bluuebunny/crossref_metadata_2025_split huggingface dataset:
Some New 1-D Compounds with Metal-Halide Chain
Authors: Layek D. , Papavassiliou G. C. 
Published: February 2015

Abstract
Some new mixed valence compounds of the type [M(L-L)2M(L-L)2X2]Y4 (where M = Pt or Pd, L-L = 2NH3 or ethylenediamine, X = Cl, Br or I and Y = HSO4, 1/2 SO4, ClO4 or 1/2 PtCl4) have been synthesized. The polarized Raman spectra of single crystals show the anisotropic character and the presence of ---M(II)---X-M(IV)-X chains. The method of preparation and the chemical behaviour correspond to the mechanism of the formation of Magnus green salt oxidized product.
Non Deprotonated Metal Complexes of the Bis-amide Tetradentate Ligand N,N′ -(Dipicolyl) -1,8-naphthylenediamine
Authors: Zafiropoulos Th. F. , Perlepes S. P. , Ioannou P. V. , Tsangaris J. M. , Galinos A. G. 
Published: February 2015

Abstract
Complexes of the general formula M(LH2)Cl2 · 2 H2O, where LH2 = N,N′-(dipicolyl)-1,8-naphthylenediamine and M = Mn, Ni and Cu, have been prepared. None of the metal ions used promote amide deprotonation on coordination: LH2 acts as a tetradentate ligand.
Distorted octahedral stereochemistries for the complexes in the solid state have been proposed utilising microanalyses, magnetic susceptibilities, molar conductance measurements and IR and visible spectral data. The Ni(II) complex exhibits evidence of a polymeric structure.
Cyclische Diazastannylene, X [1] Die Kristall-und Molekülstruktur eines Moleküls mit verzerrt-würfelförmigem Sn4N3O-Käfig / Cyclic Diazastannylenes, X [1] The Crystal and Molecular Structure of a Molecule with a Distorted Cube-Shaped Sn4N3O-Cage
Authors: Veith M. , Recktenwald  
Published: February 2015

Abstract
The crystal and molecular structure of (me3CN)3(me3A1O)Sn4 has been determined from three-dimensional X-ray data (4-circle diffractometer, R - 0.048). The crystals are mono-clinic, space group P2i/c, with cell dimensions a = 1017.4(5), b - 1488.5(7), c = 1748(1) pm, β-91.5(1)° and Z - 4. The molecules approach 3m point-symmetry and include a Sn4N3O-cage, the atoms occupying the corners of a distorted cube formed by two, differently sized, interpenetrating concentric tetrahedra of tin and nitrogen/oxygen atoms. The nitrogen atoms are attached to tert-butyl groups, whereas the oxygen atom of the cage acts as a base towards the aluminiumtrimethyl group. Typical bond distances and angles (mean values) are: Sn-N = 219.9, Sn-0 = 220.3 pm; N-Sn-N = 81.2°; N-Sn-0 = 79.0°; Sn-N-Sn = 98.8° and Sn-O-Sn -100.2°.
Pt(II)-, Pd(II)-und Cu(II)-Komplexe mit dem 4.4.5.5-Tetramethylimidazolin-1-oxyl-2-m-pyridyl-3-oxid-Liganden / Pt(II), Pd(II) and Cu(II) Complexes with the Ligand 4,4,5,5-Tetramethylimidazohne-1-oxyl-2-m-pyridyl-3-oxide
Authors: Schwarzhans Karl E. , Stuefer Alfons 
Published: February 2015

Abstract
The stable free radical 4,4,5,5-tetramethylimidazoline-1-oxyl-2-m-pyridyl-3-oxide has been prepared and used as a ligand in platinum(II), palladium(II) and copper(II) complexes. The magnetic moments and the EPR spectra of the complexes and the free radical have been investigated. The complexes show a considerable interaction between the nitroxyl radicals of the ligands.
Die Darstellung von 1.3-Dunethyl-6-hydroxy-dihychothymin durch photochemische Wasser-Addition an 1.3-Dimethyl-thymin+ / Preparation of 1,3-Dimethyl-6-hydroxy-dihydrothymine by Photochemical Addition of Water to 1,3-Dimethyl-thymine+
Authors: Fahr Egon , Fecher Peter 
Published: February 2015

