bluuebunny/crossref_metadata_2025_split huggingface dataset:
Anhydrous Chromium(III) Carboxylates: Reactions of CrO3 with Carboxylic Acid Anhydrides
Authors: Kapoor Ramesh , Sharma Ramneek 
Published: February 2015

Abstract
Chromium(VI) oxide reacts with excess of carboxylic acid anhydrides [(RCO)2O where R = CH3, C2H5, n-C3H7 and CHCl2] to give pure chromium(III) carboxylates. Their IR and 1H NMR spectra suggest the presence of two different types of carboxylate groups. Magnetic susceptibility and absorption spectra favour an octahedral geometry around Cr.
Gold(I)-Bis(diphenylphosphino)amid und einige Gold(I)-Bis(diarylphosphino)methanide mit sterisch anspruchsvollen Arylsubstituenten / Gold(I)-bis(diphenylphosphino)amide and Some Gold(I)-bis(diarylphosphino)methanides with Bulkyl Aryl Substituents
Authors: Schmidbaur Hubert , Schnatterer Stefan , Dash Kailash C. , Aly Aref A. M. 
Published: February 2015

Intensely yellow coloured, insoluble gold(I)-bis(diarylphosphino)amides, [(C6H5)P2NAu, 1, is obtained from lithiated bis(diphenylphosphino)amine and AuCl complexes of tertiary phosphines. 1 is assigned a dimeric eightmembered ring structure on the basis of its 197Au-Mößbauer spectrum and of a direct analogy with the corresponding bis(phosphino)methanide complexes, whose structure has recently been confirmed by X-ray diffraction.
A series of mono- and binuclear AuCl complexes of bis(diarylphosphino)methanes bearing bulky 2-tolyl or 2,6-dimethylphenyl substituents (3a, b) was synthesized from the diphosphines and (CO)AuCl in the molar ratios 1:2 or 1:1. The compounds have structures 4 a, b and oa, b, respectively. An ionic tetrafluoroborate derivative 6 b was obtained from the chloride 5 b on treatment with AgBF4. Lithiation of the diphosphinomethanes 3 a, b using LiCH3 followed by reaction with CIAuPR3 complexes yields the deep-yellow Au(I) bis(diarylphosphino)methanides 7 a, b. All compounds, including the new ligand 3b and its precursor (2,6-(CH3)2C6H3)2PBr, 2, were characterized by analytical and spectroscopic data.
Übergangsmetallketen-Verbindungen, XII [1] Darstellung und Struktur von η5-C5H5(CO)2 [P(CH3)3]W-C≡C-C3H5 / Compounds of Transition Metal Ketenes, XII [1] Synthesis and Structure of η5-C5H5(CO)2 [P(CH3)3]W-C≡C-C3H5
Authors: Sieber Werner , Wolfgruber Mathias , Neugebauer Dietmar , Orama Olli , Kreißl Fritz R. 
Published: February 2015

Abstract
Dicarbonyl(η5-cyclopentadienyl)(η1 -cyclopropylketenyl)(trimethylphosphane)tungsten reacts with carbon monoxide under reduction of the ketene moiety forming a (σ-bonded acetylene compound. Reaction conditions, spectroscopic data and the X-ray structure of the new compound are reported.
Oxamidoximkomplexe des Kupfers: Monomeres Chloro(oxamidoximato)(oxamidoxim)kupfer(II) und polymeres Dichloro(oxamidoxim)kupfer(II). Strukturen und EPR spektroskopische Eigenschaften / Oxamide Oxime Complexes of Copper(II): Monomeric Chloro(oxamidoximato)(oxamidoxim)copper(II) and Polymerie Dichloro(oxamidoxim)copper(II). Structures and EPR Spectroscopic Properties
Authors: Endres Helmut , Gene Nihat , Nöthe Dietrich 
Published: February 2015

