bluuebunny/crossref_metadata_2025_split huggingface dataset:
Beiträge zur Chemie des Schwefels, 118 [1] Synthese von Pentathianen und Hexathiocanen / Contributions to the Chemistry of Sulfur, 118 [1] Synthesis of Pentathianes and Hexathiocanes
Authors: Fehér Franz , Glinka Klaus 
Published: February 2015

Abstract
The syntheses of the new compounds dimethylpentathiane, cyclohexylidenepentathiane, dibenzylpentathiane, 1,2,3,5,6,7-hexathiocane, 4,8 -dimethyl-1,2,3,5,6,7 -hexathiocane and bis (cyclohexylidene) -1,2,3,5,6,7 -hexathi - ocane are described. The main mass spectral fragmentation paths are given for both classes of compounds
Darstellung und Kristallstruktur von K3Ag3As2 und K3Cu3As2 / On the Preparation and Crystal Structure of K3Ag3As2 and K3Cu3As2
Authors: Savelsberg Gerhard , Schäfer Herbert 
Published: February 2015

Abstract
Two new intermetallic compounds K3Ag3As2 and K3Cu3As2 have been prepared and their crystal structures determined. They crystallize in the rhombohedral space group R3̅m with
K3Cu3As2: a = 576(2) pm, c = 2026(5) pm,
K3Ag3As2: a = 599(2) pm, c = 2135(4) pm.
and are isotypic to K3Cu3P2
Die Kristallstruktur von Phosphortrichlorid bei –110 °C / The Crystal Structure of Phosphorus Trichloride at –110 °C
Authors: Hartl Hans , Rama Michael 
Published: February 2015

Abstract
A low temperature (-110°C) X-ray structural analysis of PCI3 yielded the bond distances P-Cl = 203.43(12) and 201.86(23) pm and bond angles Cl-P-Cl = 100.04(7)° and 100.19(7)°. The shortest intermolecular contacts P ··· Cl and Cl ···C1 are in the range of the sum of van der Waals-radii
1.3.4.2-Thiadiazaphospholin-2-thione / 1,3,4,2-Thiadiazaphospholine-2-thiones
Authors: Zeiß Werner , Schmidpeter Alfred 
Published: February 2015

Abstract
Perthiophosphonic anhydrides (1) and phos-phorus(V) sulfide react with benzo-phenylhydra-zonoyl chloride (2) eliminating HCl and yielding the title compounds 3 and 4, which formally are cycloadducts of the monomeric units RPS2 and P2S5, respectively, and diphenyl nitrilimine. The corresponding cycloreversion is observed in their mass spectra.
Reactions of Substituted Xanthotoxin with Nitriles and Hydrazines
Authors: Hishmat . H. , Abd el Rahman A. H. , Gohar A.-K. M. N. , Abdel-Rahman M. H. 
Published: February 2015

4-Bromoxanthotoxin reacts with cyanoacetamide to form 4-bromo-o,6-dihydroxantho- toxin, which on hydrolysis with cold hydrochloric acid leads to the formation of cyano- acetic acid derivative, but hydrolysis by boiled hydrochloric acid gives the acetic acid derivative.
Thio-, and 4-nitroxanthotoxin reacts with malononitrile in presence of piperidine by addition to give thio- and 4-nitro-5,6-dihydroxanthotoxin-5-[1',3,,3'-tricyano-2-amino- propene-(2)] respectively, while in presence of ammonia leads to the formation of 5- malononitrile derivatives.
The reaction of hydrazine and phenyl hydrazine with thio- and 4-bromothioxanthotoxin leads to the formation of the hydrazones.
Also thio- and 4-bromothioxanthotoxin reacts with anhydrous aluminium chloride in benzene by cleavage of the furan ring and the formation of 6-(1,2-diphenylethyl)-7,8- dihydroxythiocoumarin and 5-bromo-6-(1,2-diphenylethyl)-7,8-dihydroxythiocoumarin, respectively
Übergangsmetall-Carbin-Komplexe, LI Neue Carben-Komplexe des Mangans durch Umsetzung kationischer Carbin-Komplexe mit Nukleophilen /Transition Metal Carbyne Complexes, LI Novel Carbene Complexes of Manganese by Reaction of Cationic Carbyne Complexes with Nucleophiles
Authors: Fischer Ernst Otto , Besl Gerhard 
Published: February 2015

