A novel pyrazolato-bridged di-palladium髤 complex, {[(phen)Pd(Me2Pz-H)]2(μ-Me2Pz)}(NO3)(BF4)2(MeCN)(Me2Pz-H=3,5-dimethyl pyrazole; μ-Me2Pz=3,5-dimethyl pyrazolate), was synthesized and characterized by the element analysis and single crystal X-ray diffraction. It crystallizes in the monoclinic space group P21/c with unit cell parameters: a=1.131 6(3) nm, b=1.858 5(4) nm, c=2.127 0(5) nm, β=90.037(4)°, and V=4.473 2(18) nm3, Z=4, R=0.043 3, wR=0.123 7. The X-ray crystal structure analysis revealed that two Pd髤 atoms were bridged by one pyrazolate, and the other two pyrazole molecules were coordinated to the two Pd髤 atoms, respectively. The Pd...Pd separation within the complex is 0.349 2(1)nm, indicating quite weak interaction. CCDC: 290065.
A novel μ-S-bridged di-palladium(Ⅱ) complex, {[(phen)Pd( μ-SPr)2Pd(phen)](NO3)2·2H2O} (1) was synthesized and characterized by the 1H NMR, element analysis and single crystal X-ray diffraction. It crystallizes in the monoclinic space group C2/c with unit cell parameters: a=2.165 1(3) nm, b=1.291 4(2) nm, c=2.716 2(3) nm, β=111.987(3)°, and V=7.041 8(16) nm3, Z=8, R=0.054 4, wR=0.127 4. The X-ray crystal structure analysis revealed that two 1,10-phenanthroline palladium(Ⅱ) moieties were bridged by two n-propylmercapatan molecules in coplanar fashion with the dimensions of 1.55 nm × 0.88 nm. The plane-to-plane distance of the complex 1 is 0.33 nm, which reveals strong aromatic-aromatic π-π interaction. CCDC: 292998.