Abstract
CU(C2H6N4O2)(C2H5N4O2)Cl (1) crystallizes in the monoclinic space group P21/c, a = 8.191(4), b = 10.746(3), c = 13.340(7) Å, β = 104.94(4)°, V = 1134.5 A 3 , Z = 4, dc = 1.96 gem -3 , final Rw = 0.029 for 1785 reflections. In the monomeric complex molecules Cu is coordinated in the shape of a square pyramid with Cl at the apex. In the basal plane only one intramolecular H bridge exists. Cu(C2HeN4O2)Cl2 (2), crystallizes in the monoclinic space group Pc, a = 7.708(7), b = 3.751(1), c= 13.377(12) Å, β = 105.97(4)°, V = 371.8 Å3 , Z = 2, dc = 2.25 gcm-3 , final Rw - 0.070 for 903 reflections. The stacking of the nearly planar complex units along b leads to a polymeric structure where Cu is additionally coordinated by a Cl atom, and shows a loose interaction with an oxime N atom of an adjacent monomer. The EPR signal intensity shows Curie-Weiss behaviour in the temperature range 110 K-420 K.
Simple Syntheses of 3-Substituted Indoles and their Application for High Yield 14C-Labelling
Authors: Schallenberg Jürgen , Meyer Eckart 
Published: February 2015

Abstract
Methods are described which allow the synthesis of several plant indole alkaloids and their metabolites at different scales. Compounds synthesized include gramine (1) (3-di-methylaminomethylindole) which is directly derived from indole, while its biosynthetic precursors 3-aminomethylindole (3) and 3-methylaminomethylindole (2) as well as indole-3-carboxylic acid (7) are synthesized via indole-3-aldehyde (6). Slight changes of the experimental conditions allow syntheses with high yields not only at the molar but also at the μmolar level. This is extremely useful when isotope labelled compounds of high specific radioactivity are required for studies of plant metabolism.
Bis(trimethylsiloxy)zinn(II): Ein Heterosiloxan als weicher Ligand / Bis(trimethylsiloxy)tin(II): A Heterosiloxane as Soft Ligand
Authors: Mont Wolf-Walther du , Grenz Mario 
Published: February 2015

Abstract
Contrary to earlier reports the reaction of sodium trimethylsilanolate with stannous chloride does not yield bis(trimethylsiloxy)tin(II) (1) but a polynuclear compound of the type Sn2O(OSiMe3)2 (2). 1 is obtained from the reaction of stannocene with trimethylsilanole. The compound is a dimer that gives rapid exchange reactions of terminal and bridging trimethylsiloxy groups in inert organic solvents.
C-13 NMR of Hecubine and Voaphylline, and a Study of Mass Spectral Fragmentation of Hecubine by Linked Scan Measurements
Authors: Rahman Atta-ur , Daulatabadi Nader , Smith D. 
Published: February 2015

Abstract
The C-13 NMR of hecubine and voaphylline are reported. The mass spectrum of hecubine has been studied by high resolution mass measurements, and the fragmentation patterns fol-lowed by a study of metastable ion transitions as determined by linked scan measurements.
Beiträge zur Chemie des Phosphors, 124 Tri-tert-butyl-diphosphastiba-cyclopropan, (t-BuP)2Sb(t-Bu)/Contributions to the Chemistry of Phosphorus, 124 Tri-tert-butyl-diphosphastiba-cyclopropane, (t-BuP)2Sb(t-Bu)
Authors: Baudler Marianne , Klautke Siegfried 
Published: February 2015

Abstract
The first three-membered P2Sb heterocycle, tri-tert-butyl-diphosphastiba-cyclopropane (tri-tert-butyl-diphosphastibirane) (1) was synthesized by [2+1] cyclocondensation of K(t-Bu)P-P(t-Bu)K with t-BuSbCl2 in n-pentane at -78 °C. Tetra-tert-butyl-1,2-diphospha- 3,4-distiba-cyclobutane (2), tetra-tert-butyl-triphosphastibacyclobutane (3) as well as (t-BuP)4 and five-membered cyclostibaphosphanes are also formed. Because of its hyperreactivity, 1 could not be isolated in a pure state. It forms two diastereomers, of which the isomer with trans-oriented tert-butyl groups at the phosphorus atoms is the more stable one. The 31P NMR parameters of the four-membered cyclostibaphosphanes 2 and 3 are reported.
Oxidationsreaktionen von Phosphanen mit Schwefeldioxid/Oxidation Reactions of Phosphanes with Sulfur Dioxide
Authors: Roesky Herbert W. , Djarrah Habib , Thomas Manfred , Krebs Berat , Henkel Gerald 
Published: February 2015