Abstract
Noveldicarbonyl(π-cyclopentadienyl)-or dicarbonyl (π-methylcyclopentadienyl)-
(methylcarbyne)manganese tetrachloroborates (4 or 4 a)result from the reaction of dicarbonyl(π-cyclopentadienyl)-ordicarbonyl(π-methylcyclopentadienyl)[methoxy(methyl)- carbene]manganese (3 or 3 a)with boron trichloride.The reactions of 4 or 4 a with potassium isothiocyanate and of 4 a with lithium cyclopentadienide lead via nucleophilic attack of the anions to neutral carbene complexes.Dicarbonyl(π-cyclopentadienyl) (phenyl-carbyne) manganese tetrachloroborate (1) reacts with cyanate yielding a isocyanate-(phenyl)carbene complex. Conditions of preparation, properties and spectroscopic investigations are reported.
Einige neue Iridium-Komplexe von Phosphor-yliden /Some New Iridium Complexes of Phosphorus Ylides
Authors: Fraser T. E. , Fuller H.-J. , Schmidbaur H. 
Published: February 2015

Abstract
From the iridium complexes [(1,5-C8H12)IrCl]2, [(C8H14)2IrCl]2 and [(C6H5)3P]2lr(CO)Cl, and the ylides (CH3)3P = CH2 and (CH3)3P = N-P(CH3)2 = CH2, a number of organoiridium compounds has been synthesized. Whereas with (CH3)3P = CH2 the transylidation reaction is very slow and simple addition with formation of sparingly soluble products prevails, the double ylide forms cyclic complexes quite readily. These ylide chelates were characterized by analytical and spectroscopic data.
Resonanz-Raman-Spektrum von Tetrabutylammoniiimoktaiododirhenat(III), [(n-C4H9)4N]2[Re2I8] Resonance Raman Spectrum of Tetrabutylammoniumoctaiododirhenate(III), [(n-C4H9)4N]2[Re2l8]
Authors: Preetz W. , Peters G. , Rudzik L. 
Published: February 2015

Abstract
Irradiation of [(n-C4H9)4N]2[Re2l8] at 80 K with exciting laser lines, which approximately coincide with the electronic band maximum at 520 nm, exhibits resonance Raman spectra. Overtone progressions of ν1(Re-Re) and ν2(Re-I), both A1g, and many combination tones are observed. The spectroscopic constants are calculated to be ω1 =258,5 cm -1 , x11 = - 0,42 cm-1 ; ω2 -153,0 cm-1 , x12 = - 0,32 cm-1.
Bindungsisomere Hexakis(thiocyanato-isothiocyanato)osmate(III) /Bond-Isomeric Hexakis(thiocyanato-isothiocyanato)osmates(III)
Authors: Preetz W. , Peters G. 
Published: February 2015

Abstract
On treatment of K2[OsX6], X = Cl, Br, I with KSCN in aqueous solution mixtures of bond-isomeric hexakis(thiocyanato-isothiocyanato)complexes, [Os(NCS)n(SCN)6-n] 3-, n = 1-6, are formed. At low temperatures and short reaction times species with more S-bonded, after longer boiling species with more N-bonded ligands are preferred, indicating the increase of thermodynamic stability with growing n-values. The isolation of the pure bond isomers n = 1-6, is achieved by ion exchange chromatography on diethylaminoethyl-cellulose. The assignment of the individual species is based upon the intensity ratios of characteristic group frequencies in the IR and Raman spectra. The UV-VIS spectra also show significant shifts within the series.
Reaktionen polyhalogenierter Cyclobutene mit Trimethylphosphit /Reactions of Polyhalogenated Cyclobutenes with Trimethylphosphite
Authors: Bauer Gert , Hagele Gerhard 
Published: February 2015

