bluuebunny/crossref_metadata_2025_split huggingface dataset:
Quantitative Treatment of the Function of Plastoquinone in Photosynthesis
Authors: Stiehl H. H. , Witt H. T. 
Published: March 2015

I. The function of plastoquinone PQ in photosynthesis has been measured by absorption changes in the UV at 265 nm. These measurements have been refined by the application of the very sensitive repetitive pulse technique. The reduction and oxidation of plastoquinone in chloroplasts have been measured 1. in short flashes, 2. in long flashes and 3. in double flashes. The results can be described by the empirical equations 1 — 13.
II. A molecular mechanism for these reactions of plastoquinone is presented. Two electron chains are arranged parallel to each other in such a way that two chlorophyll-aII are in contact with a twin of PQ-PQ (see fig. 12).
Firstly, plastoquinone is reduced by chlorophyll-aII into PQ-— —PQ-. Secondly, the semiquinone PQ- — PQ- dimutates in a first-order reaction into PQ= and PQ. Thirdly, the free diffusion within the plastoquinone pool results at light reaction I in a conmutation of PQ=+PQ into two single PQ- molecules. These are oxidized via intermediates (cytochrome-f etc.) by chlorophyll-a1+. The conmutation is the rate limiting step of the overall reaction.
III. The theoretical treatment of the postulated molecular mechanism in II results in equations 14 — 31. These equations agree quantitatively with the experimental equations 1 — 13.
The postulated semiquinone twin PQ- — PQ- has been attributed to the as yet chemically unknown substance X-320 with absorption changes in the UV at 320 nm.
The reaction mechanism of PQ regulates the kinetics and reaction patterns of the whole electron transfer system from H2O to the endstanding electron acceptor.
The rate of reduction of the electron acceptor ferricyanide and the rate of O2-production from H2O have been calculated from the PQ-mechanism. These rates are in quantitative accordance with the measured rates of ferricyanide reduction and O2-production.
Metallkomplexe mit polymeren Liganden, V / Metal Complexes with Polymeric Ligands, V
Authors: Biedermann Hans-G. , Graf Wolfgang 
Published: March 2015

Poly-1-vinyl-2-pyrrolidinone of various molecular weight forms with transition metal chlorides in specific mixtures of solvents the following complexes: [Me(II)Cl2(C6H9NO)2]100, [NiCl2(C6H9NO)1]100, [Co(C6H9NO)2]n, Me = Fe, Co, Ni, Cu, Zn, n = 220, 360, 6300.
The IR spectra and electrical conductivity measurements are discussed.
Molekül- und Kristallstruktur von C7H7Mo(CO)2-SnCl3 / The Crystal Structure of C7H7Mo(CO)2-SnCl3
Authors: Ziegler M. L. , Sasse H.-E. , Nuber B. 
Published: March 2015

The structure of the title compound has been determined from three dimensional X-ray data by Patterson and Fourier methods. The crystals are orthorombic, with unit cell dimensions a = 1181,50 pm, b = 943,68 pm, c = 1181,50 pm, space group D2h
16 and Z = 4. Least squares refinement, by use of 1540 independent reflections measured on a diffractometer has reached R = 5,9%.
There are discrete C7H7Mo(CO)2 SnCl3 molecules, the molybdenum-tin bond has been dicussed together with the corresponding bonds in other C7H7Mo(CO)2 SnR3 compounds.
Übergangsmetall-substituierte VB Elementsysteme, 7.
Authors: Malisch Wolfgang , Panster Peter 
Published: March 2015

