Synthesis and structure of gold and copper complexes: [Ph3PhCH2P]+[AuCl4]?, [NH(C2H4OH)3]+[AuCl4]? · H2O, and [Ph3EtP] 2+ [Cu2Cl6]2?

Triphenylbenzylphosphonium tetrachloroaurate (I) and triethanolammonium tetrachloroaurate hydrate (II) were prepared by reacting tetrachloroauric acid in acetone with triphenylbenzylphosphonium and triethanolammonium, respectively. Triphenylethylphosphonium hexachlorodicuprate (III) was synthesized from triphenylethylphosphonium chloride and copper chloride in acetone. The crystal structures of complexes I to III were determined by single-crystal X-ray diffraction. The phosphorus atoms in complex I have a nearly undistorted tetrahedral coordination (CPC, 108.3°–110.6°; P-C, 1.788–1.793 ?). The coordination of nitrogen atoms in the cations of complex II is a distorted tetrahedron (CNC, 111.7°–112.4°). The square coordination of aurum in I and II is only slightly distorted: the ClAuCl angles are 89.6°–90.3° (I) and 89.5°–90.6° (II) and the Au-Cl distances are 2.256–2.278 ? I) and 2.280–2.285 ? (II). The phosphorus atoms in complex III are tetracoordinated (CPC, 106.34°–111.73°; P-C, 1.790–1.795 ?). The copper atoms in III have a distorted tetrahedral coordination (ClCuCl, 98.48°–144.85°; Cu-Cl, 2.1999–2.3263 ?). The central fragment Cu₂Cl₂ in the anion of complex III is bent relative to the Cu₂ axis (the chlorine atom deviates from the Cu₂Cl plane by 0.27 ?).     

Synthesis and structure of cobalt complexes [Me3EtN] 2+ [CoI4]2? and [Me3BuN] 2+ [CoI4]2?

Complexes [Me₃EtN]₂⁺[CoI₄]²⁻ (I) and [Me₃EtN]₂⁺[CoI₄]²⁻ (II) were synthesized by reacting trimethylalkylammonium iodide with cobalt(II) iodide in acetone. According to X-ray diffraction data, complexes I and II consist of tetrahedral tetraalkylammonium cations (for I, N-C is 1.481(5)–1.590(8) CNC is 107.3(3)°–111.6(3)°; for II, N-C is 1.485(8)–1.506(10) ? and CNC is 106.9(7)°–111.7(5)°) and [CoI₄]²⁻ anions (for I, Co-I is 2.5951(5)–2.6127(5) ? and ICoI is 104.67(2)°–113.23(2)°; for II, Co-I is 2.5914(8)–2.5943(9) ? and ICoI is 107.05(2)°–114.42(5)°).     

Tetraphenylantimony(V) hexachloroplatinate, tetrachloroaurate, and hexachlorostannate [Ph4Sb] 2+ [PtCl6]2?, [Ph4Sb]+[AuCl4]?, and [Ph4Sb] 2+ [SnCl6]2?: Synthesis and crystal structures

The reactions of tetraphenylantimony with hexachloroplatinic and chloroauric acids in benzene afford bis(tetraphenylantimony) hexachloroplatinate (I) and tetraphenylantimony tetrachloroaurate (II), respectively. Compound II is also synthesized from tetraphenylantimony chloride and chloroauric acid in acetone. Bis(tetraphenylantimony) hexachlorostannate (III) is synthesized from tin dichloride and tetraphenylantimony chloride in acetone or from tin tetrachloride and tetraphenylantimony chloride in benzene. The crystal structures of compounds I–III are determined by X-ray diffraction analysis. The antimony atoms in the [Ph₄Sb]⁺ cations have a distorted tetrahedral coordination (CSbC bond angles range from 105.7(1)° to 118.5(1)° (I), from 106.2(3)° to 114.4(3)° (II), and from 106.0(1)° to 117.1(1)° (III)). The Sb-C bond lengths vary in intervals of 2.094(2)–2.098(2), 2.087(7)–2.111(7), and 2.093–2.100(3) ?, respectively. The coordination of the Pt and Sn atoms in complexes I and III is close to an ideal octahedral coordination with ClPtCl and ClSnCl bond angles of 88.68(2)°–91.32(3)° and 88.84(3)°–91.16(3)°, respectively. The square coordination of the Au atom in complex II is slightly distorted: the Au-Cl bond lengths are 2.266(2)–2.277(2) ?, the ClAuCl bond angles are equal to 89.7(1)°–90.5(1)°, the root-mean-square deviation of the atoms from the coordination plane being 0.004 ?. Original Russian Text ? V.V. Sharutin, V.S. Senchurin, O.A. Fastovets, A.P. Pakusina, O.K. Sharutina, 2008, published in Koordinatsionnaya Khimiya, 2008, Vol. 34, No. 5, pp. 373–379.     