Abstract
Structure and reactive behaviour of polyhalogenated cyclobutenes towards trimethyl phosphite are studied in detail. Stable phosphoranes RP(F)(OCH3)3 as intermediates of Arbuzov-type reactions are obtained. Controlled decomposition of phosphoranes leads to highly reactive cyclobutenyl substituted phosphonic acid esters RP(O)(OCH3)2. Substitution reactions at aliphatic and vinylic positions of RP(O)(OCH3)2 are observed. Biphosphonic acid esters R[P(O)(OCH3)2]2 are synthesized. Some routes to perhalogenated cyclobutenes are described. NMR and MS data for the hitherto unknown cyclobutenyl-substituted organophosphorus compounds are given.
Na3FeS3, ein Thioferrat mit isolierten [Fe2S6]-Anionen /Na3FeS3, a Thioferrate with Isolated [Fe2S6]-Anions
Authors: Müller Paul , Bronger Welf 
Published: February 2015

Abstract
Na3FeS3 can be synthesized by the reaction of sodium carbonate with iron sponge at 1000 K under a stream of H2S. X-ray investigation on single crystals revealed its structure. The monoclinic unit cell contains four formula units, the space group is P21/n. The iron and sulphur atoms form isolated [Fe2Se6]-anions, consisting of two edge-sharing tetrahedra, with which the sodium atoms build up a three-dimensional arrangement.
Funktionelle Trimethylphosphinderivate, XIII Stabilisierte Carbanionen: Die Molekülstruktur von {[(CH3)3P]3C}I2/Functional Derivatives of Trimethylphosphine, XIII Stabilized Carbanions: The Molecular Structure of {[(CH3)3P]3C}I2
Authors: Zimmer-Gasser Beate , Neugebauer Dietmar , Schubert Ulrich , Karsch Hans H. 
Published: February 2015

Abstract
The title compound crystallizes in the space group Cmc21 with a = 1086(1), b = 1333(1) and c - 1264(1) (Z = 4). The cation exhibits Cs-symmetry with a crystallographic mirror plane perpendicular to the plane of the cation. Thus only two of the three phosphonium groups are stereochemically equivalent. In the planar P3C-moiety the P-C distances are 175 pm, the P-C-P angles 126.5° and 116.7°, respectively.
Metallacycloalkane, III Darstellung und Charakterisierung von a.a′-Dipyridyl-Nickelacyclopentan /Preparation and Characterisation of a,a′-Bipyridyl-nickelacyclopentane
Authors: Binger Paul , Doyle Michael J. , Krüger Carl , Tsay Yi-Hung 
Published: February 2015

Abstract
The title compound was synthesised from bis-1,5-cyclooctadienenickel, a,a′-bipyridyl and 1,4-dibromobutane in 83% yield and its structure determined by X-ray diffraction (a = 16.600, b = 10.837, c = 14.815 Å; β = 153.05°; C2/c, Z = 4; symmetry: C2 with square planar coordinated nickel; Ni-C: 1.949 Å).
a,a′-Bipyridylnickelcyclopentane reacts with maleic anhydride or methylacrylate under reductive elimination to give cyclobutane in 75 and 57% yield; considerable amounts of butenes are formed, in addition to cyclobutane, upon reaction with borontrifluoride-dibutylether or on thermolysis.
Dielectric Measurements and Molecular Structure. Styrene Oxides and Phenylcyclopropanes
Authors: Sorriso Salvatore 
Published: February 2015

Abstract
The effects of electronic structure and conformation of the molecules

(Y = o, m, and p-Cl) and

(Y′ = o, and m-Cl) have been studied in benzene between 10.0 and 70.0 °C. In the oxirane systems the conjugation between the two rings is very small, if present at all; consequently, in the absence of steric and/or electrostatic hindrance internal rotation is observed. In the cyclopropane systems examined these steric effects are sufficiently important to completely immobilise the molecular structure.
Die Synthese eines Cephamderivats mittels Vierkomponenten-Kondensation /The Synthesis of a Cepham Derivative by Four Component Condensation
Authors: Schutz Albrecht , Ugi Ivar , Kabbe Hans-Joachim 
Published: February 2015

