Crystal Structure of Bis(ethylenediphosphinetetraacetic acid)palladium(II) Bis(dihydrogenethylenediphosphinetetraacetato)palladate(II) Tetrahydrate Hydrobromide (1/1): An Unusual Case of Bromide Uncoordinated to Palladium(II)

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Title:Crystal Structure of Bis(ethylenediphosphinetetraacetic acid)palladium(II) Bis(dihydrogenethylenediphosphinetetraacetato)palladate(II) Tetrahydrate Hydrobromide (1/1): An Unusual Case of Bromide Uncoordinated to Palladium(II)
Creators:
Podlaha, Jaroslav
Podlahová, Jana
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 2, pp. 359-366

Abstract

<p>Synthesis, crystal and molecular structure of the title compound as a representative of the complexes of phosphineacetic acids with soft metal ions is described. Crystal data: triclinic, <i>P1</i>, <i>a</i> = 10.809(1), <i>b</i> = 14.922(1), <i>c</i> = 10.617(1) Å, α = 108.871(7), β = 102.773(9), γ = 102.970(7)°, <i>Z</i> = 1, <i>R</i> = 0.031 for 4&nbsp;545 observed reflections. The structure is built of layers composed of hydrogen-bonded ligands; the layers are joined, in alternate manner, by Pd(II) ions, water molecules and bromide anions. As an average, one proton of the tetraprotonated ligand is released during complexation even in protic solvent (aqueous acetic acid), resulting in the given ionic composition with non-equivalent Pd(II) centers. The carboxyl groups and, surprisingly, even the bromide ion are not coordinated to Pd. The proton assigned formally to hydrobromic acid was not located and is possibly disordered.

Title:Crystal Structure of Bis(ethylenediphosphinetetraacetic acid)palladium(II) Bis(dihydrogenethylenediphosphinetetraacetato)palladate(II) Tetrahydrate Hydrobromide (1/1): An Unusual Case of Bromide Uncoordinated to Palladium(II)
Creators:
Podlaha, Jaroslav
Podlahová, Jana
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:59
Number:2
Page Range:pp. 359-366
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19940359UNSPECIFIED
ID Code:451
Item Type:Article
Deposited On:06 Feb 2009 17:01
Last Modified:06 Feb 2009 16:01

Citation

Podlaha, Jaroslav; Podlahová, Jana (1994) Crystal Structure of Bis(ethylenediphosphinetetraacetic acid)palladium(II) Bis(dihydrogenethylenediphosphinetetraacetato)palladate(II) Tetrahydrate Hydrobromide (1/1): An Unusual Case of Bromide Uncoordinated to Palladium(II). Collection of Czechoslovak Chemical Communications, 59 (2). pp. 359-366. ISSN 0010-0765

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