Phosphonium salts [Ph3AlkP] 2+ [Hg2I6]2? and [Ph3AlkP] 2+ [Hg4I10]2?: Synthesis and structure

Mercury complexes [Ph₃AlkP]₂⁺[Hg₂I₆]²⁻ and [Ph₃AlkP]₂⁺[Hg₄I₁₀]²⁻ (R = Me, Et, Pr, iso-Pr, Bu, iso-Bu) are synthesized by the reactions of triphenylalkylphosphonium Ph₃AlkPI with mercury iodide in acetone with the mole ratio 1: 1 and 1: 2, respectively. According to X-ray diffraction data, the phosphorus atom in the cations of the [Ph₃(iso-Pr)P]₂⁺[Hg₂I₆]²⁻, [Ph₃BuP]₂⁺[Hg₂I₆]²⁻, and [Ph₃(iso-Pr)P]₂⁺[Hg₄I₁₀]²⁻ complexes has a distorted tetrahedral coordination. The CPC bond angles and P-C bond lengths vary within 107.3(4)°-112.0(4)° and 1.774(8)-1.827(7) ?. In the [Hg₂I₆]²⁻ centrosymmetric binuclear anions, the mercury atoms of tetrahedral coordination lie in two near-perpendicular Hg₂I₆planes. Hg₄I₄ eight-membered cycles of the [Hg₄I₁₀]²⁻ tetranuclear anion are joined into polymeric chains through Hg … I coordination bonds (3.334, 3.681 &OA) due to which Hg atoms have a trigonal bipyramidal coordination. Original Russian Text ? V.V. Sharutin, V.S. Senchurin, N.N. Klepikov, O.K. Sharutina, 2009, published in Zhurnal Neorganicheskoi Khimii, 2009, Vol. 54, No. 2, pp. 267–273.     

Synthesis and structure of cobalt complexes [Ph3(n-Pr)P 2+ [CoI4]2? and [Ph3(n-Am)P 2+ [CoI4]2?

Complexes Ph₃(n-Pr)P₂⁺[CoI₄]²⁻ (I) and [Ph₃(n-Am)P]₂⁺ [CoI₄]²⁻ (II) were synthesized by reactions of triphenyl(alkyl)phosphonium iodide with cobalt(II) iodide in acetone. According to the X-ray diffraction data, complexes I and II consist of tetrahedral triphenyl(alkyl)phosphonium cations (for I, P-C is 1.787(4)–1.804(4) ? and CPC is 106.73(18)°–111.4(18)°; for II P-C is 1.786(6)–1.802(6) ? and CPC is 107.6(3)°–111.7(3)°) and [CoI₄]²⁻ anions (Co-I 2.5923(6)–2.6189(6) ?, ICoI 101.86(2)°–113.25(2)° for I; Co-I 2.5899(9)–2.6171(9) 107.01(3)°–110.47(3)° for II).     

Synthesis, characterization, and crystal structural study of the iron(II) 4,4′-bithiazole complex [Fe(C6H4N2S2)3]2+(NO3?)2

Abstract  

The complex [Fe(C₆H₄N₂S₂)₃]²⁺(NO₃⁻)₂ was prepared from the reaction of 4,4′-bithiazole with Fe(NO₃)₃·9H₂O in methanol. It was characterized by IR, UV-Vis, luminescence, ¹H NMR and ¹³C NMR spectroscopy, and X ray crystallography. The structure was solved in the orthorhombic space group P2₁2₁2₁ with a = 12.1500(5), b = 12.8434(6), c = 16.2222(7) ?, V = 2531.43(19) ?³, Z = 4, and with wR ₂  = 0.0897.     

Synthesis and structure of the platinum complexes [Bu4N]+[PtBr5(DMSO)]?, [Ph4P]+[PtBr5(DMSO)]?, and [Ph3(n-Am)P]+[PtBr5(DMSO)]?