Abstract
A five-step synthesis of a cepham derivative from a known, a,β,β-trihydroxyisobutyraldehyde derivative (1) and the sodium thioenolate of C-formyl N-phthaloyl methyl glycinate (2) is described. The key step of the synthesis is a four component condensation.
Notizen: Neue Thiaza-λ5. λ5 -diphosphetidine /New Thiaza-λ5,λ5-diphosphetidines
Authors: Zeiß Werner , Henjes Herbert , Lux Dieter , Schwarz Wolfgang , Hess Heinz 
Published: February 2015

Abstract
A new synthetic route to N-alkyl substituted thiaza- λ5, λ5-diphosphetidines 2a-c is given. NMR spectroscopy shows cis-trans isomerism for 2a and 2b. The crystal structure of trans-2c, the first example of a (P2NS)-four membered ring compound, was determined, exhibiting structural elements from 1 as well as from 3.
Notizen: Darstellung und Eigenschaften von trans-Diiodo-tetrakis(pyridin)osmium(II)/Preparation and Properties of /trans-Diiodo-tetrakis(pyridine)osmium (II)
Authors: Behrensdorf J. , Hasenpusch W. , Preetz W. 
Published: February 2015

Abstract
K2[OsI6] reacts with pyridine and glycerin to give dark red crystals of trans-[OsI2(py)4], soluble in organic solvents, insoluble in water, and sublimable in vacuum at 360 °C. The structure is established by vibrational and mass spectra. From solutions in non-polar solvents with gaseous HX (X = Cl, Br) adducts of type trans-[OsI2(py)4] ·2 HX are precipitated, which are soluble in water with blue colour.
Basic Chromium(III) Carboxylates: Reactions of Chromium(III) Chloride with Some Carboxylic Acids
Authors: Kapoor Ramesh 
Published: February 2015

Abstract
Anhydrous chromium(III) chloride reacts with pure carboxylic acids (RCOOH where R = CH3, C2H5, n-C3H7, CH2Cl, CHCl2 and CCl3) to give basic trinuclear chromium(III) carboxylates of the general formula [Cr3O(OOCR)6]+Cl-. The reaction of CrCl3 with acetic anhydride, however, gives a partially substituted product, CrCl(OOCCH3)2.The formation of basic carboxylates has been attributed to the strong affinity of Cr3+ ions for water that they can abstract it even from pure carboxylic acids. Their addition compounds with ammonia have also been prepared. The compounds have been characterized by their elemental analyses, IR, molar conductance and magnetic measurements.
Darstellung und Struktur der Verbindungen MgCuP, BaCuP(As) und BaAgP(As) / Preparation and Crystal Structure of MgCuP, BaCuP(As), and BaAgP(As)
Authors: Mewis Albrecht 
Published: February 2015

Abstract
The ABX-compounds MgCuP, BaCuP(As) and BaAgP(As) have been prepared and their structures determined. MgCuP crystallizes orthorhombically in an anti-PbCl2-structure (space group Pnma-D16
2h, a = 653.2(1) pm, b - 383.5(1) pm, c = 717.0(1) pm). The compounds BaCuP(As) and BaAgP(As) are isotypic and crystallize in a modified Ni2ln-structure (space group P63/mmc-D4
6h) with the lattice constants:
BaCuP a = 423.9(1) pm, c = 900.6(2) pm,
BaCuAs a = 437.2(1) pm, c = 907.3(2) pm,
BaAgP a = 449.6(1) pm, c = 882.8(2) pm,
BaAgAs a = 461.3(1 )pm, c = 889.6(1) pm.
Beiträge zur Untersuchung anorganischer nichtstöchiometrischer Verbindungen, IXa Elektronenmikroskopische Untersuchungen an Kristallen aus Transportexperimenten -System Nb2O5-WO3 (I) / Contributions to the Study of Inorganic Non-Stoichiometric Compounds, IXa Electron Microscopical Investigations on Crystals Prepared by Chemical Transport in the System Nb2O5-WO3 (I)
Authors: Heurung Günter 
Published: February 2015

