| 3 | Author
| M. Bobadilla, M. Morán | Requires cookie* | | Title
| Oxidative Addition of Pseudohalogen to [P(OPh)3]4Ni  | | | Abstract
| The title compound reacts with cyanogen halides, XCN (X = Br or I) to give the com-plexes L2(X)(CN)Ni (L = P(OPh)3, X = Br or I). The oxidative addition of (SCN)2 and (SeCN)2 to the same compound results in the formation of L2Ni(XCN)2 (X = S or Se). All the complexes have been characterized by elemental analysis, and IR, iH NMR and electronic spectra. | | |
Reference
| Z. Naturforsch. 38b, 1069—1071 (1983); received May 13 1983 | | |
Published
| 1983 | | |
Keywords
| Pseudohalogens, IR Spectra, Nickel | | |
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| default:Reihe_B/38/ZNB-1983-38b-1069.pdf | | | Identifier
| ZNB-1983-38b-1069 | | | Volume
| 38 | |
4 | Author
| Christian Dietz, FrankW. Heinemann, Andreas Grohmann | Requires cookie* | | Title
| Uniform Sidearm Derivatisations in a Tetrapodal Pentaamine: Ligands with NN4 O4 Donor Sets, and a Bis(Ferrocenecarbaldehyde Aminal)  | | | Abstract
| The tetrapodal pentaamine 2,6-C5H3N[CMe(CH2NH2)2l2 (pyN_u 1) readily reacts with four equivalents of 2-hydroxyphenyl-substituted carbonyl compounds, such as (i) 2-hydroxybenz-aldehyde, (ii) 2,4-dihydroxybenzaldehyde, (iii) 3,5-di-rm-butyl-2-hydroxybenzaldehyde, and (iv) 2-hydroxyacetophenone, to give the corresponding Schiff base derivatives with N N 4O .1 donor sets (i: 2; ii: 3, iii: 4; iv: 5). With ligand 5, two transition metal complexes (M = Ni1 (6), Cu1 1 (7)) have been isolated, which are dinuclear and contain square-planar M(N202) units, linked by a pyridine-derived spacer whose nitrogen atom is uncoordinated. The reaction of 1 with ferrocenecarbaldehyde affords, under neutral conditions and irrespective of an excess of the aldehyde present, the bis(aminal) 8 as the major product, in which the two 1,3-propylenediamine subunits of 1 have condensed with two carbaldehyde moieties to give two 1,3-diazacyclohexane rings. All compounds have been characterised by IR spectroscopy and elemental analysis, as well as 'H and l3C NMR spectroscopy (except paramagnetic 7). The crystal structures of compounds 2, 6, 7, and 8 have been determined. | | |
Reference
| Z. Naturforsch. 55b, 1037—1044 (2000); received July 28 2000 | | |
Published
| 2000 | | |
Keywords
| Nonadentate Ligand, Schiff Base, Nickel | | |
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| default:Reihe_B/55/ZNB-2000-55b-1037.pdf | | | Identifier
| ZNB-2000-55b-1037 | | | Volume
| 55 | |
6 | Author
| Albrecht Mewis, Astrid Distler | Requires cookie* | | Title
| Zur Kenntnis der Verbindungen CaNi2As2, SrNi2As2 und Ca2)3NiU)7As7  | | | Abstract
| Investigations of the systems Ca(Sr)-Ni-As resulted in the discovery of three ternary phases. CaNi2As2 and SrNi2As2 are isotypic and crys-tallize in the ThCr2Si2-structure (space group 14/mmm) with the following constants: CaNi2As2 a = 406.5(1) pm, c= 994.9(2) pm, SrNi2As2 a = 415.4(1) pm, c = 1029.0(2) pm. Ca2.3Niu.7As7 (0= 940.4(1) pm,c= 381.6(l)pm) crystallizes in a hexagonal lattice; a Zr2Fei2P7-structure is supposed. | | |
Reference
| Z. Naturforsch. 35b, 391—393 (1980); eingegangen am 26. November 1979 | | |
Published
| 1980 | | |
Keywords
| Arsenides, Nickel, Crystal Structure, Calcium, Strontium | | |
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| default:Reihe_B/35/ZNB-1980-35b-0391_n.pdf | | | Identifier
| ZNB-1980-35b-0391_n | | | Volume
| 35 | |
7 | Author
| A. Döhring, P. W. Jolly, C. Krüger, M. J. Romão | Requires cookie* | | Title
| The Ni(0)—C0 2 System: Structure and Reactions of [Ni(PCy 3 ) 2 (i/ 2 -C0 2 )]  | | | Abstract
| The reactions of a variety of bis(tricyclohexylphosphine)nickel species with C0 2 have been studied. The product of the reaction is solvent dependent: in toluene the known complex [NiL 2 (/7 : -C0 2)]-toluene (L = PCy 3) is formed while in ether or pentane a binuclear complex [(NiL 2) 2 (?;-C0 2)] results through the intermediacy of the solvent free species [NiL 2 (// 2 -C0 2)] the structure of which has been determined by X-ray crystallography. | | |