Abstract
UV irradiation of aqueous solutions of 1,3-dimethyl-thymine with wavelength > 280 nm yields the eis-and trans-form of water addition product 1,3-dimethyl-6-hydroxy-dihydro-thymine (2/3).
Aktivierung von Steroidsystemen zu alkylierenden Agenzien / Activation of Steroid Systems to Alkylating Agents
Authors: Wilk Manfred , Schmitt Karlheinz 
Published: February 2015

Abstract
7-Dehydrocholesterol and ergosterol are oxidised by iodine and FeCl3 under "physiologically similar" conditions to highly reactive alkylating species. These can be trapped by nucleophiles, such as 1-methylimidazole.
The oxidation of the sterols to those alkylating species is discussed as a model-reaction for the first step in chemical carcinogenesis by endogene substrates.
Beiträge zur Chemie des Phosphors, 89 [1] Cyclisierung eines 1.3-DihaIogen-1.2.3- triorganyltriphosphans zum entsprechenden Triorganyl-cyclotriphosphan / Contributions to the Chemistry of Phosphorus, 89 [1] Cyclization of a 1,3-Dihalogen-1,2,3- triorganyltriphosphane to the Corresponding Triorganyl-cyclotriphosphane
Authors: Baudler Marianne , Hellmann Jochen 
Published: February 2015

Abstract
Tri-tert-butyl-cyclotriphosphane is obtained by the dehalogenation of 1,3-diiodo-1,2,3-tri-tert-butyl-triphosphane with lithiumhydride. This reaction represents a so far unknown type of ring-closure leading to cyclotriphosphanes, which corresponds to the classical synthesis of cyclopropanes starting from 1,3-dichloropropanes.
Über die Reaktion von [(C0)4FeC(O)NMe2]-[C(NMe2)3]+ mit einigen Diorganylbromboranen / On the Reaction of [(C0)4FeC(O)NMe2]-[C(NMe2)3]+ with Some Diorganoboron Bromides
Authors: Petz W. 
Published: February 2015

Abstract
The carbamoyl complex [(CO)4FeC(O)NMe2][C(NMe2)3] (1) reacts with boron halides of the type BrBR2 (R = Me, Ph, NMe2) at low temperature to give the boroxycarben complexes 2, which decompose at ambient temperature to the aminoboranes 3 and Fe(CO)5. The 1NMR and IR spectra of the new compounds 2 are reported.
Kinetics of Oxidation of Tryptophan by Sodium Hypochlorite
Authors: Rausch Thomas , Hofmann Frieder , Hilgenberg Willy 
Published: February 2015

Abstract
The oxidation of tryptophan to 3-indoleacetaldehyde with sodium hypochlorite was investigated with 14C labelled DL-tryptophan. The reaction was performed under pseudo first order conditions. From the pH dependence of the reaction it was concluded that only the unprotonated tryptophan is converted to the aldehyde. The activation energy is 35 ± 2.2 (SE) kJ x mol-1 as derived from the Arrhenius plot. Variing the pH between 8.5 and 11.0 and the temperature in the range from 298 K to 318 K did not alter the selectivity of the reaction as confirmed by TLC of the product (purity ≧ 90%).
A possible reaction mechanism is proposed.
A Spin Trap Investigation of Azolyl Radicals
Authors: Babin V. N. , Gumenyuk V. V. , Solodovnikov S. P. , Belousov Yu. A. 
Published: February 2015