Abstract
Compounds near the composition Nb2O5: WO3 ~ 6:1 were prepared by chemical transport (at relatively low temperatures). The block structures of the obtained samples were investigated by high resolution electron microscopy.
Besides unusual defects microdomains were found which still contain edgesharing blocks even at the composition 0/ΣMe = 2.53 to 2.55.
Synthesis of 3-(1-Methyl-5-nitro-2-benzimidazolyl)acrylic Acid Derivatives as Expected Antischistosomal Agents
Authors: Omar Nabil M. , Farag Hassan H. , Omar Farghaly A. 
Published: February 2015

Abstract
Several ester and amide derivatives of 3-(1-methyl-5-nitro-2-benzimidazolyl)acrylic acid have been prepared for testing as potential antischistosomal agents. The starting acid was conveniently synthesized from the corresponding aldehyde derivative through the Knövenagel-Döbner reaction. The utility of EEDQ as a coupler for the synthesis of peptides has been successfully extended to the coupling of N-heterocyclic acrylic acid derivatives and various amines.
Anwendung von 119Sn-FT-NMR bei Austauschreaktionen: [(CH3)2SnS]3 und [(CH3)2SnNC2H5]3 / Application of 119Sn-FT-NMR in Exchange Reactions: [(CH3)2SnS]3 and [(CH3)2SnNC2H5]3
Authors: Wrackmeyer Bernd 
Published: February 2015

Abstract

119Sn-NMR spectra of a 1:1 mixture of [(CH3)2SnS]3 (1) and [(CH3)2SnNC2H5]3 (2) were recorded to demonstrate the utility of 119Sn-FT-NMR in exchange reactions.
Intramolekularer Ringschluß und Umlagerung von Pyridinium-Salzen mit Carboxamidgruppe / Intramolecular Cyclisation and Rearrangement of Pyridinium Salts with Carboxamide Group
Authors: Gündel Wolf-H. 
Published: February 2015

Abstract
In früheren Publikationen hatten wir berichtet, daß quartäre Pyridinium-Salze Carboxamide unter
Kristallstruktur von Mangan(II)sulfit-Trihydrat, α-MnSO3·3H2O / Crystal Structure of Manganese(II)sulfite Trihydrate, α-MnSO3·3H2O
Authors: Engelen B. , Freiburg C. 
Published: February 2015

Abstract
The structure of α-MnSO3·3H2O, space group P21/n, Z = 4, Dm = 2.42, Dx = 2.425gcm-3, a = 6.6501(3), b = 8.9065(4), c = 8.7925(4) Å, β=96.105(3)°, was solved by the Patterson method and refined by Fourier and least-squares methods. All H atoms were located. The final R’s are 2.1/3.2% for the 1749 observed/2280 measured reflexions. Coordination of Mn is octahedral involving O atoms from three water molecules and three different sulfite groups. MnO6 octahedra are linked through sulfite sulfur. The Mn-O distances range from 2.149(2) to 2.314(2) Å. The S-O distances of the sulfite group are 1.529(2), 1.529(2) and 1.544(2) Å. The first two are elongated by one, the latter by two H bonds. The O-S-O angles are 103.25(9), 104.18(9) and 104.35(9)°.
Synthesis and Mesomorphic Properties of New Liquid Crystalline Cyclohexyl-phenyl- and Dicyclohexyl-pyrimidines
Authors: Villiger Alois , Boiler Arthur , Schadt Martin 
Published: February 2015

Abstract
Liquid Crystals, Cyclohexyl-phenyl-pyrimidines, Dicyclohexyl-pyrimidines The synthesis and mesomorphic properties of three new classes of cyano-substituted cyclohexyl-phenyl-and dicyclohexyl-pyrimidines are reported. The compounds are colourless, chemically and photochemically stable and have wide nematic mesophases. The thermal compatibility of the new compounds with other nematic liquid crystals is excellent. The large static positive dielectric anisotropics are shown to depend strongly on the position and number of hydrogenated rings as well as on the alkyl chain lengths within a homologous series. The reported bulk viscosities vary considerably among homologues. Hydrogenating the ring adjacent to the cyano end group causes η to increase, whereas a considerable viscosity reduction compared to nonhydrogenated homologues was found by hydrogenating the ring adjacent to the alkyl end group. The measured refractive indices of the new compounds are comparable to those of biphenyls.
Reaktionen von SbCl5 mit Acetoaeetanilid / Reactions of SbCl5 with Acetoacetanilide
Authors: Dietrich W. , Eisinger H. K. , Latscha H. P. 
Published: February 2015