The reaction of SbBr3 with the complex metal carbonyl anions [π-C5H6(CO)3M]Na (M = Mo, W) leads to the formation of transition metal antimony bromides π-C5H5(CO)3M-Sb̅-Br2, which can be further metallated, yielding the stable species
[XXX]
All bromine substituted transition metal stibines prove to be excellent coordinating ligands and can easily be introduced into activated metal carbonyls. The interaction of π-C5H5(CO)3M-Sb̅Br2, with bromine results in a quantitative Sb-M bond cleavage, presumably via primary formation of pentavalent intermediates. All new compounds are fully characterized by means of IR, 1H NMR and mass spectroscopy.
Spektroskopische Untersuchungen in der Festkörperchemie, X Re–NQR-Untersuchungen an TlReO4 und LiReO4 · 2 H2O / Spectroscopic Investigations in the Solid State Chemistry, X Re-NQR Investigations on TlReO4 and LiReO4 · 2 H2O
Authors: Burkert Paul K. , M. Hutter Frank 
Published: March 2015

The 187Re–NQR transitions of TlReO4 and their temperature dependencies were measured. In the temperature range, in which TlReO4 is crystallizing in pseudo scheelite structure, one obtains normal temperature coefficients with asymmetry parameters η = 0.3. For Τ &lt; 200 Κ, however, another modification with η = 0 was found.
For LiReO4 • 2 H2O complex 187Re and 185Re NQR spectra with 16 transition frequencies were measured and discussed.
Notizen: Substitution of CO for CN— in Cyclopentadienyl Carbonyl Vanadium Compounds
Authors: Rehder Dieter 
Published: March 2015

UV irradiation of [Me4N][VCp(CO)3] and [Me4N]CN results in the formation of a complex with zero-valent vanadium which possibly has to be formulated as
[Me4N]4[CpV(CO)2CN]2. A new method of preparation of K[CpV(CO)3CN] is described; 51V NMR results and a complete IR spectrum are presented and discussed.
Synthesis of New Heterocycles by Halogenation of Tetrasulfur Tetranitride S4N4
Authors: Monteil Y. , Vincent H. 
Published: March 2015

Bromine reacts with tetrasulfur tetranitride S4N4 in solution in different solvents to give thiodithiazyl dibromide S3N2Br2.
Iodine reacts under the same conditions with S4N4 to give trithiazyl iodide (SN)3I.
The addition of chlorine, bromine or iodine to a mixture of tetrasulfur tetranitride and white phosphorus leads to compounds with the general formula P2S3N3Xn, with n = 1 or 3 depending on the nature of X.
Preparation and Reactions of Sulfur-Nitrogen Ring Systems
Authors: Roesky Herbert W. 
Published: March 2015

Two routes for the preparation of (CH3)2SnS2N2 are given, which are kinetically controlled reactions. The molecule (CH3)2SnS2N2 was characterized by X-ray analysis. It is an interesting starting material for the preparation of S2N2CO and S3N2O. The latter reacts with iminosulfur oxides and isocyanates under the formation of S3N3SO2F and S3N3SO2CF3. The structure of S3N3SO2F was established by X-ray analysis. The bonding properties are discussed.
The cleavage of thin-nitrogen derivatives with S3N2Cl2 yields also five membered sulfurnitrogen rings. The structure and properties of P3N3F5NS3N2 and C3N3F2NS3N2 are reported. Six, eight and ten membered rings are formed by the reactions of
(CH3)3Si–N = S = N–Si (CH3)3

with FSO2–N=S=O, these are S4N4O2 and S5N5+S3N3O4, respectively. The cation S5N5+ is a planar molecule, while the oxygen containing species are puckered. In S4N4O2 the oxygens are attached to one sulfur atom, which has a tetrahedral configuration.
The structure of the silicon containing cyclic and bicyclic rings (CH3)2Si(NSN)2Si(CH3)2 and CH3Si(NSN)3SiCH3 were determined.
13C NMR-spektroskopische Untersuchungen an Äthylaluminiumverbindungen / 13C NMR Spectroscopic Investigations of Ethylaluminium Compounds
Authors: Rottler R. , Kreiter C. G. , Fink G. 
Published: March 2015