Abstract
An ability of azolyl-anions to behave as one-electrons reductans in reactions with f-nitro-sobutane and iron carbonyls are found in solu-tions. The azolyl radicals formed in reaction of azolyl-anions and azoles with t-BuNO have been trapped as corresponding nitroxide radicals. The formation of radicals from azoles can be described as consequence of proton and electron transfer acts.
Zintlphasen mit binären Anionen: Zur Kenntnis von BaGe2P2 und BaGe2As2 / Zintl Phases with Binary Anions: BaGe2P2 and BaGe2As2
Authors: Eisenmann Brigitte , Schäfer Herbert 
Published: February 2015

Abstract
The new isotypic compounds BaGe2P2 and BaGe2As2 crystallize in the tetragonal system (P42mc) with the following lattice constants:
BaGe2P2: a = 761.8 ± 0.5 pm, c = 850.0 ± 0.5 pm, c/a = 1.12,
BaGe2As2: a = 778.6 ± 0.5 pm, c = 866.4 ± 0.5 pm, c/a = 1.11.
Fourbonded Ge atoms and twobonded P (As) atoms form a three-dimensional network. The Ba atoms are located in tubelike holes.
Polymere Dimethyl-und Diphenylglyoximatokomplexe des Cobalts und Eisens mit Pyrazin als Brückenligand. Die Kristallstruktur des Bis(dimethylglyoximato)pyrazin-cobalt(II) + / Polymeric Dimethyl-and Diphenylglyoximato Complexes of Cobalt and Iron with Pyrazine as a Bridging Ligand. The Crystal Structure of Bis(dimethylglyoximato)pyrazine Cobalt(II)+
Authors: Kübel Frank , Strähle Joachim 
Published: February 2015

Abstract
Polymeric bis(dimethyl-and diphenylglyoximato)-complexes of Fe(II) and Co(II) with pyrazine as a bridging ligand have been synthesized. The Co(II) complexes are para-magnetic with μ = 1.83 B.M., and surprisingly stable against oxidation. Bis (dimethyl-glyoximato)pyrazine-cobalt (II) crystallizes monoclinic in the space group C2/m with Z = 2. The crystal structure shows linear chains of alternating Co atoms and pyrazine ligands. Perpendicular to the chain, the Co atoms are coordinated in a square planar arrangement by two dimethylglyoximato ligands (Co-N= 189 pm), the local symmetry being C2h-The long Co-pyrazine distance of 224 pm is in agreement with the fact that the compound is a 19 electron complex. The Co complexes do not have conducting properties. The Fe(II) complexes possess the same structure but with stronger bonds in the chain. They show very low conductivity of approximately 10-10 cm -1 Ω-1 . The Mössbauer spectra of the Fe-complexes are reported.
Carbonylvanadium, -mangan- und -molybdänkomplexe mit den Liganden o-C6H4EPh2(E'Ph2) (E,E' = P, As, Sb, Bi) und cis-Ph2PCH=CHPPh2 / Carbonylvanadium, -manganese and -molybdenum Complexes of the Ligandso-C6H4EPh2(E'Ph2) (E,E' = P, As, Sb, Bi) und cis-Ph2PCH=CHPPh2
Authors: Talay Ridvan , Rehder Dieter 
Published: February 2015

