| | 1 | Author
| D. Ieter Sellmann, Thomas Hofmann, Falk Knoch | Requires cookie* | | | Title
| Ni(II)-und Ni(III)-Komplexe mit dem fünfzähnigen Thioether- Thiolat-Amin-Liganden 'NMeS4'2_ ('NMeS4'2_ = Dianion von 2,2'-Bis(2-mercaptophenylthio)diethylmethylamin) Transition Metal Complexes with Sulfur Ligands, CV* Ni(II) and Ni(III) Complexes with the Pentadentate Thioether- Thiolate-Amine-Ligand 'N MeS4'2_ ('N MeS4'2-= Dianion of 2.2'-Bis(2-m ercaptophenylthio)diethylmethylamine)  | | | | Abstract
| Paramagnetic [N i('N MeS4')]2 1 ('N MeS4'2_ = 2.2'-Bis(2-m ercaptophenylthio)diethylm ethyl-a m in e(2 -)) was synthesized from N i(ac)2 and N a2-'N MeS4' and characterized by X-ray structure analysis. In solid state, 1 contains two pseudo-octahedral [N i('N MeS4')] fragments bridged via thiolate donors. In contrast to the parent com plex [N i('N HS4')]2, the thiolate and thioether donors coordinate cis to the Ni center forming m eso [N i('N MeS4')] fragments of Cs symmetry. 1 readily dissociates in solution to give mononuclear [N i('N MeS4')]. Reaction of [N i('N MeS4')]2 1 with PM e3 yielded [N i(PM e3)('N MeS4')] 2, oxidation by io dine gave the Ni(III) complex [N i(I)('N MeS4')] 3. Ubergangsmetallkomplexe mit Schwefel-Liganden, CY* | | | |
Reference
| Z. Naturforsch. 49b, 821 (1994); eingegangen am 15. Februar 1994 | | | |
Published
| 1994 | | | |
Keywords
| Nickel Complexes, Thioether-Thiolate-Amine-Ligands, X-Ray | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/49/ZNB-1994-49b-0821.pdf | | | | Identifier
| ZNB-1994-49b-0821 | | | | Volume
| 49 | |
| 2 | Author
| A.Rnd Müller, Gerald Henkel, Thiolato | Requires cookie* | | | Title
| [Ni2(SC4H9)6]2-> ein neuartiger zweikerniger Nickel-Thiolato-Komplex mit kantenverknüpften NiS4-Tetraedern und [Ni(SC6H4SiMe3)4]2-, ein strukturchemisch verwandtes einkerniges Komplexion [Ni2(SC4H 9)6]2~, a Novel Binuclear Nickel-Thiolat Complex with NiS4 Tetrahedra Sharing Edges and [Ni(SC6H4SiMe3)4]2_, a Structurally Related M ononuclear Complex Ion | | | | Abstract
| Reaction of nickel(II) chloride with sodium or potassium tert-butane thiolate in acetonitrile affords the isotypical compounds [Nb(SrC4H9)6]Na2 • 4 MeCN (1) and [Ni7(SfC4H9)6]KT • 4 MeCN (2), respectively. Crystal data: 1: a = 9.859(3), b = 11.877(3), c = 19.675(5) Ä , ß = 96.11(2)°, space group P 2x/n, Z = 2:2: a = 9.854(2), b = 11.915(3), c = 20.558(5) Ä , ß = 99.62(2)°, space group P 2xln, Z = 2. The structures were refined to R = 0.0599 (1) and 0.0562 (2), respectively. Both compounds contain the complex ion [Ni2(SrC4H 9)6]2_ (3), which is not only the first example of a tetrahedral nickel complex with alkane thiolate ligands, but also the first poly-nuclear nickel complex containing tetrahedral NiS4-units sharing a comm on edge. Reaction of nickel(II) chloride and sodium (2-trim ethylsilyl)thiophenolate in acetonitrile leads to [Ni(SC6H4SiM e3)4]2~ (5) with tetrahedral stereochemistry. The m ononuclear complex ion is isolated aso [Ph4P]2[Ni(SC6H4SiM e3)4]-5M eC N (4) with a = 13.771(2), b = 14.163(2), c = 25.873(4) A , a = 77.44(1), ß = 75.13(1), y = 72.46(1)°, space group P 1 and Z = 2. The final refinement converged to R = 0.0445. | | | |
