Archive: 2010 - Moldavian Journal of the Physical Sciences

05 Jun 2010

2010
V. 9
2
(p.162 - 173)

Synthesis and crystal structure of two Co(III) α-dioximates with the formula [Co(DH)2(PPh3)(H2O)]2[EF6]·nH2O

Authors:

Rija, Andrei; Bouroş, Pavlina; Coropceanu, Eduard; Bologa, Olga; Gdaniec, Maria; Vologzhanina, A.; Bulhac, Ion

Summary:

The [Co(DH)2(PPh3)(H2O)]2[TiF6]·2.5H2O (1) and Co(DH)2(PPh3)(H2O)]2[ZrF6]·3.75H2O (2) complexes have been obtained from the CoEF6·6H2O - 2DH2 - PPh3 system, where DH2 is the dimethylglyoxime, E is Ti or Zr, and PPh3 is triphenylphosphine. The structure and composition of these complexes have been elucidated by means of modern physical methods: element analysis, spectroscopy in UV-Vis, IR, NMR 1H, 19 F, X-ray investigation. The Co(III) cation’s coordination polyhedron consists of four nitrogen atoms of dimethylglyoxime monoanions, the phosphor atom of triphenylphosphine and the oxygen atom of the water molecule. In the equatorial plane of the complex cation octahedron, two DH- monoanions are linked through intramolecular O–H…O hydrogen bonds. π-π interactions between the phenylic ring of PPh3 and metalocycle have been revealed in the complex cations. In the crystal, the components of compounds 1 and 2 form a complicated system of hydrogen bonds.

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BibTeX

@article{ibn_4226,
author = {Rija, A.P. and Bouroş, P.N. and Coropceanu, E.B. and Bologa, O.A. and Gdaniec, M. and Vologzhanina, A.V. and Bulhac, I.I.},
title = {Synthesis and crystal structure of two Co(III) α-dioximates with the formula [Co(DH)2(PPh3)(H2O)]2[EF6]·nH2O },
journal = {Moldavian Journal of the Physical Sciences},
year = {2010},
volume = {9 (2)},
pages = {162-173},
month = {Jun},
abstract = {(EN) The [Co(DH)2(PPh3)(H2O)]2[TiF6]·2.5H2O (1) and Co(DH)2(PPh3)(H2O)]2[ZrF6]·3.75H2O 

(2) complexes have been obtained from the CoEF6·6H2O - 2DH2 - PPh3 system, where DH2 is the 
dimethylglyoxime, E is Ti or Zr, and PPh3 is triphenylphosphine. The structure and composition 
of these complexes have been elucidated by means of modern physical methods: element analysis, spectroscopy in UV-Vis, IR, NMR 1H, 19

F, X-ray investigation. The Co(III) cation’s coordination polyhedron consists of four nitrogen atoms of dimethylglyoxime monoanions, the 
phosphor atom of triphenylphosphine and the oxygen atom of the water molecule. In the equatorial plane of the complex cation octahedron, two DH-
monoanions are linked through intramolecular O–H…O hydrogen bonds. π-π interactions between the phenylic ring of PPh3 and 
metalocycle have been revealed in the complex cations. In the crystal, the components of compounds 1 and 2 form a complicated system of hydrogen bonds. },
url = {https://ibn.idsi.md/vizualizare_articol/4226},
}

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(2) complexes have been obtained from the CoEF6·6H2O - 2DH2 - PPh3 system, where DH2 is the 
dimethylglyoxime, E is Ti or Zr, and PPh3 is triphenylphosphine. The structure and composition 
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<dc:source>Moldavian Journal of the Physical Sciences 9 (2) 162-173</dc:source>
<dc:title>Synthesis and crystal structure of two Co(III) α-dioximates with the formula [Co(DH)2(PPh3)(H2O)]2[EF6]·nH2O </dc:title>
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“ ... ”

SM ISO690:2012

RIJA, Andrei; BOUROSH, Pavlina; COROPCEANU, Eduard; BOLOGA, Olga; GDANIEC, Maria; VOLOGZHANINA, A.; BULHAK, Ion. Synthesis and crystal structure of two Co(III) α-dioximates with the formula [Co(DH)2(PPh3)(H2O)]2[EF6]·nH2O . In: Moldavian Journal of the Physical Sciences. 2010, nr. 2(9), pp. 162-173. ISSN 1810-648X.