Abstract
The photo-induced reaction between the complexes [Et4N][V(CO)6] (1), η5-C5H5V(CO)4 (2), η5-C5H5Mn(CO)3 (3) or η5-C5H5Mo(CO)3CH3 (4) and the ligands o-C6H4EPh2(E'Ph2) (E = E' = P: a; E = P, E'=As: b; E = E ' = As: C; E = P, E ' = S b : d; E = P, E ' = Bi: e; E = As, E' = Sb: f) and cis-Ph2PCH = CHPPh2 (g), L, yields - depending on the steric requirement of L - the compounds (M}L ({M} = cis-V(CO)4-, cis-CpV(CO)2, CpMn(CO), CpMo(CO)CH3; L = a, b, c, g), {M'}L ({M'} = V(CO)5-, L - d; {M'} - CpV(CO)3, L - d, e; {M'} = CpMn(CO)2, L = e) or mixtures of {M}L and (M'}L ({M}, {M'} = V(CO)4,5, L = e,f; {M}, {M'} = CpV(CO)2,3, L = f). In the mono-substituted species {M'}L coordination (as indicated by the 51V NMR spectra) occurs through EPh2 and E'Ph2, which is explained by a reaction path via a labile chelate 5-ring structure. Shielding of the 51V nucleus decreases in the order g > SbPh2 > PPh2 > AsPh2 > BiPh2 (derivatives of 1) and g > SbPh2 > PPh2 > BiPh2 >AsPh2 (derivatives of 2), and is smaller in the rigid chelates incorporating the o-phenylene ligands than in the more flexible structures of phospha- and arsabutane complexes. This fact is discussed in terms of hindered σ-overlap due to distortion of the EVE angle, which also results in an increase of CO valence force constants in rigid chelates. 31P coordination shifts increase according to dppe < a < g and arphos < b (dppe = Ph2P(CH2)2PPh2, arphos = Ph2As(CH2)2PPh2). 31P NMR spectra of the molybdenum complexes suggest that the basic geometry for 4a and 4b likely is tetragonal pyramidal, while the preferred structure for 4g appears to be the trigonal bipyramid with the ligand in equatorial positions. The crystal and molecular structure of 1a is reported. The complex crystallizes in the space group C2/c (a = 2196.0, b= 1080.1, c = 2022.7 pm, β= 124.6°). The most striking result is the small PVP angle of 80.8 (0.2)°. Optimized methods for the synthesis of the ligands a-f are described; the ligands are characterized by their mass spectra.
Koordinationsverbindungen des reduzierten Pyrazins mit Alkylderivaten von Bor, Aluminium, Gallium und Indium / Coordination Complexes of Reduced Pyrazine and Alkyl Derivatives of Boron, Aluminum, Gallium, and Indium
Authors: Kaim Wolfgang 
Published: February 2015

Abstract
The alkyls MR3 (M = B, AI, Ga, In) react with pyrazine (Pz) and sodium in THF to yield persistent radical complexes Pz(MR2)2 · +MR4
- (1). Use of TIR3 leads to rapid deposition of thallium metal. The formation of these ionic complexes 1 is the result of MR3 dissociation into +MR2 and -MR4 ions. All radicals have been identified and characterized by ESR; the data reveal the influence of

back bonding in the boron derivative.
Lanthanide(III) Complexes of Oxamic Acid
Authors: Perlepes S. P. , Zafiropoulos Th. F. , Kouinis J. K. , Galinos A. G. 
Published: February 2015

Abstract
The preparation, for the first time, of the deprotonated complexes of oxamic acid with Ce(III), Pr(III), Nd(III), Sm(III), Eu(III), Dy(III), Ho(III) and Yb(III) is reported. Properties, analytical results, conductometric measurements, magnetic moments and spectral data (IR and diffuse reflectance spectra) are discussed in terms of possible structural types and the nature of the bonding. Oxamic acid acts as a bidentate non-bridging ligand.
Selective Suecinylation of Adenosine Catalyzed by 4-Morpholine-N,N′ -dicyclohexylcarboxamidine
Authors: Sauer C. , Schwabe U. 
Published: February 2015

Abstract
Succinyl derivatives of adenosine are synthesized by direct reaction with succinic anhydride catalyzed by 4-morpholine N,N′-dicyclohexylcarboxamidine under kinetic or thermodynamic conditions and partial hydrolysis. Derivatives obtained were N6 -succinyl adenosine, N6 ,5′-O-disuccinyl adenosine, 3′(2′)-O-succinyl adenosine, N6, 3′(2′)-O-di-succinyl adenosine and 3′(2′),5′-O-disuccinyl adenosine. The last three derivatives were crystallized and gave equilibrium mixtures of 2′-O-and 3′-O-isomers in aqueous solvents with the 3′-O-isomer prevailing. Differentiation of isomers was done by PMR. A mechanism for isomerisation is proposed. The products were purified by anion exchange chromato-graphy and desalting. The procedures are useful for pharmacological applications because of the purity and yield of products.
Occurrence of trans-3-Hexenal in Thea sinensis Leaves
Authors: Hatanaka A. , Kajiwara T. 
Published: February 2015