Reference
| Z. Naturforsch. 50b, 1464—1468 (1995); eingegangen am 29. Dezem ber 1994 | | | |
Published
| 1995 | | | |
Keywords
| Ligands, Nickel Complexes, Synthesis, Crystal Structure, Bioinorganic Chemistry | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/50/ZNB-1995-50b-1464.pdf | | | | Identifier
| ZNB-1995-50b-1464 | | | | Volume
| 50 | |
| 5 | Author
| H. Schumann, B. Neumann, H.-G Stammler | Requires cookie* | | | Title
| Spektroskopische und strukturelle Aspekte der Protonierung von Tetraaza[14]annulen-Dianionen Spectroscopic and Structural Aspects of the Protonation of Tetraaza[14]annulene Dianions | | | | Abstract
| The effects of increasing protonation upon two [ 14]annulene dianions prepared by reaction of LiCH3 with 5,14-dihydro-6,8,15,17-tetram ethyldibenzo[b,i][l,4,8,l l]tetraazacyclotetradecine | | | |
Reference
| Z. Naturforsch. 51b, 1255—1266 (1996); eingegangen am 8. Februar 1996 | | | |
Published
| 1996 | | | |
Keywords
| Nickel Complexes, Macrocyclic Ligands, Protonation, 7r-Conjugation, X-Ray | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/51/ZNB-1996-51b-1255.pdf | | | | Identifier
| ZNB-1996-51b-1255 | | | | Volume
| 51 | |
| 6 | Author
| M. Athias, O. Sengea, G. Elii, V. P. Ono, M. Arevb, Tim Othy, P. Forsythc, KevinM. Smith0 | Requires cookie* | | | Title
| Synthesis, Solution, Molecular and Crystal Structure of Bis[5-(coproporphyrinato-I tetraethylester)nickel(II)]l,2-ethane | | | | Abstract
| Vilsmeier formylation of the oporphyrin-I tetraethyl ester Ni-complex (III) followed by reduction of the intermediary imine salt (IV) with N aBH4 gave the o-dimethylaminomethyl-coproporphyrin-I Ni-complex (V). Heating the latter in methyl iodide gave 65% of the eth ane-bis-porphyrin (I), which has been characterized by NMR-spectroscopy and a molecular and crystal structure investigation. The crystal structure shows an extended structure of the bisporphyrin with a parallel arrangem ent of the porphyrin subunits. Crystal data: I -C90H 106N8Ni2O 16. Triclinic, a = 12.319(3) Ä. b = 13.297(3) A, c = 14.444(3) A, a = 105.56(2)°, ß = 100.82(2)°, y = 112.98(2)°, V = 1981.0(7) A 3, Cu Ka radiation, A = 1.54178 A, space group P I, Z = 1, R = 0.07. | | | |
Reference
| Z. Naturforsch. 51b, 1644—1648 (1996); received April 23 1996 | | | |
Published
| 1996 | | | |
Keywords
| Coproporphyrin-I, Nickel Complex, Vilsmeier Formylation, Ethane-bis-porphyrin Crystal Structure | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/51/ZNB-1996-51b-1644.pdf | | | | Identifier
| ZNB-1996-51b-1644 | | | | Volume
| 51 | |
| 7 | Author
| K. Lein, Laszlo Zsolnai | Requires cookie* | | | Title
| 7 V f/? 0 < /-L ig a | | | | Abstract