Abstract
Sulfur dioxide can be used as an oxidizer in the reaction of Zn(SO2)n(AsF6)2 and tetraphenyldiphosphane. The resulting product is the tetraphenyldiphosphane dioxide complex of composition Zn[O2P2(C6H5)4]3(AsF6)2 (1)-The same compound is formed by the direct reaction of the zinc salt with O2P2(C6H5)4.When Zn(S02)n(AsF6)2 is treated with P[O = P(OC2H5)2]3 in liquid SO2, Zn{P[O = P(OC2H5)2]3}2(AsF6)2 (2) is formed. The structure of 2 was investigated by means of an X-ray single crystal analysis. 2 crystallizes in space group P3̄1 c with a = b= 11.967(3) and c = 21.202(4) Å.
P[O = P(OC2H5)2]3 and (CO)4W(CH3CN)2 react to form (CO)4WP[O = P(OC2H5)2]3CH3CN.Only one acetonitrile molecule is replaced by the phosphane.
Darstellung und Kristallstrukturen einiger MSb5O13-Verbindungen (M = H3O, Na, K)/Preparation and Crystal Structure of Some MSb5O13 Compounds (M = H3O, Na, K)
Authors: Bodenstein Doris , Clegg William , Jäger Gerhard , Jones Peter G. , Rumpel Horst , Schwarzmann Einhard , Sheldrick George M. 
Published: February 2015

Abstract
Crystal Structure, Antimonate(V) The compounds MSbsOi3 (M = H3O, Na, K) have been prepared and characterised by chemical analysis and X-ray structure determination. They are isostructural, space group Cmem, with a = 657.7(2), 657.3(2), 658.4(2); b = 887.3(3), 888.7(2), 888.2(2); c = 1682.6(5), 1651.5(3), 1677.0(3) pm for M = H30, Na, K, respectively. The polymeric structures consist of SbOß octahedra linked via edges and vertices to form an Sb50i3 framework, in which the univalent cations occupy holes. Because these ions display severe disorder, X-ray methods alone would not be sufficient to establish the chemical constitutions.
Cs6Ga2Se6, ein ternäres Selenogallat(III) mit isolierten [Ga2Se6]6--Ionen/Cs6Ga2Se6, a Ternary Selenogallate(III) with Isolated [Ga2Se6]6- Ions
Authors: Deiseroth Hans-Jörg , Fu-Son Han 
Published: February 2015

Abstract
Cs6Ga2Se6 can be prepared from mixtures of Cs2Se and Ga2Se3. The transparent single crystals of the moisture sensitive compound (m.p. 685 °C) crystallize in the monoclinic system with a = 848.0(5), b = 1364.4(5), c = 1111.5(5) pm, β = 126.22(5)° (T = -150 °C, Z = 2, space group P21/c). The gallium atoms pairwisely occupy selected tetrahedral holes between layers formed by the cesium and selenium ions. This structural principle leads to the formation of double tetrahedral isolated [Ga2Se6] 6- ions.
Die Schwingungsfeinstruktur der elektronischen Absorptionsspektren von [OsO2(ox)2]2 -und [OsO2(mal)2]2-/ Vibrational Fine Structure on the Electronic Absorption Spectra of [OsO2(ox)2]2-and [OsO2(mal)2]2-
Authors: Preetz W. , Schulz H. 
Published: February 2015

