and three nitrogen atoms of the deprotonated ligand. Electronic absorption spectra of the deeply colored complexes contain a broad long wavelength absorption band ranging from 600 to 900 nm. The values of effective magnetic moments μeff (at 300 K) were found to be equal to 1.78, 3.41, 3.50, 4.35, 7.85, 9.22 and 10.32 μB for the Sm(III), Pr(III), Eu(III), Yb(III), Gd(III), Tb(III) and Dy(III) complexes, respectively.

Ivakhnenko E.P. , Romanenko G.V. , Simakov V.I. , Knyazev P.A. , Bogomyakov A.S. , Lyssenko K.A. , Minkin V.I.
Synthesis and structure of nonacoordinated tris-chelate lanthanide (III) complexes with tridentate 2,4,6,8-tetrakis(tert-butyl)-9-hydroxyphenoxazin-1-one ligands
Inorganica Chimica Acta. 2017. V.458. P.116-121. DOI: 10.1016/j.ica.2017.01.001 WOS Scopus

Published online:

Jan 3, 2017

Web of science:	WOS:000394633400014
Scopus:	2-s2.0-85009164489

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