| | 1 | Author
| Udo Engelhardt, Bernd Friedrich, Ingeborg Kirner | Requires cookie* | | | Title
| Komplexe zweifach positiver Übergangsmetallkationen mit Hydrazido-thiophosphorsäure-estern Complexes of Divalent Transition Metals with Hydrazido Thiophosphoric Acid Esters  | | | | Abstract
| Dihydrazido thiophosphoric acid phenyl ester, (NH2NH)2P(= S)-OC6H5 (DHTPPH), forms a 2:1 complex with manganese(II) chloride: [Mn(II)(DHTPPh)2Cl2], soluble in methanol. Solvolysis yields the corresponding methyl ester complex. With water in methanol the dihydrazidothiophosphato complex [Mn(II){(NH2NH)2P(= 0)S}2] is formed. Monohydrazido thiophosphoric acid diphenyl ester NH2NH-P(= S)(OC6H5)2 (MHTPPh) gives various complexes with first row transition metals: [M(II)(MHTPPh)"X2], n = 2, 4; X = halogen. The nickel complex (n = 4; X = Cl) is characterized by elemental analysis and spectroscopic methods. MHTPPh is monodentate through the terminal N atoms of the hydrazido groups. Iron(II) and cadmium complexes have different compositions (n— 2; X = Cl) and therefore different structures, probably with MHTPPh as a bidentate chelate ligand. Einführung | | | |
Reference
| Z. Naturforsch. 36b, 791—791 (1981); eingegangen am 3. April/12. Mai 1981 | | | |
Published
| 1981 | | | |
Keywords
| Cadmium Complexes, Dihydrazido Thiophosphoric Acid Esters, Monohydrazido Thiophosphoric Acid Diphenylester | | | |
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| default:Reihe_B/36/ZNB-1981-36b-0791.pdf | | | | Identifier
| ZNB-1981-36b-0791 | | | | Volume
| 36 | |
| 2 | Author
| Gerhard Thiele, Dietmar Putzas | Requires cookie* | | | Title
| Antiprismatische und dodekaedrische Oktaaquokationen von Calcium und Strontium in den Kristallstrukturen von Tetrahalogenocadmaten und -mercuraten Antiprismatic and Dodecahedral Oktaaquo Cations of Calcium and Strontium in the Crystal Structures of Tetrahalogeno Cadmates and Mercurates | | | | Abstract
| The tetrahalogenometallates CaHgBr 4 -8H 2 0, CaCdI 4 -8H 2 0 and SrCdI 4 -8H 2 0 which have been obtained by crystallization from aqueous solutions form different structures. The orthorhombic compounds CaHgBr 4 -8H^O (Cmca, a — 1720.1(6) pm, b = 1329.2(4) pm. c = 1369.5(7) pm, Z — 8, R -0.041) and SrCdI 4 -8H 2 0 (Pnma, a = 1404.6(2) pm, b = 1841.1(5) pm. c = 1420.6(3) pm, Z = 8, R = 0.037) are built up from dodecahedral [A(H 2 0) 8 ] cations (A = Ca, Sr) and tetrahedral MX 4 anions (M = Hg, Cd) which are cubic closed packed in a CuAu type structure. The tetragonal structure of CaCdI 4 -8H 2 0 (P4/nbm, a = 1268.14(13) pm, c = 536.96(35) pm. Z = 2, R = 0.034) contains antiprismatic [Ca(H 2 0) x ] 2+ cations and tetrahedral Cdl 4 anions, which form together a tetragonal primitive rod package. | | | |
Reference
| Z. Naturforsch. 43b, 1224—1234 (1988); eingegangen am 9. Juni 1988 | | | |
Published
| 1988 | | | |
Keywords
| Crystal Structure, Hydrates, Cadmium Complexes, Mercury Complexes | | | |
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| default:Reihe_B/43/ZNB-1988-43b-1224.pdf | | | | Identifier
| ZNB-1988-43b-1224 | | | | Volume
| 43 | |
| 3 | Author
| Henry Strasdeit | Requires cookie* | | | Title
| Synthesis, Spectroscopic and X-Ray Structural Characterization of |Cd(linpen)l2+, a Model for M etal Complexes of the Chelating Polymer Polyethyleneimine (linpen = Linear Pentaethylenehexamine) | | | | Abstract