Abstract
Based on a discovery of trans-3-hexenal and participation of isomerases and non-enzymatic isomerizing factors, the biogenetic pathway of trans-2-hexenal (leaf aldehyde) and cis-3-hexenol (leaf alcohol) has been demonstrated.
The X-ray Structure of gem-N3P3Cl4(NPPh3)2-Conformation of the NPPh3 Groups
Authors: Krishnaiah M. , Ramamurthy L. , Ramabrahmam P. , Manohar H. 
Published: February 2015

Abstract
An X-ray crystallographic study of geminal tetrachlorobis(triphenylphosphazenyl)cyclotriphosphazatriene reveals Type II conformation of both triphenylphosphazenyl groups with respect to the P-N ring. These results are consistent with 31P NMR data. The phosphazene ring has a distorted chair conformation.
Ungewöhnliche Substitutionsreaktion von (σ-Allyl)manganpentacarbonyl mit 2.3-Bis(diphenylphosphino)-N-methylmaleinimid / Unusual Reaction of (σ-Allyl)manganesepentacarbonyl with Bis(diphenylphosphino)-N-methyl Maleic Anhydride
Authors: Fenske D. , Brandt K. , Stock P. 
Published: February 2015

Abstract
σ-C3H5 · Mn(CO)5 reacts with bis(diphenyl-phosphino)-N-methyl maleic anhydride to form a complex in which the C3H5-ligand migrates from the coordination sphere of Mn to the phosphine ligand. The high yield (70%) suggests that this reaction takes place within the coordination sphere of Mn. The product (X-ray analysis) shows unusual bonding properties.
Rb4Au7Sn2, eine intermetallische Phase mit siebenatomigen Goldclustern/ Rb4Au7Sn2, an Intermetallic Phase with Sevenatomic Gold-Clusters
Authors: Sinnen Heinz-Dieter , Schuster Hans-Uwe 
Published: February 2015

Abstract
In the course of our investigations of the ternary system Rb-Au-Sn we obtained the new compound Rb4Au7Sn2. Its crystal structure has been determined by single crystal X-ray diffraction data. It crystallizes in the hexagonal (rhombohedral) space group R3̄m with unit-cell parameters a = 680.1(3) pm and c = 2909.0(7) pm, and Z = 3. The structure is similar to that of Laves-Phases of the MgCu2-type.
Reaktionen von cis-Crotonsäurederivaten mit Cyclopentadien in heterogener Phase/ Reaction between cis-Crotonic Acid Derivatives and Cyclopentadiene in the Heterogeneous Phase
Authors: Parlar H. , Baumann R. , Körte F. 
Published: February 2015

Abstract
Diels-Alder reactions between cyclopenta-diene and cis-crotonic acid derivatives were examined in the absorbed phase on various surfaces. The results indicate considerable differences under these conditions in the relative yields of exo and endo isomers. On silica gel, montigel, and aluminium oxide the reactions give mainly endo isomers.
N-Brom-N-chlorsulfonamide. Herstellung und Reaktionen mit Phenylmetallverbindungen/N-Bromo-N-chlorosulfonamides. Preparation and Reactions with Phenylmetallics
Authors: Mohr Steffen , Jander Jochen , Latscha Hans Peter 
Published: February 2015

Abstract
The preparation of CH3SO2NBrCl and p-CH3C6H4NBrCl is described. These compounds react with (C6H5)4Sn, (C6H5)4Pb, and (C6H5)2Hg to give derivatives
CH3SO2N(C1)M(C6H5)n-1. In these reactions one phenyl group is cleaved from the metal.
Mechanism of the Allomerization of Chlorophyll: Inhibition of the Allomerization by Carotenoid Pigments
Authors: Hynninen Paavo H. 
Published: February 2015