Abstract
The complexes (TBA)2[OsO2(ox)2] and (TBA)2[OsO2(mal)2] have been prepared and characterized. The IR and Raman frequencies are assigned according to point group D2h. The electronic absorption spectra measured on thin films of the solid complex salts on silica discs at 10 K show well resolved vibrational fine structure. Two very weak bands (ε: 4-58) in the visible region are assigned to d-d transitions from the singlet ground state ag2 (dxy) to a triplet and singlet term of the equivalent π* orbitals b2g/b3g (dxz, dyz). The two more intense band systems (ε: 500-1500) in the UV region are attributed to CT transitions from b2u/b3u π orbitals of the oxo ligands to the lowest unoccupied orbitals b2g/b3g of the central ion. These electronic transitions couple with vs(Os = O) as indicated by the main progression of about 700 cm-1 . In comparison to the vibrational ground state this lowered frequency is caused by population of antibonding π levels. The loosening of the Os = O bonds in the excited state is demonstrated by high anharmonic constants (-2.5 to -10.5 cm-1) and the estimated bond lengthening of about 12 pm. Moreover the vibrational fine structure of the malonato complex shows many combination modes of vs(Os = O) with other symmetric fundamentals. Due to lower site symmetry in the solid state the CT transitions of the malonato compound are split into 2 components with a spacing of about 200 cm-1 .
2.2.5.5-Tetraorganyl-1.4-dioxa-2.5-disilacyclohexane/2,2,5,5-Tetraorganyl-1,4-dioxa-2,5-disilacyclohexanes
Authors: Tacke Reinhold , Lange Hartwig , Bentlage Anke , Sheldrick William S. , Ernst Ludger 
Published: February 2015

Abstract
The 2,2,5,5-tetraorganyl-1,4-dioxa-2,5-disilacyclohexanes 2a-2c were prepared by condensation of the corresponding (hydroxymethyl)diorganylsilanes 1 a-1 c. The constitution of the heterocycles was confirmed by elemental analyses, cryoscopic measurements, mass spectrometry, and NMR-spectroscopic (1H, 13C) investigations. The molecular structure of 2 b was determined by X-ray diffraction analysis.
Die Reaktion zwischen Schwefel bzw. Kohlenstoflfdisulfid und Natriumboranat in Aminen. Zwei neue Darstellungsmethoden für Alkylaminborane, R3-nHnN-BH3/The Reaction between Sulfur or Carbon Disulfide Respectively, and Sodium Borohydride in Amines Two New Methods for the Preparation of Alkylamine Boranes, R3-nHnN-BH3
Authors: Binder Herbert , Diamantikos Wassilios 
Published: February 2015

Abstract
Sodium borohydride reacts with sulfur in ammonia, primary, secondary or tertiary amines with hydrogen evolution to give the corresponding amine boranes, R3-nHnN-BH3. The reaction of sodium borohydride with carbon disulfide in the presence of a tertiary amine yields compounds R3N-BH3. The formulation of these reactions has been established by 11B and 1H NMR.
Kristallstruktur von Pyrrolidinium-bis(diisopropylphosphinoyl)phosphid, einem System mit zweifach koordiniertem Phosphor /Crystal Structure of Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide, a System with Bicoordinated Phosphorus
Authors: Weber Dieter , Peters Karl , Schnering Hans Georg von , Fluck Ekkehard 
Published: February 2015

Abstract
Pyrrolidinium-bis(diisopropylphosphinoyl)phosphide crystallizes triclinically in the space group P1̄ with a = 1019.6(8), b = 1271.5(4), c = 999.5(7) pm, a = 100.90(5)°, β = 91.24(5)°, γ = 99.10(5)° and Z = 2 formula units. The mean P-P bond length is 212.2 pm and hence shorter than in derivates in which the electron pairs of the bicoordinated phosphorus atom are bonded to one or two M(CO)5-groups. Additional pπ-dπ bonding explains the shortening of the P-P bond.
Untersuchungen zur reduktiven Eliminierung des Biphenyl-Systems aus substituierten cis-Bis(phenyl)bis(triphenylphosphan)platin(II)-Verbindungen/On the Reductive Elimination of the Biphenyl System from Substituted cis-Bis(phenyl)bis(triphenylphosphane)platinum(II) Compounds
Authors: Bayer Ulrich , Brune Hans Albert 
Published: February 2015

