In the title complex, [Pd(C(12)H(8)FN(4)O(2))(2)(C(5)H(5)N)(2)] or trans-[Pd(FC(6)H(4)N=N-NC(6)H(4)NO(2))(C(5)H(5)N)(2)], the Pd atom lies on a centre of inversion in space group P-1. The coordination geometry about the Pd(2+) ion is square planar, with two deprotonated 3-(2-fluorophenyl)-1-(4-nitrophenyl)triazenide ions, FC(6)H(4)N=N-NC(6)H(4)NO(2)(-), acting as monodentate ligands (two-electron donors), while two neutral pyridine molecules complete the metal coordination sphere. The whole triazenide ligand is not planar, with the largest interplanar angle being 16.8 (5) degrees between the phenyl ring of the 2-fluorophenyl group and the plane defined by the N=N-N moiety. The Pd-N(triazenide) and Pd-N(pyridine) distances are 2.021 (3) and 2.039 (3) A, respectively.
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http://dx.doi.org/10.1107/s0108270102004602 | DOI Listing |
IUCrdata
December 2024
The title compound, [Fe(CHNO)(CHN)], was synthesized solvothermally. The complex exhibits a distorted octa-hedral coordination geometry. The Fe ion is located on an inversion centre.
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January 2024
Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, 100125, M. Ulugbek Str 83, Tashkent, Uzbekistan.
The manganese title complex, [Mn(CHNO)(CHNO)(HO)]·2HO, is one of the first 4-amino 3-nitro-benzoic acid (4 A3NBA) monoligand metal complexes to be synthesized. It crystallizes in the centrosymmetric monoclinic space group 2/ with the complex mol-ecules located on inversion centers. Four 4 A3NBA ligand mol-ecules are monodentately coordinated by the Mn ion through the carb-oxy-lic oxygen atoms while the other two positions of the inner coordination sphere are occupied by water mol-ecules, giving rise to a distorted octa-hedron, and two water mol-ecules are in the outer coordination sphere.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
December 2023
Departamento de Química, Universidade Federal de Sergipe, Av. Marcelo Deda Chagas s/n, Campus Universitário, 49107-230 São Cristóvão-SE, Brazil.
The reaction between the (,)-fixolide 4-methyl-thio-semicarbazone and Pd chloride yielded the title compound, [Pd(CHNS)]·CHO {common name: -bis-[(,)-fixolide 4-methyl-thio-semicarbazonato-κ ]palladium(II) ethanol monosolvate}. The asymmetric unit of the title compound consists of one bis-thio-semicarbazonato Pd complex and one ethanol solvent mol-ecule. The thio-semicarbazononato ligands act as metal chelators with a configuration in a distorted square-planar geometry.
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November 2023
Department of Chemical Sciences, University of Johannesburg, 2006, South Africa.
The title compound, [RuCl(CHP)] or [RuCl(dppm)] (dppm = bis-(di-phenyl-phosphan-yl)methane, CHP) crystallizes as two half-mol-ecules (completed by inversion symmetry) in space group ( = 2), with the Ru atoms occupying inversion centers at 0,0,0 and 1/2, 1/2, 1/2, respectively. The bidentate phosphane ligands occupy equatorial positions while the chlorido ligands complete the distorted octa-hedral coordination spheres at axial positions. The bite angles of the phosphane chelates are similar for the two mol-ecules [(P-Ru-P) = 71.
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November 2023
Departamento de Química, Universidade Federal de Sergipe, Av. Marcelo Deda Chagas s/n, Campus Universitário, 49107-230 São Cristóvão-SE, Brazil.
The reaction of (2)--phenyl-2-[(2)-3-phenyl-2-propen-1-yl-idene]hydra-zine-carbo-thio-amide (common name: cinnamaldehyde-4-phenyl-thio-semi-carbazone) deprotonated with NaOH in ethanol with an ethano-lic suspension of Pd chloride in a 2:1 molar ratio yielded the title compound, [Pd(CHNS)]. The anionic ligands act as metal chelators, κ -donors, forming five-membered rings with a -configuration. The Pd ion is fourfold coordinated in a slightly distorted square-planar geometry.
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