The complexes [Bu₄N]₂⁺[PtBr₆]²⁻ (I), [Ph₄P]₂⁺[PtBr₆]²⁻ (II), and [Ph₃(n-Am)P]₂⁺ (III) are synthesized by the reactions of tetrabutylammonium bromide, tetraphenylphosphonium bromide, and triphenyl(n-amyl)-tetraphenylphosphonium bromide, respectively, with potassium hexabromoplatinate (mole ratio 2: 1). After recrystallization from dimethyl sulfoxide, complexes I, II, and III transform into [Bu₄N]⁺[PtBr₅(DMSO)]⁻ (IV), [Ph₄P]⁺[PtBr₅(DMSO)]⁻ (V), and [Ph₃(n-Am)P]⁺[PtBr₅(DMSO)]⁻ (VI). According to the X-ray diffraction data, the cations of complexes IV–VI have a slightly distorted tetrahedral structure. The N-C and P-C bond lengths are 1.492(7)–1.533(6) and 1.782(10)–1.805(10) ?, respectively. The platinum atoms in the mononuclear anions are hexacoordinated. The dimethyl sulfoxide ligands are coordinated with the Pt atom through the sulfur atom (Pt-S 2.3280(18)–2.3389(11) ?). The Pt-Br bond lengths are 2.4330(6)–2.4724(6) ?.     

Synthesis, crystal and electronic structure, and theoretical investigations of charge-transfer, optical, and bonding properties of a [VF6]3? anion compound

Abstract  

A green-colored V(III) compound, imidazolium hexafluorovanadium(III), [C₃H₅N₂)]₃[VF₆], has been prepared and characterized. The geometric and electronic structure, together with charge-transfer, optical, and bonding properties, were thoroughly investigated by X-ray crystallography, density functional theory (DFT), and time-dependent density functional theory (TDDFT) calculations. The low-energy charge-transfer bands responsible for its green color may be theoretically assigned to a F(2p) → V(4p) ligand-to-metal charge-transfer transition. The ligand-field charge-transfer bands (d → d bands) occur at a lower energy region; they are too weak and will be obscured by the quite intense ligand-to-metal bands in the optical spectrum. Partial density of states analysis clearly shows that the nature of metal–ligand interactions in [VF₆]³⁻ is mainly ionic.     

Bismuth compounds [Ph3BuP]+I?, [Ph3BuP] 2+ [Bi2I8 · 2Me2C=O]2?, and [Ph3BuP] 2+ [Bi2I8 · 2Me2S=O]2?: Syntheses and crystal structures

The complexes [Ph₃BuP]₂⁺[Bi₂I₈ · 2Me₂C=O]²⁻ (II) and [Ph₃BuP]₂⁺[Bi₂I₈ · 2Me₂S=O]²⁻ (III) are synthesized by the reactions of triphenyl(n-butyl)phosphonium iodide (I) with bismuth iodide in acetone and dimethyl sulfoxide. In the cations of complexes I–III, the P atoms have a distorted tetrahedral coordination (CPC angles 106.3(2)°–112.0(3)°). The butyl group in cation I is disordered over two positions. In the binuclear centrosymmetric anions of structures II and III, the octahedrally coordinated bismuth atoms are linked in pairs by two bridging (br) iodine atoms (Bi-I_br 3.1508(7) and 3.2824(8) ? in compound II, 3.1961(3) and 3.3108(3) ? in complex III), which are coplanar to four terminal (t) iodine atoms (Bi-I_t 2.9260(7) and 2.9953(6) ? in complex II, 2.9206(3) and 2.9786(3) ? in complex III). The two remaining positions at the bismuth atom are occupied by the iodine atom (Bi-I_t 2.8531(7) ? in complex II, 2.8984(3) ? in complex III) and O atom of the organic molecule (Bi-O 2.747(6) ? in complex II, 2.507(3) ? in complex III). Original Russian Text ? V.V. Sharutin, I.V. Egorova, N.N. Klepikov, E.A. Boyarkina, O.K. Sharutina, 2009, published in Koordinatsionnaya Khimiya, 2009, Vol. 35, No. 3, pp. 188–192.     

