| | 3 | Author
| Emmanuel Chukwuemeka Okafor | Requires cookie* | | | Title
| The Metal Complexes of Heterocyclic /?-Diketones and their Derivatives, Part VIII Synthesis, Structure, Proton NMR and Infrared Spectral Studies of the Complexes-Phenyl-3-methyl-4-trifluoroacetyl-pyrazolone-5 (HPMTFP)  | | | | Abstract
| of Al(in), Fe(ffl), Co(ffl), Rh(m), In(ffl), and Zr(IV) with l New complexes of Al(III), Fe(III), Co(III), Rh(III), In(III) and Zr(IV) with 1-phenyl-3-methyl-4-trifluoroacetyl-pyrazolone-5, (HPMTFP), have been synthesized and charac-terized by means of elemental analyses, conductivity and magnetic moment measurements, proton NMR and infrared spectroscopy. It is concluded that the ligand, HPMTFP, reacts as a bidentate enol forming neutral metal chelates. The PMR spectra of chelates suffi-ciently soluble in deuterated NMR solvents were recorded and studied. The IR spectra are measured between 4000-200 cm -1 and assignments are proposed for the observed fre-quencies. The M-0 stretching frequency follows the order: AI > Rh > Fe — Co = Zr > In. | | | |
Reference
| Z. Naturforsch. 36b, 213—217 (1981); received September 17 1980 | | | |
Published
| 1981 | | | |
Keywords
| Metal Complexes, PMR Spectra, IR Spectra | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0213.pdf | | | | Identifier
| ZNB-1981-36b-0213 | | | | Volume
| 36 | |
| 4 | Author
| Karl Wieghardt, Ursula Bossek, Martina Guttmann, Johannes Weiss | Requires cookie* | | | Title
| Metallkomplexe der Liganden | | | | Abstract
| 1.4.7-Triazacyclononan-N.N .N -tris-2-ethansulfonat (TES) und 1.4.7-Triazacyclononan-N.N' .N'' -trisethylacetat (TEA). Die Kristallstrukturen von Na[Ni(TES)(H20)] • 5 H20 und Na[Cu(TES)] • 3 H20 Transition Metal Complexes Containing the Ligands 1,4,7-Triazacyclononane-N,N',N"-tris-2-ethanesulfonate (TES) and l,4,7-Triazacyclononane-N,N , ,N"-tris-ethylacetate (TEA). The Crystal Structures of Na[Ni(TES) (H20)] • 5H20 and of Na[Cu(TES)] • 3H20 The syntheses of two new, potentially hexadentate ligands with an N3O3 donor set is reported: l,4,7-triazacyclononane-N,N , ,N"-tris-2-ethanesulfonate (TES) and 1,4,7-tria-zacyclononane-N,N',N"-tris-ethylacetate (TEA). Complexes of the divalent transition metals Co(II), Ni(II), Cu(II) containing these ligands have been prepared. The kinetics of the reactions of [Co n (TEA)H20] 2 + and [Co II (TCTA)]-(TCTA= 1,4,7-triazacyclononane-N^^N'^tris-acetate) with [Fe m (CN)6] 3 ~, respectively, have been measured. A stable binuclear [Co(TEA)(CN)6Fe]~ species has been characterized in solution whereas the reaction of [Co(TCTA)]-with [Fe(CN)6] 3 -yields [Co in TCTA] and [Fe(CN)6] 4 -via an outer-sphere electron transfer reaction (k = 5,9 x 10 3 1 mol -1 sec -1 ; 25 °C, I = 0,26 M). Na[Ni(TES)H20] • 5H20 crystallizes in the triclinic space group P I (C^-No 2) with cell constants a = 806,7(4), b = 1468,4(8), c = 2317,9(8) pm, a = 72,36(4)°, ß = 83,48 (3)°, y = 81,99(4)°, and Z = 4. The nickel(II) center is in a distorted octahedral environment of a pentadentate TES ligand (N3Ü2)_and a coordinated H20. Na[Cu(TES)] 3H20 crystal-lizes in the triclinic space group P I (C^-No 2) w T ith cell constants a = 747,3(3), b — 1082,6(5), c = 1459,3(9) pm, a = 81,13(5)°, ß = 84,75(4)°, y = 79,39(3)°, and Z = 2. The copper(II) center is in a distorted quadratic pyramidal environment of a pentadentate TES ligand. Each of the complex anions contains one uncomplexed CH2-CH2-SC>3 _ group. | | | |
Reference
| (Z. Naturforsch. 38b, 81—89 [1983]; eingegangen am 27. September 1982) | | | |
Published
| 1983 | | | |
Keywords
| Crystal Structure, O-Coordinated R-S03-group, Metal Complexes | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0081.pdf | | | | Identifier
| ZNB-1983-38b-0081 | | | | Volume
| 38 | |
| 5 | Author
| H. W. Roesky, D. Amirzadeh-Asl | Requires cookie* | | | Title
| Preparation and Reactions of Bicyclic Compounds with a Phosphorus-Phosphorus-Bond | | | | Abstract
