Description
| - Ni(II) mononuclear dithiocarbamate complexes with bidentate P,P ligands of composition [Ni(R(2)dtc)(P,P)]X {R = pentyl (pe), benzyl (bz); dtc = S2CN-; P,P=1,2-bis(diphenylphosphino)ethane (dppe), 1,4-bis(diphenylphosphino)butane (dppb), 1,1'-bis(diphenylphosphino)ferrocene (dppf); X = ClO4, Cl, Br, NCS} and binuclear complexes of composition [Ni-2(mu-dpph)(R(2)dtc)(2)]X-2 with a P,P-bridging ligand {P,P = 1,6-bis(diphenylphosphino)hexane (dpph); X = Cl, Br, NCS} have been synthesized. The complexes have been characterized by elemental and thermal analysis, IR, electronic and P-31{H-1}-NMR spectroscopy, magnetochemical and conductivity measurements. Single crystal X-ray analysis of [Ni(pe(2)dtc)(dppf)]ClO4 confirmed a distorted square planar coordination in the NiS2P2 chromophore. For selected samples, the catalysis of graphite oxidation was studied.
- Ni(II) mononuclear dithiocarbamate complexes with bidentate P,P ligands of composition [Ni(R(2)dtc)(P,P)]X {R = pentyl (pe), benzyl (bz); dtc = S2CN-; P,P=1,2-bis(diphenylphosphino)ethane (dppe), 1,4-bis(diphenylphosphino)butane (dppb), 1,1'-bis(diphenylphosphino)ferrocene (dppf); X = ClO4, Cl, Br, NCS} and binuclear complexes of composition [Ni-2(mu-dpph)(R(2)dtc)(2)]X-2 with a P,P-bridging ligand {P,P = 1,6-bis(diphenylphosphino)hexane (dpph); X = Cl, Br, NCS} have been synthesized. The complexes have been characterized by elemental and thermal analysis, IR, electronic and P-31{H-1}-NMR spectroscopy, magnetochemical and conductivity measurements. Single crystal X-ray analysis of [Ni(pe(2)dtc)(dppf)]ClO4 confirmed a distorted square planar coordination in the NiS2P2 chromophore. For selected samples, the catalysis of graphite oxidation was studied. (en)
- Jednojaderné Ni(II) dithiokarbamátové komplexy s bidentátními P,P ligandy o složení [Ni(R(2)dtc)(P,P)]X {R = pentyl (pe), benzyl (bz); dtc = S2CN-; P,P=1,2-bis(difenylfosfino)ethan (dppe), 1,4-bis(difenylfosfino)butan (dppb), 1,1'-bis(difenylfosfino)ferrocen (dppf); X = ClO4, Cl, Br, NCS} a dvojjaderné komplexy o složení [Ni-2(mi-dpph)(R(2)dtc)(2)]X-2 s P,P-můstkovým ligandem {P,P = 1,6-bis(difenylfosfino)hexan (dpph); X = Cl, Br, NCS} byly připraveny. Komplexy byly charakterizovány pomocí elementární a termické analýzy, IR, elektronové a P-31{H-1}-NMR spektroskopie, magnetochemických a vodivostních měření. Monokrystalová RTG analýza [Ni(pe(2)dtc)(dppf)]ClO4 potvrdila deformované čtvercové uspořádání s chromoforem NiS2P2. U vybraných látek byla studována katalytická aktivita při oxidaci grafitu. (cs)
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