| The isolation of 3,6,9,12-tetraazatetradecane-l,14-diam ine (linear isomer o f pentaethylene hexamine, linpen) from a technical polyamine mixture is described. In methanol, linpen acts as a hexadentate ligand tow ards cadmium(II). The solid compounds [Cd(linpen)](BPh4)2 (1), [Cd(linpen)](BPh4)2-2D M SO (2) and [Cd(linpen)](BF4)2 (3) have been isolated and character ized by elemental analysis, spectroscopy and X-ray powder diffraction. The 113Cd N M R reso nance of 1 is at 351 ppm (0.30 M in DM SO -d6, standard: 0.10 M Cd(C104)2 in D 20). 2 and 3 have been structurally characterized by single-crystal X-ray diffraction. 2: C2/c; a = 19.337(1) A, b = 17.937(1)Ä, c = 18.584(1)Ä, ß = 1 1 1.54(1)°; Z = 4, R = 0.034, Rw = 0.033. 3: P2,/h; a = 8.607(1)Ä, b = 14.851(2)Ä, c = 15.703(2)Ä, ß = 91.21(2)°; Z = 4, R = 0.083, R" = 0.072. Both com pounds contain discrete [Cd(linpen)]2+ complexes. The hexamine wraps ar ound the metal ion in a helical manner. This results in a strong distortion of the coordination polyhedron. The mean C d -N bond lengths are 2.38Ä and 2.37Ä for 2 and 3, respectively. Models for M N 6 centers in metal-polyethyleneimine (PEI) complexes are derived from the structure of [Cd(linpen)]2+. F or example, loops at the M N 6 site in molecules of linear PEI are proposed. | | | |
Reference
| Z. Naturforsch. 47b, 829—836 (1992); received December 12 1991 | | | |
Published
| 1992 | | | |
Keywords
| Pentaethylenehexamine, Cadmium Complex, Synthesis, Crystal Structure, Polyethyleneimine | | | |
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| default:Reihe_B/47/ZNB-1992-47b-0829.pdf | | | | Identifier
| ZNB-1992-47b-0829 | | | | Volume
| 47 | |
| 5 | Author
| R. Castro, M.L D Urá, J.A G Arcía-Vázquez, J. Rom, A. Sousa, A. C. Astiñeiras, W. Hiller, J. Strähle | Requires cookie* | | | Title
| Direct Electrochemical Synthesis of Pyrimidine-2-thionato Complexes of Zinc(II) and Cadmium(II): The Crystal Structure of (l,10-Phenanthroline)bis(pyrimidine-2-thionato)cadmium(II) | | | | Abstract
| Zn(pymt)2 and Cd(pymt)2 complexes have been obtained by electrochemical oxidation o f anodic zinc or cadmium in acetonitrile solutions o f pyrimidine-2-thione (Hpymt). W hen 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) was added to the electrochemical cell, the ad-ducts [M (pymt)2(bipy)], or [M(pymt)2(phen)] (M = Zn or Cd) were obtained. Crystals o f [Cd(pymt)2phen] are orthorhombic, with a = 9.882(2), b = 12.491(1), c = 16.513(2)A, space group P 2,2,2, and Z = 4. The cadmium atom has distorted octahedral geometry, and one ni trogen atom o f each pyrimidine-2-thiolato ligand is not coordinated. | | | |
Reference
| Z. Naturforsch. 47b, 1067 (1992); received January 27 1992 | | | |
Published
| 1992 | | | |
Keywords
| X -Ray, Cadmium Complexes, Pyrimidine-2-thione, Zinc Complexes | | | |
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| default:Reihe_B/47/ZNB-1992-47b-1067.pdf | | | | Identifier
| ZNB-1992-47b-1067 | | | | Volume
| 47 | |
| 6 | Author
| Anne-Kathrin Duhme, Henry Strasdeit | Requires cookie* | | | Title