| n d e n m i t z w e i v e r s c h i e d e n e n D o n o r g r u p p e n : S y n t h e s e u n d K o o r d i n a t i o n s v e r h a l t e n v o n H 3C C (C H 2 P P h 2) 2 (C H 2O H) Tripod Ligands w ith Tw o D ifferent D o n o r G ro u p s: Synthesis and C oord in atio n o f H 3C C (C H 2P P h 2)2(C H 2O H) A ndreas M uth, G u n th e r R einhard, G o ttfried H u ttner*, T hom as Seitz, T hom as Starting from pentaglycerin, H3CC(CH2OH)3, a convenient three step synthesis of the tri pod ligand H3CC(CH,PPh2)2(CH2OH) (3) (abbreviated as PPO(H)) is described and its struc ture is established by the usual analytical methods as well as by X-ray analysis. The ligand behaves as a bidentate donor towards nickel(II) as shown by the formation and X-ray analysis of the complex {PPO(H)}NiBr2 (4). In the square planar complex 4 only the PPh2 groups are coordinated. In the tetrahedral complex [{PPO(H)}2Ni](BF4)2 (5) two PPO(H) ligands sur round nickel as bidentate ligands. | | | |
Reference
| Z. Naturforsch. 49b, 889—897 (1994); eingegangen am 20. Januar 1994 | | | |
Published
| 1994 | | | |
Keywords
| Mixed Donor Groups, Bidentate Phosphine Ligand, Nickel Complexes, Functionalized Neopentyl Compound, Oxetane Cleavage | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/49/ZNB-1994-49b-0889.pdf | | | | Identifier
| ZNB-1994-49b-0889 | | | | Volume
| 49 | |
| 8 | Author
| Dana Weiß, Annette Schier, Hubert Schmidbaur | Requires cookie* | | | Title
| 2-Diphenylphosphino-phenoI as a Ligand for Mono-and Poly-Nuclear Complexes of Manganese, Cobalt, Nickel, Zinc, and Cadmium | | | | Abstract
| 2-Diphenylphosphino-phenol was chosen as an ambivalent (hard/soft) chelating ligand for biologically important first row transition metals. The expected mode of complexation is relevant to trapping of metal ions in humic acids and related environmental ion exchange systems with phenolate functions. The 1:2 complex with nickel(II) is known to have a standard mononuclear square-planar structure, and experimental evidence suggests that the new cobalt(II) complex is analogous. By contrast, zinc and cadmium were found to give novel trinulear complexes [M3(2-Ph2P-C6H4 0)6], M = Zn, Cd. In a chain of three metal atoms, the octahedrally coordinated central atom resides on a center of inversion and is solely oxygen-bound [MOö], while the two peripheral metal atoms are in a mixed coordination environment [fac-M 03P3], The analogous manganese(II) complex crystallizes as a net trihydrate, where two different trinuclear units are present in the lattice. One is of a new type and represents a centrosymmetrical hexahydrate [Mn3(2 -Ph2P-C6H4 0)6(0 H2)6]. The central part is an octahedral [Mn(OH2)6]2+ dication, which is hydrogen-bonded to two [Mn(2 -Ph2P-C6H4 0)3]~ anions. The nickel(II) complex was found to form 1:1 adducts with ZnCl2 or ZnBr2. The two complexes are isomorphous. In the adduct structure the zinc atom is attached to the two oxygen atoms of the nickel compound leaving the remainder of the molecular geometry largely unchanged. Together with the two halogen atoms a tetrahedral environment [Zn02X 2] is formed (X = Cl, Br), while the nickel atom retains its square planar [N i0 2P2] environment. | | | |
Reference
| Z. Naturforsch. 53b, 1307—1312 (1998); received August 12 1998 | | | |
Published
| 1998 | | | |
Keywords
| Phosphino-phenolate Ligands, Phenolate Ligands, Zinc Complex, Manganese Complex, Nickel Complex | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/53/ZNB-1998-53b-1307.pdf | | | | Identifier
| ZNB-1998-53b-1307 | | | | Volume
| 53 | |
|
