Synthesis, Characterization, and Crystal Structures of Palladium(II) Complexes with Amino Acid Substituted Triphenylphosphine Ligands (CROSBI ID 587481)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Kokan, Zoran ; Perić, Berislav ; Kirin, Srećko I.
engleski
Synthesis, Characterization, and Crystal Structures of Palladium(II) Complexes with Amino Acid Substituted Triphenylphosphine Ligands
Bioinspired asymmetric catalysts combine transition metals with biooligomers. In these metallated chiral biooligomers, the metal centre dominates the chemical activity, while the biooligomer has the potential to induce selectivity. Recently, we applied amino acid substituted triphenylphosphines as ligands in the Rh(I)-catalyzed asymmetric hydrogenation with selectivity up to 68% e.e.[1] Herein we present the synthesis and characterization of potential alkylation catalysts [Pd(Lig-Gly-OMe)2Cl2] 1 and [Pd(Lig-Phe-OEt)2Cl2] 2 ; Lig- = Ph2P-pC6H4-C(O)-. Both studied complexes 1 and 2 reveal trans square-planar coordination geometry. Their crystal packing is dominated by hydrogen bonding of the amide groups, the H-bonding patterns are however different. In the orthorhombic complex 1, perpendicular orientation of the two amide groups (connected by two-fold rotation symmetry) results in a 3D H-bonding network. In the monoclinic complex 2, the amide groups are almost coplanar (connected by a pseudo-centre of inversion) resulting in a 2D H-bonded array. [1] Z. Kokan and S. I. Kirin, RSC Adv. 2012, in press ; doi: 10.1039/c2ra20598j
amino acids; metallated bioconjugates; Pd(II) complexes
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Podaci o prilogu
57-57.
2012.
objavljeno
Podaci o matičnoj publikaciji
Book of Abstracts
Podaci o skupu
21th Slovenian - Croatian Crystallographic Meeting
predavanje
14.06.2012-17.06.2012
Pokljuka, Slovenija