Abstract
The Compounds cis-[Pt(PPh3)2(4-X-C6H4)2] [X = F, Cl, CF3, OCH3, N(CH3)2] and cis-[Pt(PPh3)2(4-X-C6H4)(Y-C6H4)] [X = F/Y = 3 Cl, 4-C1, 3-CH3O, 4-CH3O; X = CF3/Y = 3-F, 4-F] have been synthesized and studied thermally with respect to the reductive elimination of disubstituted biphenyls. Activation parameters ⊿H≠ and ⊿ S≠ are reported and discussed.
Synthese und pharmakologische Eigenschaften von silylierten Dopaminen und 4.4-Diphenylpiperidinen/Synthesis and Pharmacological Properties of Silylated Dopamines and 4,4-Diphenylpiperidines
Authors: Gerlach Manfred , Jutzi Peter , Stasch Johannes-Peter , Przuntek Horst 
Published: February 2015

Abstract
Syntheses for the bis-O-trimethylsilylated (2), the tris-O,O,N-trimethylsilylated (3) and the tetrakis-O,O,N,N-trimethylsilylated dopamine (4) are described. The preparation of some N-trialkylsilylated 4,4-diphenylpiperidines 6-8 and of the N-triphenylsilylated piperidine 9 is also reported. The silylation of these neuropharmaca enhances their lipophilic character. Preliminary pharmacological investigations show the desired central effect of these compounds. The silylated dopamines 3 and 4 influence positively the rigid akinetic syndrom, which was induced by reserpine. The silylated 4,4-diphenylpiperidines 6-9 show the same effect on the content of neurotransmitters in the rat brain as the Antiparkinson drug 1-tert-butyl-4,4-diphenylpiperidine (budipine).
Two New Reagents for the Fluorescence Derivatization of NH and OH Containing Compounds
Authors: Wintersteiger Reinhold , Wolfbeis Otto S. 
Published: February 2015

Abstract
The synthesis of three new reagents, namely the bromomethyl derivatives of a pyrano-[3,2-c]benzopyran (2b) and of 11H-pyrido[1,2-b]quinazolin-11-one (3b, d) is described. Introduction of the reactive bromomethyl group was accomplished in one case (2 b) by a ring closure reaction using ethyl y-chloroacetoacetate, and in the other cases (3 b, d) by bromination of a methyl group using N-bromosuccinimide. 2 b is suitable for the derivatization of barbiturates, whilst 3d reacts with oxygen nucleophiles like alcohols, phenols or carboxylates.
Fluoreszenz und Struktur von Flavonen, II Der Einfluß von Hydroxygruppen in 6-, 8-und 2′-Stellung*/Fluorescence and Structure of Flavones, II The Influence of Hydroxy Groups at Positions 6, 8 and 2′*
Authors: Geiger Hans , Homberg Harald 
Published: February 2015

Abstract
The fluorescence spectra of various 2′-, 6-and 8-hydroxy-, methoxy-, and glucosyloxy-flavones adsorbed on cellulose alone and with added shift reagents are reported. The correlation between fluorescence and structure of these compounds is discussed.
Angriff eines lithiierten Aminofluorsilans auf die C-O-Bindung des Cr(CO)6; Bildung von Isonitrilkomplexen/Attack by a Lithiated Aminofluorosilane on the C - O Bond of Cr(CO)6; Formation of Isonitrile Complexes
Authors: Clegg William , Klingebiel Uwe , Sheldrick George M. 
Published: February 2015

Abstract
The photochemical reaction of a lithiated aminofluorosilane with Cr(CO)6 leads to substitution of one or two carbonyl oxygen atoms and formation of isonitrile complexes. The crystal structure of the disubstituted product, cis-di(tert-butylisonitrile) tetracarbonylchromium, has been determined.
Komplexe des Cu(I), Ag(I) und Rh(III) mit Nitronylnitroxylradikalliganden/Complexes of Cu(I), Ag(I) and Rh(III) with Nitronylnitroxylradicals as Ligands
Authors: Dorfer Astrid , Schwarzhans Karl E. 
Published: February 2015