Double complex salts with [Ru(NH3)5Cl]2+ cation and [OsCl6]2? anion: Synthesis and properties. Crystal structure of [Ru(NH3)5Cl]2[OsCl6]Cl2

Double complex salts [Ru(NH₃)₅Cl][OsCl₆] and [Ru(NH₃)₅Cl]₂[OsCl₆]Cl₂ were prepared and characterized. An X-ray diffraction study showed that [Ru(NH₃)₅Cl][OsCl₆] is isostructural to the previously synthesized [Rh(NH₃)₅Cl][OsCl₆]. The structure of [Ru(NH₃)₅Cl]₂[OsCl₆]Cl₂ was solved by X-ray diffraction (a = 11.1849(8) ?, b = 7.9528(6) ?, c = 13.4122(9) ?; β = 99.765(2)°; V= 1175.75 ?³; space group C2/m; Z = 2). Thermolysis of the compounds under hydrogen and helium was studied. According to X-ray diffraction, nanosized metallic powders of the corresponding alloys are formed as the final products of thermolysis. The compositions of the obtained solid solutions are consistent with the phase diagram of the Ru-Os system.     

Synthesis and crystal structure of highly soluble ansa-titano- and zirconocene dichloride complexes [Me2Si(η-C5H2(SiMe3)2]2MCl2 (M=Ti, Zr)

The synthesis and X-ray characterization of ansa-metallocene dichloride titanium and zirconium complexes of the type [Me₂Si(η⁵-C₅H₂(SiMe₃)₂)₂]MCl₂ (M=Zr (1), Ti (2)) are reported. The complexes have been tested for ethylene polymerization.     

Synthesis,structure and catalase activity of the [TPA2Mn2(μ-Cl)2] complex

The dinuclear Mn complex (Et₃NH)₂[TPA₂Mn₂(μ-Cl)₂](ClO₄)₄ (I) was synthesized and characterized. Complex I was obtained from the reaction between MnCl₂ and [H₃TPA](ClO₄)₃ in MeOH. Structural analysis of I showed the two Mn(II) atoms are bridged by two chloride ligands, forming a bis(μ-chloro)dimanganese core. The [Mn₂(μ-Cl)₂]²⁺ core, with a Mn–Mn distance of 3.521(2) Å, is similar to the active site found in chloride-inhibited Mn catalase. EPR and temperature-dependent magnetic susceptibility measurements of complex I showed an antiferromagnetic interaction between the two S = 5/2 Mn centers with an exchange parameter J = −8.8 cm⁻¹. Catalytic activity of H₂O₂ dismutation was measured for complex I and compared with other related complexes. Kinetic parameters of H₂O₂ dismutation were obtained and a possible catalytic mechanism of complex I, related to chloride-inhibited Mn catalase, was suggested.     

Synthesis and structures of nine-coordinate K[SmIII (Edta)(H2O)3] · 2H2O and Ten-Coordinate K2[SmIII(Pdta)(H2O)2]2 · 4.5H2O complexes

The title complexes, K[Sm^III(Edta)(H₂O)₃] · 2H₂O(I)(H₄Edta = ethylenediamine-N,N,N′,N′-tetraacetic acid) and K₂[Sm^III(Pdta)(H₂O)₂]₂ · 4.5H₂O (II) (H₄Pdta = propylenediamine-N,N,N′,N′-tetraacetic acid), were prepared and their compositions and structures were determined by elemental analyses and single-crystal X-ray diffraction techniques, respectively. Complex I has a mononuclear structure, and the Sm³⁺ ion is nine-coordinated by an Edta ligand and three water molecules, yielding a pseudo-monocapped square antiprismatic conformation, and the complex crystallizes in the orthorhombic crystal system with space group Fdd2. The crystal data are as follows: a = 19.84(5), b = 35.58(9), c = 12.15(3) ?, V = 8580(38) ?³, Z = 16, ρ _c = 1.925 g/cm³, μ = 3.010 mm⁻¹, F(000) = 4976, R = 0.0252, and wR = 0.0560 for 3510 observed reflections with I ≥ 2σ(I). Complex II has a binuclear structure and the Sm³⁺ ion is ten-coordinated by a Pdta ligand, two oxygen atoms from a carboxylic group of adjacent Pdta ligand and two water molecules, yielding a distorted bicapped square antiprismatic prism. The complex crystallizes in the triclinic crystal system with space group P $ \bar 1 $ \bar 1 . The crystal data are as follows: a = 8.9523(15), b = 10.7106(15), c = 11.6900(19) ?, α = 80.613(5)°, β = 80.397(5)°, γ = 76.530(4)°, V = 1065.7(3) ?³, Z = 1, ρc = 1.970 g/cm³, μ = 2.532 mm⁻¹, F(000) = 1620, R = 0.0332 and wR = 0.0924 for 5390 observed reflections with I ≥ 2σ(I).     