The 13C NMR spectra of the ethylaluminium compounds [Al(C2H5)xCl3_x]2 x = 1, 1,5, 2 and 3 are presented and factors governing the temperature dependence of the line shape are discussed. The exchange reaction of terminal ethyl groups for chlorine ligands and ethyl ligands, resp., in ethylaluminium-sesquichloride was investigated by fitting the calculated line shapes to the observed spectra.
The energy of activation of this exchange process was determined as to be 12,3 ‡ 1,5 kcal/mole. The synthesis of 13C2-[Al(C2H5)Cl2]2 is described.
Oberflächenverbindungen von Übergangsmetallen, XVI Chemilumineszenz bei der Oxydation koordinativ ungesättigter Oberflächenverbindungen / Surface Compounds of Transition Metals, XVI Chemiluminescence Phenomena in the Oxydation of Coordinatively Unsaturated Surface Compounds
Authors: Morys Peter , Gerritzen Roger , Krauss Hans-Ludwig 
Published: March 2015

The reduced, coordinatively unsaturated surface compounds of chromium, vanadium and molybdenum, supported on silicagel, react with O2 under chemiluminescence; the extremely broad emission bands have their maxima at v = 15,0 kK (chromium), 18,6 kK (vanadium) and 20,6 kK (molybdenum).
A general reaction mechanism is proposed based on the electronic structures of the starting, intermediate and final products. It allows an interpretation of the observed chemiluminescence phenomena in agreement with other experimental data; the desactivation of a CT excited peroxo complex of do metal ion is postulated as source of radiation.
Bis (dimethylsulfoxoniummethylid)-tetracarbonyl-Komplexe der Metalle Chrom, Molybdän und Wolfram / Bis(dimethylsulfoxoniummethylid)tetracarbonyl Complexes of Chromium, Molybdenum and Tungsten
Authors: Weber Lothar 
Published: March 2015

From the photochemical reaction of M(CO)6 (M = Cr, Mo, W) and (CH3)2

-CH2 in ether,
yellow solids with the composition [(CH3)2

-CH2]2M(CO)4 are obtained in good yields.
[(CH3)2

-CH2]2M(CO)4 (M = Cr, Mo) are also accessible by the displacement of olefin from
(norbornadiene) M(CO)4 by excess ylid in ether. Pale insoluble [(CH3)2

-CH2]3Mo(CO)3 is
the sole product from the reaction of (cycloheptatriene)Mo(CO)3 and excess ylid in ether.
Reactions with 1-Phenyl-4-thiohydantoin. Preparation of 5-Arylazo-1-phenyl-4-thiohydantoin, their Reactions towards Alkylating Agents and Mannich Reaction
Authors: Shalaby A. F. A. , Daboun H. A. , Boghdadi S. S. M. 
Published: March 2015

1-Phenyl-4-thiohydantoin reacted with aryldiazonium salts to give the corresponding
5-arylazo-1-phenyl-4-thiohydantoin (1 a-f). On alkylation of 1 a, b,f with different alkyl halides, the corresponding 4-alkylmercapto derivatives (2a-f) were obtained. 2 a was hydrolysed with a mixture of ethanol-hydrochloric acid to give 5-phenylazo-1-phenyl-hydantoin (3). Treatment of 2 a, d with amines gave the products 4a—h. 4 a when refluxed with a mixture of acetic-hydrochloric acid, the product 3 was obtained, 1a, b reacted with formaldehyde and appropriate amine to give the corresponding Mannich bases 5 a-k. Also 1-phenyl-4-thiohydantoin when exposed to the Mannich reaction, 6a-e were obtained, 6 a when treated with benzenediazonium chloride, the colour substance 5 a was separated.
The Reaction of β-Cyanoethylhydrazine with Diethyl Phenylthiocarbamoylmalonate
Authors: Mohamed Sallam Mohamed Mohamed , Elnagdi Mohamed Helmy , Fleita Daizy Hanna , Hartmann Eric 
Published: March 2015

