4-BENZOYL-3-METHYL-1-PHENYLPYRAZOL-5-ONE BASED COMPLEXES OF NICKEL(II) AND COBALT(III) WITH A SCHIFF BASE

被引:0
|
作者
Gusev, A. N. [1 ]
Baluda, Y. I. [1 ]
Shulgin, V. F. [1 ]
Kryukova, M. A. [2 ]
Kiskin, M. A. [3 ]
机构
[1] Vernadsky Crimean Fed Univ, Simferopol, Russia
[2] St Petersburg Univ, St Petersburg, Russia
[3] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow, Russia
关键词
nickel(II); cobalt(III); Schiff base; XRD; hydrogen bond; magnetochemistry; SINGLE-ION MAGNETS; COPPER(II);
D O I
10.1134/S0022476623110069
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Coordination compounds of cobalt and nickel with an azomethine ligand (a product of 4-benzoyl-3-methyl-1-phenylpyrazol-5-one and 2-aminophenol condensation) are prepared and studied by XRD. It is established that Co(II) ions under the reaction conditions are oxidized to Co(III) to form (Et3NH)[CoL2]center dot 2H(2)O complexes, whereas Ni(II) ions form the (Et3NH)(H3L)[NiL(HL)]center dot H2O center dot Solv compound. The anionic part of the nickel complex is a supramolecular dimer [Ni(L)(HL)](2)(2-) assembled due to hydrogen bonds. The complexes are studied by static magnetic susceptibility techniques. It is shown that the Co compound is diamagnetic; this is confirmed by the oxidation of this compound and indicates that the metal ion occurs in the low-spin state. Weak ferromagnetic interactions of Ni(II) ions through bridging hydrogen bonds are discovered.
引用
收藏
页码:2090 / 2098
页数:9
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