Abstract
It is shown that the allomerization of chlorophylls a and b is effectively inhibited by carotenoid pigments. In the light of this finding, two possible mechanisms are considered for the allomerization. One assumes the addition of singlet oxygen to the 9,10-double bond of the chlorophyll (Chl) enolate anion to yield a C-10 hydroperoxide or a dioxetane derivative. The other assumes a free-radical chain reaction involving Chl enolate anion, triplet oxygen, Chl C-10 radicals and peroxide radicals, and Chl C-10 hydroperoxide. The observation that the allomerization and its inhibition by carotenoids occur under carefully controlled dark conditions precluding singlet oxygen formation provides substantial support to the latter mechanism. Further evidence for the free-radical mechanism is obtained by observing the increase of the allomerization rate when air is replaced with pure oxygen from a container. The rate increases to about two-fold in the methanolic Chl solution containing no carotenoid but remains close to zero in the Chl solution containing an equimolar amount of β-carotene. The relevance of the results to photosynthesis and cancer research is briefly discussed.
Darstellung und Struktur von Di-gold(III)bis(selenit)(diselenit), Au2(SeO3 )2(Se2O5)/Preparation and Crystal Structure of Di-gold(III)bis(selenite) Diselenite, Au2(SeO3 )2(Se2O5)
Authors: Jones Peter G. , Schwarzmann Einhard , Sheldrick George M. , Timpe Harald 
Published: February 2015

Abstract
The compound Au2(SeO3)2(Se2O5) was prepared from gold metal and seienic acid at 553 K. The crystal structure [C2/c, a = 2034.4(5), b = 413.0(1), c = 1325.4(3) pm, β = 115.88(3)°, Z = 4] was refined to R = 0.035. Both gold atoms lie on crystallographic centres of symmetry and show square planar coordination (Au-0 196.9-201.3 pm). The extended structure consists of three cross-linked systems of the form [··· -Au-(selenite or diselenite) -Au-···].
Acyl-und Alkylidenarsane, V [1] (Dimethylaminomethyliden)-phenylar8an, ein acyclisches Alkylidenarsan / Acyl-and Alkylidenearsines, V [1] (Dimethylaminomethylidene)-phenylarsine, an Acyclic Alkylidenearsine
Authors: Becker Gerd , Münch Angelika , Wessely Hans-Jürgen 
Published: February 2015

Abstract
Alkylidenearsines, Aminomethylidenearsines, Barrier of Rotation In the absence of a catalyst phenyl-bis(trimethylsilyl)arsine (1 a) reacts only very slowly with excess dimethylformamide (4) to give (dimethylaminomethylidene)-phenylarsine (8 a) and hexamethyldisiloxane (5). In the presence of small amounts of solid sodium hydroxide, however, the reaction is already finished after four days at + 20 °C. Similarly, lithium phenyltrimethylsilylarsenide · DME (2 a), which can easily be obtained from la and methyllithium in 1,2-dimethoxyethane (DME), and dimethylformamide (4) also form the alkylidenearsine (3 a) and lithium trimethylsilanolate. The NMR spectra of 3 a show the rotation of the dimethylamino group to be hindered with a barrier of about 63 kJ · mol-1 .
Phosphinsubstituierte Chelatliganden, II [1] Thiocarbamoylphosphinsulfid-und -oxid-Komplexe des Mangans und Rheniums / Phosphine Substituted Chelate Ligands, II [1] Thiocarbamoylphosphine Sulfide and Oxide Complexes of Manganese and Rhenium
Authors: Kunze Udo , Antoniadis Antonios 
Published: February 2015