Diethyl phenylthiocarbamoylmalonate (2) reacts with β-cyanoethylhydrazin (1) to yield ethyl 3-anilino-2-pyrazolin-5-one (3) via decyanoethylation of the reaction intermediates.
Whereas 2 reacts with hydrazine hydrate in refluxing ethanol to yield a mixture of 3-anilino-2-pyrazolin-5-one (4) and the hydrazide (5), the diethyl ester (6) is formed on treatment of 2 with the same reagent in a cooled ethanolic solution. On the other hand, 2 reacts with hydrazine hydrate in the absence of a solvent to yield the carboxylic acid (7).
Benzoylacetonitrile reacts with phenylisothiocyanate to yield the thioanilide (8). The latter compound neither reacts with hydrazine hydrate not β-cyanoethylhydrazine.
An Improved Method for the Preparation of Spin-Labeled Phosphates Using Imidazole as Transfer Agent
Authors: Sosnovsky G. , Konieczny M. 
Published: March 2015

The (1-oxyl-2,2,6,6-tetramethyl-4-piperidyl)phenyl imidazole-1-phosphonate (9) is the reagent of choice for the preparation of spin-labeled phosphates 10 in yields, in most cases, exceeding 70%. The spin-labeled chloridate 8 also can be used to prepare phosphates 10, though in lower yields ranging between 27-69%.
[xxx]
Photolysis (λ =185 nm) of Liquid Pivalaldehyde Dimethyl Aceta
Authors: Naderwitz Peter , Schuchmann Heinz-Peter , Von Sonntag Clemens 
Published: March 2015

Deoxygenated liquid pivalaldehyde dimethyl acetal was photolyzed at λ = 185 nm, and 28 products have been determined. The major ones and their quantum yields are: methyl formate (0.47), isobutene (0.39), methane (0.28), neopentane (0.16), isobutane (0.13), formaldehyde dimethyl acetal (0.13), formaldehyde (0.09), methyl neopentyl ether (0.09), methanol (0.07), and methyl pivalate (0.04). The predominant primary photoprocesses are suggested to be the scission of the O–CH3 bond (homolytic, 0.51; molecular, 0.04) and the C-tBu bond (homolytic and molecular, 0.16). Minor processes are the scission of the C–OCH3 (molecular, 0.09; homolytic, 0.03), C–H (0.006), and C–CH3 bonds (&lt; 0.01). The radical (A) eliminates with ease t-butyl (reaction (i)). This process is at least 10 times more efficient than methoxy elimination or hydrogen abstraction from the substrate.
[xxx]
Elektronenbeugungsbestimmung der Molekülstruktur von 4-Fluor-2′,4′,6′ -trimethylbiphenyl / Molecular Structure of 4-Fluoro-2′,4′,6′-trimethylbiphenyl Determined by Electron Diffraction
Authors: Zeitz K. , Oberhammer H. , Häfelinger G. 
Published: March 2015

The molecular structure of gaseous 4-fluoro-2′,4′,6′-trimethylbiphenyl was determined by electron diffraction. The average of two independend determinations leads to the following parameters for the structure:
CC(ring) = 1.398(1),CC(methyl) = 1.522(5), CH(ring) = 1.082(6), CH(methyl) = CH(ring) + 0.015 = 1.097(6), CF = 1.324(7), Cl-Cl′ = 1.488(9) (inter ring bond), ∢(C,C,H) = 109.9(1.8)° (angle of methylgroup tetrahedra), α = 124.9(0.6)° (angle of ortho-methyl-groups towards the inter ring bond), φ = 77.5(2.1)° (angle of torsion between the planes of the two phenyl rings) which are in good agreement with respect to known structural data on biphenylderivatives. A very interesting result is the angle of torsion with 77.5° which is by 6.5° smaller than the value of 84(1)° determined by X-ray crystallography for the corresponding 4-iodo-compound in the crystalline state1. In all determinations known to us til now for comparable derivatives of biphenyl the angle of torsion was found larger in the gaseous state than in the crystalline state.
Notizen: Ein silacyclisches Triple-Ylid: 2.4.6-Tris-trimethylphosphoranyliden-1.3.5- trisilacyclohexan / A Silacyclic Triple-ylide : 2,4, 6-Tris-trimethylphosphoranylidene-1,3,5-trisilacyclohexane
Authors: Schmidbaur Hubert , Zimmer-Gasser Beate 
Published: March 2015