Synthesis and structure of bismuth complex [n-Bu4N] 2+ [Bi2I8 · 2 Me2S=O]2?

Bismuth complex [Bu₄N]₂⁺[Bi₂I₈ · 2Me₂S=O]²⁻(I) was synthesized by reacting tetrabutylammonium iodide with bismuth iodide. In the cations, an N atom has a distorted tetrahedral coordination (CNC angles change in the range from 107.9(5)° to 111.9(5)°). In the centrosymmetric binuclear anion, octahedral bismuth atoms are bound to each other through the bridging (br) iodine atoms (Bi-I_br, 3.2779(7) ? and 3.3156(9) ?), which are coplanar with four terminal (t) iodine atoms (Bi-I_t, 2.9392(7) ? and 2.9534(8) ?). Two remaining positions near the bismuth atom are occupied by an iodine atom (Bi-I, 3.0079(8) dimethyl sulfoxide (DMSO) molecule (Bi-O, 2.456(5) ?).     

trans-dinitro- and trans-dinitratoruthenium complexes [RuNO(NH3)2(NO2)2(OH)] and [RuNO(NH3)2(H2O)(NO3)2]NO3·H2O

Methods for the synthesis of trans-diammino complexes [RuNO(NH₃)₂(NO₂)₂(OH)] (I) and [RuNO(NH₃)₂(H₂O)(NO₃)₂](NO₃)·H₂O (II) are suggested. The compounds were studied by IR spectroscopy and X-ray phase and X-ray structural analyses. Crystal data: space group P-1; a = 6.2328(2) ?, b = 11.0488(3) ?, c = 11.0981(4) ?, α = 71.942(1)°, β = 83.291(1)°, γ = 86.877(1)° (I); space group P2₁; a = 6.6290(2) ?, b = 13.4389(5) ?, c = 7.0180(2) ?, β 114.281(1)° (II). Complex II readily lost some part of crystal water on storage in open air. Original Russian Text Copyright ? 2009 by M. A. Il’in, E. V. Kabin, V. A. Emel’yanov, I. A. Baidina, and V. A. Vorob’yov __________ Translated from Zhurnal Strukturnoi Khimii, Vol. 50, No. 2, pp. 341–348, March–April, 2009.     

微量热法研究 [Cu(phen)2]2+、[Cu(bpy)2]2+与DNA的作用

用微量热法对菲咯啉合铜([Cu(phen)     

Hydrothermal synthesis and crystal structure of [Zn(pytpy)2][NO3]2·2H2O

The title compound, [Zn(pytpy)₂][NO₃]₂·2H₂O (pytpy = 4′-(4-pyridyl)-2,2′: 6′,2″-terpyridine), has been synthesized by the reaction of Zn(NO₃)₂·6H₂O with pytpy, and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to tetragonal space group P4₃ with a = 0.90873(8) nm, b = 0.90873(8) nm, c = 4.4741(6) nm, V = 3.6946(7) nm³, Z = 4, D _c = 1.521 g/cm⁻³, μ = 0.736 mm⁻¹, F(000) = 1744, R = 0.0871, wR = 0.1302 for 5553 observed reflections with I > 2σ(I). X-ray analysis has revealed that the Zn^II ion is surrounded by six N atoms from two pytpy ligands leading to a distorted octahedral geometry. In the crystal structure there are numerous strong intermolecular and intramolecular H-bonds and π-π interactions.     

活性炭电极的改性及对Co2+,Mn2+和Ni2+的电吸附性能

以商用活性炭(AC)为原料,分别采用磷酸和氢氧化钠改性的方法制备了两种不同的改性活性炭电极材料.采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、 Brunauer-Emmett-Teller(BET)测试、傅里叶变换红外光谱(FTIR)和X射线光电子能谱(XPS)等手段以及电化学分析方法,对改性前后活性炭材料的表面性质和电化学性能进行了探究.结果表明, H3PO4改性使活性炭的孔隙分布更加密集, NaOH改性使活性炭表面的孔隙结构更加清晰均匀; H₃PO₄和NaOH改性均使活性炭的比表面积增加.循环伏安测试结果表明,改性前后活性炭电极在低扫描速率下均具备良好的双电层特性,并且两种改性处理均能提高活性炭电极的比电容;当扫描速率为5 mV/s时,未改性、 H₃PO₄以及NaOH改性活性炭电极的比电容分别为36.51, 77.25和85.19 F/g.电吸附实验结果证明,两种改性活性炭电极对Co²⁺, Mn²⁺和Ni²⁺均有较好的去...     