Reference
| Z. Naturforsch. 40b, 484—488 (1985); received November 30 1984 | | |
Published
| 1985 | | |
Keywords
| Carbon Dioxide Complexes, Nickel, X-Ray | | |
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| default:Reihe_B/40/ZNB-1985-40b-0484.pdf | | | Identifier
| ZNB-1985-40b-0484 | | | Volume
| 40 | |
8 | Author
| N., Silke Busche, Karsten Bluhm | Requires cookie* | | Title
| Synthese und Kristallstruktur der ersten zinkhaltigen Pyroborate  | | | Abstract
| ii,5Z n 0,5(6 2 0 5) UI,d C o ^ Z n o ^ I ^ O s) Synthesis and Crystal Structure of the First Zinc Containing Pyroborates Nii.5Z n0.5(B2O 5) and Coj 5Z n0.5(B2O 5) The first zinc containing pyroborates Ni! sZ n ^ B ^ O s) (A) and 5Zn0 5(B 2O 5) (B) were prepared by using a B20 3 flux technique. Single crystals were investigated by X-ray diffrac tion and showed triclinic symmetry, space group C j-P l. The structures are isotypic to C o9(B 20 5) with the lattice parameters (A) « = 331.28(6), 6 = 613.87(11), c = 922.2(2), a = 104.067(11) °, ß = 90.672(13) °, y = 92.413(12) 0 and (B) 0 = 315.89(2), 6 = 612.84(6), c = 927.72(6), a = 104.103(7) °, ß = 91.020(6) °, y = 92.540(7) °, Z = 2. All metal point positions show an octahedral oxygen coordination and a partly statistical distribution o f Zn2+ and N i2+ or C o2+, respectively. Isolated nearly planar B20 5 units connect ribbons consisting o f edge sharing metal octahedra. | | |
Reference
| Z. Naturforsch. 50b, 1445—1449 (1995); eingegangen am 25. April 1995 | | |
Published
| 1995 | | |
Keywords
| Zinc, Nickel, Cobalt, Pyroborate, Crystal Structure | | |
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| default:Reihe_B/50/ZNB-1995-50b-1445.pdf | | | Identifier
| ZNB-1995-50b-1445 | | | Volume
| 50 | |
9 | Author
| S. Meyer, Hk Müller-Buschbaum | Requires cookie* | | Title
| Kurze O-O-Abstände einer gemeinsamen Polyederkante bei Verknüpfung von P 0 4-Tetraedern mit V 0 6-0ktaedern im Vanadyl-Orthophosphat C aN i(V 0)(P04)2 Short 0 -0 Distances in Edge Sharing P 0 4 Tetrahedra and V 0 6 Octahedra o f the Vanadyl- Orthophosphate C a N i(V 0 )(P 0 4)2  | | | Abstract
| Single crystals of the new compound C aN i(V 0)(P 04)2 have been prepared by solid state reactions below the melting point of the oxide mixture in evacuated quartz tubes. X-ray inve stigations ledoto orthorhom bic symmetry, space group D2£-Pnma, a -14.113(1), b -6.408(1), c = 7.364(1) A, Z = 4. The crystal structure shows J. [N i0 4] and J. [V 0 6P20 3] polyhedra chains closely related to analogous chains in the isotypic compound CdV20 (P 0 4)2. The short V -0 distance of 1.66 A indicates a vanadyl group as the main difference to CdV20 (P 0 4)2. The short 0 -0 distance of 2,395 A of the edge-sharing P 0 4 tetrahedra and V 0 6 octahedra is discussed. | | |
Reference
| Z. Naturforsch. 52b, 981—984 (1997); eingegangen am 12. Mai 1997 | | |
Published
| 1997 | | |
Keywords
| Calcium, Nickel, Vanadium Phosphate, Crystal Structure | | |
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| default:Reihe_B/52/ZNB-1997-52b-0981.pdf | | | Identifier
| ZNB-1997-52b-0981 | | | Volume
| 52 | |
11 | Author
| Joachim Heinickea, Attila Dala, Hans-Friedrich Kleinb, Olaf Hetcheb, Ulrich Flörkec, Hans-Jürgen Hauptc | Requires cookie* | | Title
| Formation of r71-P-(2-Phosphinophenol)Ni(0)(PMe3)3 and Oxidation to cjs/fraws-Bis(2-phosphinophenolato)nickel(II) Complexes  | | | Abstract
| o-Phosphinophenols 1 (P ^ O H) react with equimolar amounts of Ni(PMe3)4 at low tempera tures to give yellow Ni(0) complexes such as [(HO~P)Ni(PMe3)3] 2a with only P coordination of the P ^ O H ligand. Oxidation of solutions of 1 and Ni(PMe3)4 by dioxygen leads to brown bis(o-phosphinophenolato-P^O)nickel chelate complexes 3a-d. Structure elucidation by NM R is consistent with a m-square planar geometry for 3a-c and a rrans-square planar solution struc ture of the terr-butylphenylphosphino derivative 3d. The geometric isomers were distinguished by different ranges of phosphorus coordination shifts and 3lP-l3C-2 and 3IP-13C-1 coupling | | |