Abstract
Antimony(V) Chloride, Acetoacetanilide At room temperature acetoacetanilide and antimony(V) chloride form a 1:1-(1) and a 1:2-adduct (2). These adducts react to the heterocycles C10H10Cl4NO2Sb (3) and C10H9Cl5NO2Sb (4). 3 exists in solution in two stereoisomers. The Free Energy of Activation for the transformation of the isomers is estimated.
Zur Reaktion von Trimethylsilyl-difluorophosphat, Trimethylsilyl-dimethylphosphinat und Difluorophosphorsäureanhydrid mit TiCl4 bzw. SbCl5 / On the Reactions of Trimethylsilyl Difluorophosphate, Trimethylsilyl Dimethylphosphinate and Difluorophosphoric Acid Anhydride with TiCl4 and SbCl5, respectively
Authors: Shihada Abdel-Fattah , Mohammed Abdulalah T. 
Published: February 2015

Abstract
TiCl4 reacts with trimethylsilyl difluorophosphate (Me3SiPO2F2) and with trimethylsilyl dimethylphosphinate (Me3SiPO2Me2) at room temperature under cleavage of the Si-O bond to give the principal products Cl2Ti(PO2F2)2 and Cl2Ti(PO2Me2)2, respectively. The former product has also been obtained from the reaction of P2O3F4 with TiCl4-SbCl5 is capable of cleaving the P-O bond in P2O3F4 to give Cl4SbPO2F2, but forms addition compounds with Me3SiPO2F2 and Me3SiPO2Me2 in which the terminal oxygen atoms of the esters are bound to antimony. IR spectra have been used to elucidate the structures of the prepared compounds.
Chemie polyfunktioneller Liganden, 56 [1]. Darstellung von N-Deutero-bis(diphenylphosphino)amin, sowie schwingungsspektroskopischer Vergleich mit Bis(diphenylphosphino)amin und Lithium-bis(diphenylphosphino)amid / Chemistry of Polyfunctional Ligands, 56 [1]. Preparation of N-Deutero-bis(diphenylphosphino)amine, as well as the Vibrational Spectroscopic Comparison with Bis(diphenylphosphino)amine and Lithium-bis(diphenylphosphino)amid
Authors: Eilermann Jochen , Lietz Martin 
Published: February 2015

Abstract
Bis(diphenylphosphino)amine, [(C6H5)P2NH (1), can be metallated with n-butyl-lithium to hthium-bis(diphenylphosphino)amid, [(C6H5)P2NLi (2), It reacts with CH3OD to give N-Deutero-bis(diphenylphosphino)amine, [(C6H5)P2ND (3). The compounds were characterized by infrared, Raman, 1H and 31P NMR spectroscopy.
Reaktionen von Dicarbonyl (η-cyclopentadienyl)(propiolsäuremethylester)niangan(I) mit Basen. Isolierung von Vinyliden- und Carbenkomplexen / Reactions of Dicarbonyl(η-cyclopentadienyl)(methylpropiolate)manganese(I) with Bases The Isolation of Vinylidene and Carbene Complexes
Authors: Berke Heinz 
Published: February 2015

Abstract
Reaction of dicarbonyl(η-cyclopentadienyl)(methylpropiolate)manganese(I) with various stoichiometric quantities of tert-butyl lithium and subsequent addition of HCl or CH3OSO2F allows the isolation of vinylidene complexes of the general type CpMn(CO)2=C=CR1R2 R1=H, CH3; R2 = COOCH3, COt-Bu, COH(t-Bu)2). The compound with R1=H, R2=COOCH3 adds another CpMn(CO)2 fragment, with formation of a bridged vinylidene species with a Cp2Mn2(CO)4 unit. The reaction with amide or methoxide leads to the formation of carbene complexes CpMn(CO)2 = C(R1)CH2-COOCH3 (Rx = NH2, OCH3).
BaSbTe3 und BaBiSe3 Verbindungen mit BiSe-bzw. SbTe-Schichtverbänden / BaSbTe3 and BaBiSe3 Compounds with BiSe-or SbTe-Layer Structures, Respectively
Authors: Volk Klaus , Cordier Gerhard , Cook Ralph , Schäfer Herbert 
Published: February 2015

