1,721,046 research outputs found
Synthesis, characterization and reactivity of trans-[Pd(COOCH3)(H2O)(PPh3)2](TsO) [TsO =p-toluenesulfonate]: its role in the catalytic hydroesterification of olefins
No full textSynthesis, characterization and X-ray structure of trans-[Pd(COOCH3)(H2O)(PPh3)2](TsO), a possible intermediate in the catalytic hydroesterification of olefins (TsO=p-toluenesulfonate)
Full text linkSynthesis and characterization of Zr(IV) and Y(III) complexes with monocyclopentadienyl ligands containing an additional site tethered by a coordinating 2,6-pyridine bridge. X-ray crystal structures of the zirconium complexes
No full textSynthesis, characterization and crystal structure of [Pt(Me)(dppe){eta(1)-CH(PPh3)(COOEt)}]BF4. An example of overcrowded molecule and correlated properties
No full textThe complex [Pt(Me)(dppe){eta1-CH(PPh3)(COOEt)}]BF4 has been synthesized and characterized spectroscopically and structurally. It crystallizes in the space group P21/n, with lattice constants a=14.525(3) Å , b=14.931(3) Å , c=21.921(4) Å , beta=103.47(3)°. The X-ray analysis revealed a particularly overcrowded molecular structure containing high stereochemical constraints. The structural features account for specific chemical and physical properties of this compound, thus representing an interesting example of applied crystallography
Reactions of isocyanide complexes of Palladium(II) and Platinum(II) with azetidine: synthesis of acyclic diaminocarbene derivatives and X-Ray structure of [PdCl(PMe2Ph)(CH2CH2CH2NH){C(NCH2CH2CH2)NHC6H4OMe-p}]Cl*CH2Cl2
No full textAzetidine reacts in tetrahydrofuran (thf) at room temperature or below with the co-ordinated RNC ligand in each of the neutral cis-[MCl2(PPh3)(CNR)][M = Pd or Pt; R = C6H4OMe-p or But) and cationic trans-[MCl(PPh3)2(CNC6H4OMe-p)]BF4(M = Pd or Pt) complexes to form the corresponding derivatives containing the acyclic diaminocarbene moiety M–C([graphic omitted]H2)NHR. Azetidine reacts also with the bis(isocyanide) complexes cis-[PdCl2(CNR)2](R = But or C6H4OMe-p) converting one (R = But) or two (R = C6H4OMe-p) isocyanide ligands into acyclic carbenes
Dimethyl(dimethylaminoethylene)amonium 2,6-dinitro-4-trifluoromethyl-benzenesulfonate
No full textthe paper report details of the preparation and the structural analysis of the title compound
Structural and spectroscopic characterization of the macrocyclic complex: [Tb(CrO4)(H2O)(C22H26N6)] ·0.5(Cr2O7)·(H2O)
No full textThe title complex was obtained by anion metathesis from [Tb(CH3COO)2(C22H26N6)] (CH3COO). 4H(2)O and K2CrO4 in aqueous solution. The compound crystallizes in the triclinic space group P ) over bar 1 with a = 8.384(2), b = 10.425(2) c = 15.752(2)Angstrom, alpha = 98.82(2), beta = 93.52(2), gamma = 97.22(2)degrees, and Z = 2. The structure is ionic and consists of a (+1) complex cation balanced in a 2:1 ratio by a disordered dichromate ion. The 9-coordinate Tb(III) is linked to the six nitrogen atoms of the macrocyclic ligand L = C22H26N6, as well as to a water molecule and a bidentate chelating chromate situated on opposite sides of the macrocycle. The infrared spectrum shows, in addition to the pattern of the macrocyclic ligand, the absorptions arising from the stretching modes of the bidentate chelating CrO42- ligand and of the Cr2O72- counterion
Cyclic dialkylindium amides: new structural information and ultra-purification using inorganic and inorgano–organic layered materials
No full textChloro and acetato complexes of platinum(II) with functionalized thioethers
No full textThe chloro complexes [PtCl2(RSR')(2)] (1-10) (RSR' = MeSCH2C(O)OMe, 1; MeSCH2C(O)OEt, 2; MeSCH2C(O)Omenthyl(-), 3: MeSCH2CH2C(O)OMe, 4; S(CH2)(3)CHC(O)OEt, 5; EtSCH2C(O)Me; 6; MeSCH C(O)Me, 7; MeSPh, 8; MeS-o-C6H4Me, 9; and MeS-o-C6H4Et, 10) are obtained in high yield (63-90%) by reaction of [PtCl2(PhCN)(2)] with the proper thioether in 1/2 molar ratio. in anhydrous chloroform. at reflux under argon for ca. 10 h. The X-ray crystal structure of [PtCl2(MeS-o-C6H4Me)(2)] (9) shows an almost regular trans square planar geometry (triclinic, space group P (1) over bar, a 6.806(1), b 7.789(2), c 10.085(3) Angstrom, alpha 101.80(2)degrees, beta 69.55(2)degrees, gamma 115.27(2)degrees, R(F-o) 0.023, R-w(F-o(2)) 0.065). The dichloro complexes react with silver acetate in a complex manner, which depends on the nature of the thioether, and only with RSR' = MeSPh the simple diacetato complex [Pt(OAc)(2)(RSR')(2)] is obtained as the major product
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