| Ligandenmangelkomplexe des Cadmiums. Synthese und spektroskopische Charakterisierung molekularer (Pentafluorphenyl)cadmium-Thiolate und die Struktur des Cubankomplexes [{Cd(C6F5)(SBur)}4] Ligand-Deficient Complexes of Cadmium. Synthesis and Spectroscopic Characterization o f Molecular Pentafluorophenyl Cadmium Thiolates and the Structure o f the Cubane Complex [{Cd(C6F5)(SBuf)}4] | | | | Abstract
| In toluene, bis(pentafluorophenyl)cadmium(II) and thiols RSH (R = Bu', 2,4,6-Pr'3C6H2, 2,4,6-Bu'3C6H2) react to give soluble pentafluorophenyl cadmium thiolates [(Cd(C6F5)(SR)} J. The compounds [{Cd(C6F 5)(SBu')}4] (1)0 .5 C6H5CH3, [ {Cd(C6F5)(SC6H2Pr'3-2,4,6)} J (2)-ca. 0.25n C6H 5CH3, and [{Cd(C6F5)(SC6H2Bu'3-2,4,6)} J (3) ca. 0.25« C6H5CH3 have been prepared in 65, 59 and 78% yield, respectively. 1-0.5 C6H5CH3 crystallizes in the triclinic space group PI with a = 11,635(1)Ä, b = 11.583(1)Ä, c = 21.480(2)Ä, a = 82.12(1)°, ß = 76.26(1)°, y — 89.35(1)°, and Z = 2. 1 is a cubane-type complex with a {Cd4(/z3-SBur)4}4+ core. Each Cd atom is coordinated by three bridging thiolato ligands and one terminal C6F5 group (C d -S 2.62 A, C d -C 2.15Ä (mean values)). The central C atoms of the Bu'S" ligands of 1 show a remarkable low-field shift o f their 13C N M R resonance (12.3 ppm relative to the value of the free thiol). A characteristic spectral feature of (Cd(C6F5) } + complexes is the large value of the coupling constant 2/ (19F ,13C) o f the ipso-C atom (1, 2: 68 Hz; 3: 67 Hz). The complexes [Cd(C6F5)(SR) + H]+, [Cd(SR)2 + H]+, and [Cd2(SR)3]+ were identified in the Cl mass spectra (/50-butane) of 2 and 3. | | | |
Reference
| (Z. Naturforsch. 49b, 119—127 [1994]; eingegangen am 17. August 1993) | | | |
Published
| 1994 | | | |
Keywords
| Cadmium Complexes, Thiolates, Crystal Structure, NMR Spectra, Mass Spectra | | | |
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| default:Reihe_B/49/ZNB-1994-49b-0119.pdf | | | | Identifier
| ZNB-1994-49b-0119 | | | | Volume
| 49 | |
| 8 | Author
| Z. Naturforsch | Requires cookie* | | | Title
| Heterometallische | | | | Abstract
| Mehrkernkomplexe von Zink und Cadmium mit ds-[C r(O H)2(en)2]+-Liganden H eterom etallic Polynuclear Com plexes of Zinc and Cadm ium with c/s-[C r(O H)2 (en)2]+ Ligands Frank R om inger, U lf Thew alt* A series of polynuclear heterometallic complexes containing chromium and zinc or cadmium were prepared by the reaction of c/s-[CrCl2(en)2]Cl and a zinc or cadmium salt in water and the molecular and crystal structures of 1 to 5 determined by X-ray structure analyses. The products contain chelating or bridging c7s-[Cr(OH)2(en)2]+ groups. For the zinc complexes a tetrahedral coordination is observed, and the [Cr(OH)2(en)2]+ units are found to act as bridges. |[Z nC l2(//-0H)C r(en)2(/u-0H)]C104]" (1) has a chain polymeric structure. [{ZnCl2(y'/-OH)Cr(en)2(//-0 H)} 2]C12 (2) has a cyclic structure. In the case of the cadmium complexes the [Cr(OH)2(en)2]+ units act as chelating ligands. For the three cadmium complexes [Cd3(/./.-Cl)4Cl4{Cr(/^3-OH)( | | | |
Reference
| Z. Naturforsch. 51b, 1716—1724 (1996); eingegangen am 16. Juli 1996 | | | |
Published
| 1996 | | | |
Keywords
| Zinc Complexes, Cadmium Complexes, Chromium Complexes, Hydroxo Bridge, Heterome tallic Compounds | | | |
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| default:Reihe_B/51/ZNB-1996-51b-1716.pdf | | | | Identifier
| ZNB-1996-51b-1716 | | | | Volume
| 51 | |
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