From (chloromethyl)silane and trimethylphosphine a phosphonium salt
[(CH3)3P–CH2SiH3]Cl
is obtained, which can be converted into the ylide (CH3)3P=CHSiH3 upon transylidation with (CH3)3P = CH2. The silyl ylide is thermally unstable and looses hydrogen to give the title six-membered ring species.
Ternäre Erdalkali-Element(V)-Verbindungen AMg2B2 mit A = Ca, Sr, Ba und B = As, Sb, Bi / Ternary Alkaline Earth-Element(V)-Compounds AMg2B2 with A = Ca, Sr, Ba and B = As, Sb, Bi
Authors: Deller Klaus , Eisenmann Brigitte 
Published: March 2015

The new compounds AMg2B2 (A = Ca, Sr, Ba; B = As, Sb, Bi) have been prepared and structurally characterized by X-ray single crystal investigations. They are isotypic and crystallize trigonally in the ordered anti-La2O3 (Ce2O2S)-type. The lattice constants (in Å ± 0.01) are
[xxx]
The compounds belong to the Zintl-phases, the coordination polyhedra of the element(V)-atoms are compared with those in the A2B and A5B3 compounds.
29Si-, 31P- und 13C-Kernresonanzuntersuchungen an N-silylierten Triorganophosphiniminen / Silicon-29, Phosphorus-31, and Carbon-13 Nuclear Magnetic Resonance Investigations of N-Silylated Triorganophosphine Imines
Authors: Buchner Wolfgang , Wolfsberger Werner 
Published: March 2015

Abstract

29Si, 31P and, in part, 13C NMR data are reported for N-trimethylsilyl-triorganophosphine imines as well as some siliconsubstituted methoxy and chloro derivatives. The spin-spin splitting pattern of the 29Si{1H} spectra is discussed for disilanes of the type (RR′R″P=N-SiMe2-)2. A qualitative interpretation of 29Si chemical shifts is preferably being based on hyperconjugation rather than a (p-d)n bonding mechanism. The preparation of a series of bis(phosphinimino)silanes and 1,2-bis(phosphinimino)disilanes is described.
Darstellung und Kristallstruktur von CaCuGe / Preparation and Crystal Structure of CaCuGe
Authors: Dörrscheidt Wolfgang , Niess Nicosia , Schäfer Herbbert 
Published: March 2015

Abstract
CaCuGe crystallizes orthorhombic, Pna21 with a = 2136 ± 2 pm, b = 754 ± 1 pm, c = 435 ± 1 pm, z = 12. The Cu atoms together with the Ge atoms form puckered layers parallel to the b/c-plane. Within each layer each Cu atom is bonded to three Ge atoms and viceversa. Between the layers the Ca atoms are located.
Über Derivate des Hydrazins, VII Zur Reaktivität von Bis(trimethylsilyl)aminoisocyanid / On Derivatives of Hydrazine, VII Reactivity of Bis(trimethylsilyl)aminoisocyanide
Authors: Wiberg Nils , Hübler Gerhard 
Published: March 2015