Abstract
The stable free radical 4,4,5,5-tetramethyl-imidazoline-1-oxyl-2-p-pyridyl-3-oxide (L1) has been prepared and used as a ligand in copper (I), silver(I) and rhodium(III) complexes, the meta isomer (L2) as a ligand in a rhodium(III) complex, too. The magnetic moments and the EPR spectra of the free radicals and the complexes have been investigated. A solvent and temperature dependent intramolecular interaction between the radicalic ligands was found in the silver(I) complex, but in none of the complexes any intramolecular interaction between the metal ions and the unpaired electrons of the ligands could be observed.
Alternativ-Liganden, XV [1]. Neue Liganden des Typs (4-XC6H4)SiMe(EMe2)CH2CH2E′Me2 (E, E′ = N, P, As; X = Cl, F; Me = CH3) / Alternative Ligands, XV [1]. Novel Ligands of the Type (4-XC6H4)SiMe(EMe2)CH2CH2E′Me2 (E, E′ = N, P, As; X = Cl, F; Me = CH3)
Authors: Aslanidis Paraskevas , Grobe Joseph 
Published: February 2015

Starting from Cl2Si(Me)CH = CH2 (1) the title compounds are obtained by two different routes:
a) Ligands with E = N and E' = N, P, As are prepared by aminolysis of 1 yielding Cl(Me2N)Si(Me)CH = CH2 (2) followed by SiCl-substitution with (4-ClC6H4)MgCl (3). Photochemical or base catalyzed addition of HE'Me2 (E' = N, P, As) to the vinyl group of (4-ClC6H4)SiMe(NMe2)CH = CH2 (4) produces the corresponding ligands 5 to 7 (Abb. 2). Cleavage of the SiN bond in 7 leads to (4-ClC6H4)SiMe(Cl)CH2CH2NMe2 (8) which on substitution with LiEMe2 (E = P, As) gives the ligands 9 and 10.
b) Ligands with E, E' = P, As are obtained by first introducing the aryl substituent to yield (4-ClC6H4)SiMe(Cl)CH = CH2 (11) which by photochemical addition of HE'Me2 (E' = P, As) gives the semi-ligands 12 and 13. Replacement of SiCl by SiEMe2 (E = P, As) with LiEMe2 affords compounds 14 to 17 (Abb. 3). - Some representative ligands with p-fluorophenyl groups (19, 20, 24, 25) are prepared by similar procedures (Abb. 4). New compounds are characterized by spectroscopic methods (IR, NMR, MS).
Darstellung and Kristallstruktur von [(C6H5)4As]2M(NO3)5 (M = Ho, Er, Tm, Yb) / Preparation and Crystal Structure of [(C6H5)4As]2M(NO3)5 (M = Ho, Er, Tm, Yb)
Authors: Urland W. , Warkentin E. 
Published: February 2015

Abstract
The compounds [(C6H5)4As]2M(NO3)5 (M = Ho, Er, Tm, Yb) were prepared and investigated by X-ray diffraction. It has been found that they are isotypic with [(C6H5)4As]2Eu(NO3)5. The structure was refined by single crystal data for [(C6H5)4As]2Er(NO3)5.
Bor- und Arsen-methoxotetrafluorotellurate(VI) / Boron and Arsenic Methoxotetrafluorotellurates(VI)
Authors: Tötsch Walter , Aichinger Heinrich , Sladky Fritz 
Published: February 2015

Abstract
The interaction of cis-and trans-HOTeF4OCH3 with BCl3 yields B(cis-and trans-OTeF4OCH3)3. The ability of these compounds to transfer the CH3OTeF4O entities has been demonstrated in reactions with AsF3, with the formation of As (cis-and trans-OTeF4OCH3)3 respectively. All compounds have been characterized by NMR spectroscopy (125Te, 19F, 11B, 1H).
Molekülstrukturen, Schwingungsspektren und Konformation der Thiooxalsäurederivate CH3S-CO-CONH2, CH3S-CS-CONH2, C2H5O-CO-CSNH2 und K[OSC-CONH2] / Molecular Structure, Vibrational Spectra and Conformation of the Thiooxalic Acid Derivatives CH3S-CO-CONH2, CH3S-CS-CONH2, C2H5O-CO-CSNH2 and K[OSC-CONH2]
Authors: Mattes Rainer , Waldmann Franz 
Published: February 2015

