Synthesis, structure and dioxygen reactivity of Ni(II) complexes with mono-, bis-, tetra- and hexa-oxime ligands

Synthesis, structure and dioxygen reactivity of Ni(II) complexes with mono-, bis-, tetra- and hexa-oxime ligands Full article

Journal

Polyhedron
ISSN: 1873-3719 , E-ISSN: 0277-5387

Output data

Year: 2014, Volume: 71, Pages: 24-33 Pages count : 10 DOI: 10.1016/j.poly.2014.01.003

Authors

Boyko Yaroslav D. ¹ , Sukhorukov Alexey Yu. ² , Semakin Artem N. ² , Nelyubina Yulia V. ³ , Ananyev Ivan V. ³ , Rangappa K.S. ⁴ , Ioffe Sema L. ²

Affiliations

1	Higher Chemical College RAS, Miusskaya square 9, 125047 Moscow, Russia
2	N.D. Zelinsky Institute of Organic Chemistry, Leninsky prospect 47, 119991 Moscow, Russia
3	A.N. Nesmeyanov Institute of Organoelement Compounds, Vavilov str. 28, 119991 Moscow, Russia
4	University of Mysore, Crawford Hall, Mysore 570 005, Karnataka, India

Four nickel complexes with β-(oximinoalkyl)amine ligands OxnHn containing one (Ox1H1), two (Ox2H2), four (Ox4H4) and six (Ox6H6) oxime groups were synthesized and characterized by elemental analysis, FTIR, HRMS and single crystal X-ray diffraction. β-Oximinoalkylamines OxnHn act as polydentate ligands forming five-membered chelate rings, in which nickel is coordinated with both amine and oxime nitrogen atoms. In all structurally characterized complexes, OH-groups of oximes arms are involved in hydrogen bonding with counterions (Cl−), which are located in the inner or outer coordination sphere of the nickel atom. Two new structural types of pseudo-octahedral Ni(II) β-oximinoalkylamine complexes containing two ligands per one nickel ion (Ni(Ox1H1)2Cl2 and Ni(Ox2H2)2Cl2) were identified. Dioxygen reactivity of the obtained complexes in aerobic oxidation of triphenylphosphine was studied. Bis-oxime complex Ni(Ox2H2)2Cl2 was found to be the most active promoter of triphenylphosphine oxidation among the synthesized nickel complexes.

Boyko Y.D. , Sukhorukov A.Y. , Semakin A.N. , Nelyubina Y.V. , Ananyev I.V. , Rangappa K.S. , Ioffe S.L.
Synthesis, structure and dioxygen reactivity of Ni(II) complexes with mono-, bis-, tetra- and hexa-oxime ligands
Polyhedron. 2014. V.71. P.24-33. DOI: 10.1016/j.poly.2014.01.003 WOS Scopus OpenAlex

Web of science:	WOS:000333511700004
Scopus:	2-s2.0-84893440195
OpenAlex:	W2092808523

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OpenAlex	8
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