Synthesis and reactions of cycloheptadienyl and cyclooctadienyl tungsten complexes: X-ray crystal structure of [W(CO)2(PPh3)2(η-C7H9)][BF4]

Protonation of the cycloheptatriene complex [W(CO)₃(η⁶-C₇H₈)] with H[BF₄] · Et₂O in CH₂Cl₂ affords the cycloheptadienyl system [W(CO)₃(η⁵-C₇H₉)][BF₄] (1). Complex 1 reacts with NaI to yield [WI(CO)₃(η⁵-C₇H₉)], which is a precursor to [W(CO)₂(NCMe)₃(η³-C₇H₉)][BF₄], albeit in very low yield. The dicarbonyl derivatives [W(CO)₂L₂(η⁵-C₇H₉)]⁺ (L₂=2PPh₃, 4, or dppm, 5) were obtained, respectively, by H[BF₄] · Et₂O protonation of [W(CO)₂(PPh₃)(η⁶-C₇H₈)] in the presence of PPh₃ and reaction of 1 with dppm. The X-ray crystal structure of 4 (as a 1/2 CH₂Cl₂ solvate) reveals that the two PPh₃ ligands are mutually trans and are located beneath the central dienyl carbon and the centre of the edge bridge. The first examples of cyclooctadienyl tungsten complexes [WBr(CO)₂(NCMe)₂(1-3-η:5,6-C₈H₁₁)] (6) and [WBr(CO)₂(NCMe)₂(1-3-η:4,5-C₈H₁₁)] (7) were synthesised by reaction of [W(CO)₃(NCR)₃] (R=Me or Prⁿ) with 3-Br-1,5-cod/6-Br-1,4-cod or 5-Br-1,3-cod/3-Br-1,4-cod (cod=cyclooctadiene), respectively. Complexes 6 and 7 are precursors to the pentahapto-bonded cyclooctadienyl tungsten species [W(CO)₂(dppm)(1-3:5,6-η-C₈H₁₁)][BF₄] and [W(CO)₂(dppe)(1-5-η-C₈H₁₁)][BF₄] · CH₂Cl₂.     

The orthopalladation dinuclear [Pd(L1)(μ-OAc)]2, [Pd(L2)(μ-OAc)]2 and mononuclear [Pd(L3)2] complexes with [N, C, O] or [N, O] containing ligands: Synthesis, spectral characterization, electrochemistry and catalytic properties

Treatment of the salicylaldimine ligands (L₁H, L₂H, L₃H, L₄H and L₅H) with palladium(II) acetate in absolute ethanol gave the orthopalladation dinuclear [Pd(L₁)(μ-OAc)]₂, [Pd(L₂)(μ-OAc)]₂ and mononuclear [Pd(L₃)₂] with the tetradentate ligands [N, C, O] or [N, O] moiety. The ligands L₁H and L₂H are coordinated through the imine nitrogen and aromatic ortho carbon atoms, whereas the ligand L₃H coordinated through the imine nitrogen and phenolic oxygens atoms. The Pd(II) complexes have a square-planar structure and were found to be effective catalysts for the hydrogenation of both nitrobenzene and cyclohexene. These metal complexes were also tested as catalysts in Suzuki-Miyaura coupling of aryl bromide in the presence of K₂CO₃. The catalytic studies showed that the introduction of different groups on the salicyl ring of the molecules effected the catalytic activity towards hydrogenation of nitrobenzene and cyclohexene in DMF at 25 and 45 °C. The Pd(II) complexes easily prepared from cheap materials could be used as versatile and efficient catalysts for different C-C coupling reactions (Suzuki-Miyaura reactions). The structure of ligands and their complexes was characterized by UV-Vis, FT-IR, ¹H and ¹³C NMR, elemental analysis, molar conductivity, as well as by electrochemical techniques.