Abstract
The crystal structures of CH3S-CO-CONH2 (1), CH3S-CS-CONH2 (2), C2H5O-CO-CSNH2 (3) and K[OSC-CONH2] (4) have been determined by single crystal X-ray diffraction. The molecules 1, 2 and 3 are nearly planar and form centrosymmetric dimers by N H···O or N-H···S hydrogen bonds with the amidic oxygen or sulfur atom as acceptor atoms. The anion of 4 is not quite planar. The torsional angle around the C-C bond is 18.4°. The conformations of the title compounds are E, Z' (1 and 2), Z, Z' (3) and Z (4). According to the vibrational spectra, which are discussed briefly, 1 and 3 retain their conformation also in solution.
Deprotonated Complexes of Bis(o-aminobenzenesulfonyl)ethylenediamine with Mn(II), Co(II), Ni(II) and Cu(II)
Authors: Perlepes S. P. , Zafiropoulos Th. F. , Galinos A. G. , Tsangaris J. M. 
Published: February 2015

Abstract
The new complexes K2[ML2] (M = ═Mn, Cu), K2[ML2(H2O)2] (M = Co, Ni), K2[Cu2L2(OH)2] and K2[Cu2L2(OH)2(H2O)4], where LH2 = Bis(o-aminobenzenesulfonyl)ethylenediamine, have been prepared. Properties, X-ray powder patterns, molar conductance measurements, magnetic moments and spectral (IR, diffuse reflectance, visible in solution) data are discussed in terms of possible structural types and the nature of the bonding.
Distorted octahedral geometries are proposed for the Mn(II), Co(II), Ni(II) and dimeric Cu(II) chelates in the solid state, while K2[CuL2] appears to have a distorted tetrahedral structure. The Mn(II) complex exhibits evidence of a polymeric configuration. The L 2- anion acts as a bidentate N2 or tetradentate N4 ligand.
Reaktionen von S-Methylthiireniumsalzen mit nucleophilen Übergangsmetall-Komplexen [1] / Reactions of S-Methylthiirenium Salts with Nucleophilic Transition Metal Complexes [1]
Authors: Götzfried Franz , Beck Wolfgang 
Published: February 2015

Abstract 1
-Methyl-2,3-di-t-butyl-thiirenium-tetrafluoroborate (1) reacts with K + [π-C5H5(CO)3Mo] and (PPh3)4Pt to give [(π-C5H5)(CO)2MoSCH3]2 and [(Ph3P)3PtSCH3]+BF4
-, respectively. With 1 and (Ph3P)4Pd the phosphonium salt [Ph3PSCH3]+BF4-has been isolated.
Derivate des 1.3-BenzdioxoIs, 48 [1]. Darstellung und Reaktionen von substituierten 1.3-Benzdioxol-4.7-cliinonen / Derivatives of 1,3-Benzdioxoles, 48 [1]. Preparation and Reactions of 1,3-Benzdioxole-4,7-quinones
Authors: Dallacker Franz , Holtmann Bodo , Coerver Wim 
Published: February 2015

We describe the preparation of a substituted 1,3-benzdioxole-4,7-quinonecomplex (2) by reaction of 4-hydroxy-1,3-benzdioxole (1) with potassiumnitrosodisulfonate.
The quinones 4a-d can be obtained by treatment of the 4-hydroxy-7-methoxy-1,3-benzdioxoles 3 a-d with ammoniumcerium(IV)nitrate. Reaction of 2 with several cyclophiles gives the addition compounds resp. the dehydrogenation-products 6b-d in partly high yields.
NOTIZEN. Darstellung und Struktur von Ba6Sn2P6 / Preparation and Crystal Structure of Ba6Sn2P6
Authors: Eisenmann Brigitte , Jordan Hanna , Schäfer Herbert 
Published: February 2015

Abstract
The new compound Ba6Sn2P6 crystallizes in the monoclinic system, space group P21/c with lattice constants
a = 883.7 ± 0.5 pm
b = 1268.8 ± 0.8 pm
c= 862.3 ± 0.5 pm
β = 114.42 ± 0.10°.
The compound is isotypic to K6Sn2Te6 and contains the Sn2P6
12- -anions which are isosteric with the Sn2Te6
6- -units.