C 11H 16Cl 2 N 2 Pd, orthorhombic, P 2 1 2 1 2 1 (no. 19), a =11.246(2) Å, b =12.222(2) Å, c =19.637(4) Å, V =2699.1 Å 3 , Z =8, R gt (F) =0.027, wR ref (F 2 ) =0.060, T =200 K.
Source of materialThe title compound was preparedbyreaction of Li 2 PdCl 4 and ( S )-2-(anilinomethyl)-pyrrolidine (molar ratio 1:1) in distilled water at 298 K.The resulting yellow solid, after concentration to dryness, was treated with am ixture of CH 2 Cl 2 /CH 3 OH.After filtration from the resulting solution, crystals of the complex were obtained.
Experimental detailsAll non-hydrogen atoms, except the disordered Catoms which were refined only isotropically, were refined anisotropically. The Hatoms bound to Catoms were included at calculated positions and refined by using the riding model. The Hatoms attached to N atoms were found from Fourier difference maps and refined freely.
DiscussionChiral chelating bidentate nitrogen ligands have found widespread application in asymmetric homogeneousc atalysis by transition metal complexes [1,2]. Their palladium complexes are used as efficient catalyst in anumber of reactions such as green oxidations of alcohols in an aqueous biphasic system [3] and enantio-selective allylic alkylation [4]. Asp art of our research on transition metal complexes and their application in catalytic valorisation of natural terpenes [5][6][7][8][9], and before employing any catalytic procedures, we try to obtain apalladium complex of dichloro((S )-2-(anilinomethyl)-pyrrolidine. The environment of palladium atom is made up of ( S )-2-(anilinomethyl)-pyrrolidine linked in bidentate manner through it two nitrogen atoms, defining af ive-membered chelate ring and two chlorine atoms. The phenyl ring in one of the both molecules of the asymmetric unit is disordered. The main difference of the two molecules is in the angles between the coordinationplanes (Pd1, Cl1, Cl2, N1, N2and Pd2, Cl3, Cl4, N3, N4, respectively) and the planes defined by the phenyl rings being 73.0(2)°for the first molecule and 82.8(2)°/86.7(2)°for the second, respectively.