Reference
| Z. Naturforsch. 54b, 1235—1243 (1999); received May 19 1999 | | |
Published
| 1999 | | |
Keywords
| Phosphinophenolate, Nickel, Complexes, Structure Elucidation, Solid State Structures | | |
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| default:Reihe_B/54/ZNB-1999-54b-1235.pdf | | | Identifier
| ZNB-1999-54b-1235 | | | Volume
| 54 | |
12 | Author
| Hans-Ulrich Meisch, Wolfgang Reinle, Bernd-Arwed Richter | Requires cookie* | | Title
| Zur Frage biogener Anreicherungen von Vanadium und Nickel in Pflanzen des Karbonzeitalters The Question of Biogenous Enrichments of Vanadium and Nickel in Plants of the Carbon Age  | | | Abstract
| O riginal carbonaceous m aterial of fossile carbon plants from the divisions of the Equisetophyta (Calam ariaceae), Lycophyta (Lepidodendraceae, S igillariacea e), Filicophyta (F ilicatae), and Sper-matophyta (Pteridospermatae, Cordaitidae) was analyzed by atomic absorption spectroscopy on its content of the trace metals vanadium and nickel. The average V-content was found to be 1 0 to 100 fold higher than that of the neighbouring coal beds or that of the embedding materials, while the Ni-concentrations were found to be almost in the same range. The highest contents of V and N i were found in the Calamariaceae and in the Pteridospermatae. The V-and Ni-contents of the fossile carbon plants are compared to those of related recent plant genera (clubmosses, horse tails, fern s), which were analyzed by 46 representative samples. A possible biogenous enrichment of V and N i in plants of the carbon age is discussed. | | |
Reference
| Z. Naturforsch. 33c, 616 (1978); eingegangen am 7. Juni/21. Juni 1978 | | |
Published
| 1978 | | |
Keywords
| Vanadium, Nickel, Carbon, Carbon Plants, Ferns, Horsetails, Clubmosses | | |
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| default:Reihe_C/33/ZNC-1978-33c-0616.pdf | | | Identifier
| ZNC-1978-33c-0616 | | | Volume
| 33 | |
14 | Author
| Silke Buchler, Franc Meyer, Albrecht Jacobi, Peter Kircher, Laszlo Zsolnai | Requires cookie* | | Title
| Novel Dinucleating Ligand Systems Containing Two Adjacent Coordination Compartments of the Potential Triamidoamine-Type -Nickel(II) and Cobalt(II) Coordination Chemistry  | | | Abstract
| The preparation of novel dinucleating pyrazolate ligands H5L3 -H5L8 carrying chelating side arms with appending secondary amine functions is reported. Following different synthetic routes, either CH2CF3, C6H2F3 , or CftF? moieties can be introduced as substituents at the termi nal nitrogen atoms. These systems are reminiscent of two coupled coordination compartments of the potential triamidoamine-type. Crystallographic analyses of a series of bimetallic complexes of the CH2CF3-substituted ligand H5L4 with NiCh and C0 CI2 reveal manifold coordination modes in the solid state, resulting from the facile detachment of a single or several N-donor sites from the metal centers. Coordination number sets {4/6} (in H5L4Co2CU) and {5/6} (in H4L4Ni2Cl3, H4L4Co2Cl3 and H5L4Ni2CL) are thus observed. In the non-deprotonated HsL-type systems the remaining protons are found to be scavenged by a pyrazolate-N (in H5L4Ni2CU) or an amine function of a ligand side arm (in H ^ C o iC U). | | |
Reference
| Z. Naturforsch. 54b, 1295—1306 (1999); received June 18 1999 | | |
Published
| 1999 | | |
Keywords
| Dinuclear Complexes, N-Ligands, Nickel, Cobalt, Solid-State Structures | | |
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| default:Reihe_B/54/ZNB-1999-54b-1295.pdf | | | Identifier
| ZNB-1999-54b-1295 | | | Volume
| 54 | |
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