Abstract
The new compounds BaBiSe3 and BaSbTe3 crystallize in the orthorhombic system, space group P212121 with
BaBiSe3: a = 1724 ± 2 pm, b = 1600 ± 2 pm, c = 437.0 ± 0.5 pm;
BaSbTe3: a = 1809 ± 2 pm, b = 1694 ± 2 pm, c = 463.5 ± 0.4 pm.
BiSe6
- or SbTe6
- octahedra, resp., are connected by common edges to fourfold strings. These are bound by additional chalcogen atoms to sheets, between which the Ba ions are located.
Die Struktur des Rubidiumtrimolybdathydrats Rb2Mo3O10 · H2O / The Structure of the Rubidiumtrimolybdate Hydrate Rb2Mo3O10 · H2O
Authors: Kreusler Hans-Ulrich , Förster Achim , Fuchs Joachim 
Published: February 2015

Abstract
For the first time single crystals of trimolybdate were obtained through a slow trans-formation of the primary precipitate in a slightly acidified solution of rubidium molybdate at a temperature of 70 °C.
A structural analysis of Rb2Mo3O10 · H2O revealed that the anion forms a chain with a hexameric identity period built up from MoO6 octahedra. Each Mo atom is bonded with two terminal oxygen atoms. The anion doesn't contain OH groups.
Massenspektrometrische Untersuchungen an Borchelaten, V [1] Fragmentierung borhaltiger aromatischer Azoverbindungen / Mass Spectrometric Investigation of Boron Chelates, V [1]Fragmentation of Aromatic Azo Compounds Containing Boron
Authors: Hohaus Eberhard , Riepe Wolfgang , Wessendorf Klaus 
Published: February 2015

Differing fragmentation of boron chelates of aromatic azo compounds confirms the structural formulae 1a-7c, presented in [2].
More significant differences are caused by the substituent of the boron R (F instead of C6H5).
Although certain rules can be deduced by the substitution of F for CeHs with regard to the change in intensity of the ions M+, M+-R (and others), in some cases the stable aromatic azo system causes a significant change in the fragmentation as compared with that of azomethine chelates. The chelates 7 eliminate “RH” and show no molecular ion. Apparently a second chelate ring is closed before further fragmentation can start. Fragmentation of 7 a and b is analogous to 5.
Oxotitanate mit gemischter Valenz, III Zur Kenntnis von BaTi8O16 / Oxotitanates with Mixed Valence, III About BaTi8O16
Authors: Schmachtel J. , Buschbaum Hk. Müller- 
Published: February 2015

The hitherto unknown compound BaTi8O16 was prepared by heating a mixture of BaO:TiO2 = 1:4 in a vacuum furnace to 1400 °C (Ti crucible).
Single crystal X-ray investigations show monoclinic symmetry (a = 1420,9, b = 297,1, c = 998,1 pm, β = 133,50°; space group C2
3-C2). The crystal structure was found to be isotypic to α-MnO2.
Untersuchungen an quartären Pyridiniumsalzen, X [1] Eine Kondensationsreaktion von 3-Cyanpyridiniumsalzen bei Einwirkung A Condensation Reaction of 3-Cyanopyridinium Salts on Addition of Alcoxides
Authors: Gündel Wolf-H. 
Published: February 2015

Abstract
1-Benzyl-3-cyanopyridinium salts, in the benzyl moiety differently substituted, react in boiling alcohol with alcoxides to derivatives of hexahydro-dipyrido[l,2-a:3',2'-c]-pyrrole. At 20 °C occurs rearrangement to derivatives of 2-amino-3-pyridinecarbaldehyde.