Crystal structures and spectroscopic properties of palladium complexes isolated from Pd-EDTA solutions

M. Kaplun; M. Sandstrom; D. Bostrom; A. Shchukarev; Per Persson

doi:10.1016/j.ica.2004.09.027

Crystal structures and spectroscopic properties of palladium complexes isolated from Pd-EDTA solutions

M. Kaplun, M. Sandstrom, D. Bostrom, A. Shchukarev, Per Persson

Umeå University

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Abstract

Two complexes were isolated from aqueous Pd(NO3)(2)-Na(2)H(2)EDTA solutions and studied by single crystal X-ray diffraction, IR/Raman spectroscopy, and photoelectron spectroscopy. The first complex, Pd(Hkpda)(2) (kpda = ketopiperazinediacetate dianion, C8H10N2O5). forms yellow parallelepipeds during slow evaporation of Pd(NO3)(2)-Na(2)HEDTA solution at 25degreesC, and is a result of EDTA oxidation. The second one, [Pd(mu-H(2)EDTA)](2) . 2NaNO(3) . 7.5H(2)O, with two EDTA molecules acting as bridges between two palladium atoms, forms yellow bipyramides during fast evaporation at 60degreesC. In both complexes, the palladium atoms adopt a planar trans-geometry by bonding to two nitrogen and two oxygen atoms of two ligand molecules. (C) 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	527-534
Journal	Inorganica Chimica Acta
Volume	358
DOIs	https://doi.org/10.1016/j.ica.2004.09.027
Publication status	Published - 2005
Externally published	Yes

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3

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Earth and Related Environmental Sciences

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10.1016/j.ica.2004.09.027

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title = "Crystal structures and spectroscopic properties of palladium complexes isolated from Pd-EDTA solutions",

abstract = "Two complexes were isolated from aqueous Pd(NO3)(2)-Na(2)H(2)EDTA solutions and studied by single crystal X-ray diffraction, IR/Raman spectroscopy, and photoelectron spectroscopy. The first complex, Pd(Hkpda)(2) (kpda = ketopiperazinediacetate dianion, C8H10N2O5). forms yellow parallelepipeds during slow evaporation of Pd(NO3)(2)-Na(2)HEDTA solution at 25degreesC, and is a result of EDTA oxidation. The second one, [Pd(mu-H(2)EDTA)](2) . 2NaNO(3) . 7.5H(2)O, with two EDTA molecules acting as bridges between two palladium atoms, forms yellow bipyramides during fast evaporation at 60degreesC. In both complexes, the palladium atoms adopt a planar trans-geometry by bonding to two nitrogen and two oxygen atoms of two ligand molecules. (C) 2004 Elsevier B.V. All rights reserved.",

author = "M. Kaplun and M. Sandstrom and D. Bostrom and A. Shchukarev and Per Persson",

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language = "English",

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journal = "Inorganica Chimica Acta",

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TY - JOUR

T1 - Crystal structures and spectroscopic properties of palladium complexes isolated from Pd-EDTA solutions

AU - Kaplun, M.

AU - Sandstrom, M.

AU - Bostrom, D.

AU - Shchukarev, A.

AU - Persson, Per

N1 - 3

PY - 2005

Y1 - 2005

N2 - Two complexes were isolated from aqueous Pd(NO3)(2)-Na(2)H(2)EDTA solutions and studied by single crystal X-ray diffraction, IR/Raman spectroscopy, and photoelectron spectroscopy. The first complex, Pd(Hkpda)(2) (kpda = ketopiperazinediacetate dianion, C8H10N2O5). forms yellow parallelepipeds during slow evaporation of Pd(NO3)(2)-Na(2)HEDTA solution at 25degreesC, and is a result of EDTA oxidation. The second one, [Pd(mu-H(2)EDTA)](2) . 2NaNO(3) . 7.5H(2)O, with two EDTA molecules acting as bridges between two palladium atoms, forms yellow bipyramides during fast evaporation at 60degreesC. In both complexes, the palladium atoms adopt a planar trans-geometry by bonding to two nitrogen and two oxygen atoms of two ligand molecules. (C) 2004 Elsevier B.V. All rights reserved.

AB - Two complexes were isolated from aqueous Pd(NO3)(2)-Na(2)H(2)EDTA solutions and studied by single crystal X-ray diffraction, IR/Raman spectroscopy, and photoelectron spectroscopy. The first complex, Pd(Hkpda)(2) (kpda = ketopiperazinediacetate dianion, C8H10N2O5). forms yellow parallelepipeds during slow evaporation of Pd(NO3)(2)-Na(2)HEDTA solution at 25degreesC, and is a result of EDTA oxidation. The second one, [Pd(mu-H(2)EDTA)](2) . 2NaNO(3) . 7.5H(2)O, with two EDTA molecules acting as bridges between two palladium atoms, forms yellow bipyramides during fast evaporation at 60degreesC. In both complexes, the palladium atoms adopt a planar trans-geometry by bonding to two nitrogen and two oxygen atoms of two ligand molecules. (C) 2004 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.ica.2004.09.027

DO - 10.1016/j.ica.2004.09.027

M3 - Article

SN - 0020-1693

VL - 358

SP - 527

EP - 534

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Crystal structures and spectroscopic properties of palladium complexes isolated from Pd-EDTA solutions

Abstract

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