| The reaction of N,N'-dimethyl-N,N'-bis(trimethylsilyl)urea with PCI3 leads to the bicyclic compound OP2[MeNCONMe]2 (3) with a direct phosphorus-phosphorus bond and to the bicycle MeNP2[MeNCONMe]2 (4). 3 reacts with tetrachloro-o-benzoquinone (TOB) to yield the spirocycle CeCl^tMeNCONMe^PaO (5) with a A 4 P-A 5 P-bond. The Lewis acids SbCls and SnCLj react with 3 to give the adducts 6 and 7. The reactions of 3 with the metal carbonyls Fe2(CO)9, Cr(CO)5THF and Cr(CO)4C7Hx lead to the metal complexes 8-10. The compounds were characterized on the basis of 31 P NMR and mass spectra. Kürzlich haben wir gezeigt, daß Reaktionen von disilylierten Harnstoffen mit Dichlorphosphanen, | | | |
Reference
| Z. Naturforsch. 38b, 460—464 (1983); eingegangen am 14. Dezember 1982/27. Januar 1983 | | | |
Published
| 1983 | | | |
Keywords
| 31 P NMR, Metal Complexes, Oxidative Addition | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0460.pdf | | | | Identifier
| ZNB-1983-38b-0460 | | | | Volume
| 38 | |
| 7 | Author
| H., P. F. | Requires cookie* | | | Title
| Polarographische Untersuchungen an Metallkomplexen des Formylferrocenthiosemicarbazons Polarographie Investigations on Metal Complexes of Formylferrocenethiosemicarbazone | | | | Abstract
| The complexes ML2 (M = Co(II), Ni(II), Cu(II), Zn(II) and Cd(II), LH — formylferro-cenethiosemicarbazone) and Cu2L2 are described. Their IR-and UV-spectra and their polarographic behaviour are reported. | | | |
Reference
| (Z. Naturforsch. 28b, 383—388 [1973]; eingegangen am S. April 1973) | | | |
Published
| 1973 | | | |
Keywords
| Formylferrocenethiosemicarbazone, metal complexes, IR-spectra, UV-spectra, polaro-graphic behaviour | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/28/ZNB-1973-28b-0383.pdf | | | | Identifier
| ZNB-1973-28b-0383 | | | | Volume
| 28 | |
| 8 | Author
| Klinikum Großhadern, München | Requires cookie* | | | Title
| Untersuchungen an biologisch wirksamen Ligandensystemen, X II1 Metallkomplexe des Maleinsäurehydrazids und ihre physiologische Wirkung auf Yoshida-Sarkom-Asciteszellen | | | | Abstract
| In vestigation s o f B iologically A ctiv e L igands, X I I 1 M etal C om plexes o f M aleic A cid H ydrazide and their P hysiologic A ction on Y oshida-Sarcom a A scites Cells H e i n z P. F r i t z u n d B e r n h a r d L i p p e r t K u r t P o s s i n g e r u n d R e i n e r H a r t e n s t e i n The preparation and characterization of metal complexes of maleic acid hydrazide is reported, including Ca, Mn, Fe, Co, Ni, Cu, Zn and Pt-complexes, as well as the action of maleic acid hydrazide and one Pt-complex on Yoshida-ascites-sarcoma. | | | |
Reference
| (Z. Naturforsch. 32b, 393—400 [1977]; eingegangen am 20. Januar 1977) | | | |
Published
| 1977 | | | |
Keywords
| Maleic Acid Hydrazide, Physiological Activity, Metal Complexes, Yoshida-Sarcoma Ascites Cells | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/32/ZNB-1977-32b-0393.pdf | | | | Identifier
| ZNB-1977-32b-0393 | | | | Volume
| 32 | |
| 9 | Author
| Thomas Krück, Werner Thielmann, Christian Sauer | Requires cookie* | | | Title
| Metallkomplexe mit anionischen Liganden von Elementen der 4. Hauptgruppe, XI [1] Homogene Trichlorstannidometallat(O)-Komplexe der 6. und 8. Nebengruppe Metal Complexes with Anionic Ligands of Elements of the Main Group IV, XI [1] Homogenous Trichlorostannido Metalate(O) Complexes of the Transition Groups VI and VIII | | | | Abstract
| Various homogeneous metalate(O) complexes are synthesized with [SnCl3] -as a ligand. Complexes of the type [M(SnCl3)6] 6 -are prepared from [M(CO)3(SnCl3)3] 3 -(M = Cr, Mo, W) in nitromethane. [Fe(SnCl3)5] 5_ is formed by UV irradiation of [Fe(CO)4SnCl3]~ in aceto-nitrile. [M(SnCl3)4] 4-(M = Ni, Pd, Pt) anions are synthesized by thermal substitution reactions with Ni(CO)4, Pd(PF3)4, and Pt(PF3)4. All metalate(O) ions are isolated as salts with the [N(C2H5)4] + cation and characterized by IR spectra and 119m Sn-Mössbauer spectra as well as by analysis. | | | |
Reference
| Z. Naturforsch. 33b, 1291—1295 (1978); eingegangen am 12. Juli 1978 | | | |
Published
| 1978 | | | |
Keywords
| Synthesis, FIR Spectra, 119m Sn-Mössbauer Spectra, Metal Complexes, Anionic Ligands | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/33/ZNB-1978-33b-1291.pdf | | | | Identifier
| ZNB-1978-33b-1291 | | | | Volume
| 33 | |
|