Abstract
Thiocarbamoylphosphine sulfides 1 a-c and oxides 2 a-c are ambidentate chelating ligands which may form monomeric or dimeric complexes with carbonylmetal halides. The reaction of 1 a-c with ClMn(CO)5 and ClRe(CO)5 yields the monomeric cw-tetracarbonyl complexes 3 a-c and 4 a-c with S,S'-coordination. The phosphine oxides 2 a-c first form tetracarbonyl complexes which dimerize spontaneously under loss of CO to give the anfi-fac-tricarbonyl complexes 6 a-c and 6 a with bridging three-coordinate sulfur. On refluxing in n-hexane solution, 8 a-c and 4b, c are converted into the corresponding dimers 7 a-c and 8 b, c. Dissolving of 7 b, c in CH2Cl2 leads to re-formation of 8 b, c, the free ligands 1 b, c and inorganic manganese compounds.
Die 2.2.2-Trichlor -tert-butyloxycarbonyl -Gruppe als N-Schutzgruppe bei Oligonukleotidsynthesen / The 2,2,2-Trichloro-tert-butoxycarbonyl Group, an N-Protecting Group in Oligonucleotide Synthesis
Authors: Schneiderwind Ruth G. K. , Ugi Ivar 
Published: February 2015

Abstract
The preparation and properties of N6 -2,2,2 -trichloro -tert-butoxycarbonyl -adenosine axe described as a model of a new protecting group technique for amino groups in oligo-nucleotide syntheses.
New Anthraquinones and Anthraquinone Glycosides from Morinda lucida
Authors: Demagos George P. , Baltus Wolfgang , Höfle Gerhard 
Published: February 2015

Abstract
From the trank heartwood of Morinda lucida four new anthraquinones, 3-hydroxy-anthraquinone-2-carbaldehyde, morindone-5-methyl ether, munjistin methyl ester, damna-canthol-ѡ-methyl ether and two glycosides, soranjidiol 6-0-β-primveroside and lucidin 3-0-β-primveroside were isolated and identified by spectroscopic and chemical methods.
η1,η3-Octadienediyl-palladium Complexes
Authors: Döhring A. , Jolly P. W. , Mynott R. , Schick K.-P. , Wilke G. 
Published: February 2015

Abstract
1,3-Dienes react with bis(η3 -allyl)palladium-ligand systems to give the title compounds which are believed to be involved, as intermediates, in the palladium-catalyzed oligomeriation of dienes.
Über die Instabilität von NiTiO3 unter der Wirkung eines Sauerstoffpartialdruck-Gradienten Instability of NiTiO3 in an Oxygen-Potential Gradient
Authors: Laqua W. 
Published: February 2015

Abstract
If a NiTiO3 poly crystal is exposed to an oxygen-potential gradient -established by the simultaneous action of two different oxygen partial pressures -it will be decomposed into its component oxides NiO and TiO2 despite the fact, that the compound is stable at both the lower and the higher oxygen partial pressure. A quantitative explanation of this phenomenon will be given below.
π-Olefin-Iridium-Komplexe, VII [1] Komplexbildung von Iridium mit Fulvenen / π-Oefin Iridium Complexes, VII [1] Complex Formation of Iridium with Fulvenes
Authors: Müller Jörn , Stock Rainer , Pickardt Joachim 
Published: February 2015

Abstract
Reactions of [Ir(COD)Cl]2 (COD = 1,5-cyclooctadiene) with either i-C3H7MgBr or CH3Li in the presence of dimethyl-and diethylfulvene, respectively, yield complexes of the type [Ir(COD)(C5H4R)] where C5H4R is a cyclopentadienyl ligand. The nature of the substituent R depends on the fulvene as well as on the alkyl reagent. The compounds were characterized by NMR and mass spectra and in one case by X-ray diffraction analysis.
Ba5Sb4 - das erste Erdalkalipnictid mit GdsSi4 - Struktur / Ba5Sb4 - The First Alkaline Earth Pnictide with the Gd5Si4 Structure Type
Authors: Brechtel Erwin , Cordier Gerhard , Schäfer Herbert 
Published: February 2015

Abstract
Ba5Sb4 crystallizes in the orthorhombic system (Puma) with a = 901.2 ± 0.3 pm, b = 1782.3 ± 0.6 pm, c = 904.1 ± 0.3 pm. The compound is isotypic to the Gd5Si4 structure type and is to classify as a Zintl-phase