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Synthesis and crystal structure of a palladium(II) complex with the amino acid L-citrulline

Published online by Cambridge University Press:  02 September 2015

Bruno Z. Mascaliovas ,
Fernando R.G. Bergamini ,
Alexandre Cuin  and
Pedro P. Corbi
Bruno Z. Mascaliovas
Affiliation:
Bioinorganic and Medicinal Chemistry Research Laboratory, LQBM, Institute of Chemistry, University of Campinas, UNICAMP, PO BOX 6154, 13083-970 Campinas, São Paulo, Brazil
Fernando R.G. Bergamini
Affiliation:
Bioinorganic and Medicinal Chemistry Research Laboratory, LQBM, Institute of Chemistry, University of Campinas, UNICAMP, PO BOX 6154, 13083-970 Campinas, São Paulo, Brazil
Alexandre Cuin*
Affiliation:
LQBin – Laboratório de Química BioInorgânica – Departamento de Química, Instituto de Ciências Exatas, UFJF, 36036–330 Juiz de Fora, Minas Gerais, Brazil
Pedro P. Corbi
Affiliation:
Bioinorganic and Medicinal Chemistry Research Laboratory, LQBM, Institute of Chemistry, University of Campinas, UNICAMP, PO BOX 6154, 13083-970 Campinas, São Paulo, Brazil
*
a)Author to whom correspondence should be addressed. Electronic mail: alexandre_cuin@yahoo.com
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Abstract

Synthesis and structural characterization of a novel palladium Pd(II) complex with the amino acid L-citrulline (Cit, C6H13N3O3) are presented in this paper. Elemental analysis indicates a 1:2 metal/ligand molar composition for the complex, with the molecular formula PdC12H24N6O6. The compound was also characterized by infrared (IR) spectroscopic measurements and the crystal structure has been solved by powder X-ray diffraction data with simulated annealing strategy in real space. The Pd(II) complex crystallizes in the triclinic system with space group P-1 and cell parameters a = 4.6493(4) Å, b = 5.222(4) Å, c = 18.040(2) Å, α = 77.41(6)°, β = 94.72(7),° and γ = 101.45(7)°. The crystal structure confirms the presence of Pd(II) ions in a nearly square planar environment and the molecular formula with deprotonated citrulline as proposed by analytical and spectroscopic data.

Keywords

X-raypowder diffractionamino acidspalladium complex
Type
New Diffraction Data
Information
Powder Diffraction , Volume 30 , Issue 4 , December 2015 , pp. 357 - 361
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Copyright
Copyright © International Centre for Diffraction Data 2015 

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