Abstract
The chemistry of bis(trimethylsilyl)aminoisocyanide (1) is determined by three reactive centres of the system : the hydrolyzable Si–N-bond, the oxidizable carbon in the formal oxidation state two, the additionable double bond system. Reactions of the oxygen stable compound 1 with halogens X2 or sulfenyl halides RSX as oxidizing agents gives compounds of type (Me3Si)2NNCX2 or (Me3Si)2NNCX(SR). Heterocumulenes such as CO2, CS2, RNCS (R = (Me3Si)2N), SO2 add to 1, leading to heterocycles, which decompose at higher temperatures by ring cleavage. With other heterocumulenes such as PhNCO, Me3SiNSO, Me3SiNSNSiMe3 products are found, the formation of which could be explained by reaction paths including the building and cleavage of heterocycles.
Reaktionen an komplexgebundenen Liganden, XXII Synthese und Reaktionen von Cyclopentadienyl-diphosphan-carbonyl-Eisen- und Chrom-Komplexen / Reactions at Complex Bonded Ligands, XXII Synthesis and Reactions of Cyclopentadienyl Diphosphane Carbonyl Iron and Chromium Complexes
Authors: Sellmann Dieter , Kleinschmidt Ernst 
Published: March 2015

Abstract
The synthesis of binuclear iron and chromium complexes with bridging dppe ligands is reported, e.g. [μ-dppe{C5H5Fe(CO)Br}2] or [μ-dppe{C5H5Cr(CO)(NO)}2], (dppe = (C6H5)2PC2H4P(C6H5)2). With hydrazine, these compounds yield no doubly bridged complexes with dppe and N2H4 bridges, neither in dark- nor in photo-reactions. In case of the iron complexes either reduction of the starting complex or transformation of the dppe bridging ligand into a chelating ligand are observed instead. The reactions depend upon the polarity of the solvent and yield [μ-dppe{C5H5Fe(CO)}2] in benzene, however, [C5H5Fe(CO)(dppe)]Br in tetrahydrofuran. The chromium complex undergoes decomposition on UV irradiation, splitting off CO and yielding the chelate complex [C5H5Cr(NO)(dppe)] as well as polymeric [C5H5Cr(NO)]x.
Zur Hochdruckpolymorphie der Oxidchloride (MOCI) von Er, Tm, Yb und Lu und neue Verbindungen des Formeltyps Ln3O4Cl / High Pressure Polymorphism of Rare Earth Oxychlorides of Er, Tm, Yb and Lu and New Compounds with the General Formula Ln3O4Cl
Authors: Beck H. P. 
Published: March 2015

Abstract
Rare earth oxychlorides crystallizing in the SmSI arrangement undergo a high pressure transformation to a PbFCl-type structure. An intermediate phase appearing during the transition supports a proposed mechanism of displacive and martensitic movements in several steps. The decomposition of PbFCl-type oxychlorides to new Ln3O4Cl compounds is discussed as a topotactic reaction.
Das 2-Oxazolinsystem als Schutzgruppe für die sterisch gehinderte Carboxylfunktion bei Grignard-Reaktionen: Synthese phosphororganischer Verbindungen mit einem o-Carboxyphenylrest / The 2-Oxazoline System as a Protecting Group for the Sterically Hindered Carboxyl Function in Grignard-Reactions: The Synthesis of Organophosphorus Compounds with an o-Carboxyphenyl Rest
Authors: Luckenbach Reiner , Lorenz Klaus 
Published: March 2015

Abstract
The efficiency of the 2-oxazoline system as a protecting group for the sterically hindered carboxyl function is demonstrated in the case of Grignard-reactions of certain organophosphorus compounds. Thereby, organophosphorus species with an o-carboxyphenyl group are easily accessible. Additionally, the enantiomer separation of an unsymmetrically substituted tertiary phosphine oxide with an o-carboxyphenyl group is described.
Radiation Chemistry of Carbohydrates, XV OH Radical Induced Scission of the Glycosidic Bond in Disaccharides
Authors: Zegota Henryk , Von Clemens 
Published: March 2015

Abstract
In the γ-radiolysis of deoxygenated, N2O-saturated aqueous solutions of maltose, lactose, gentiobiose, melibiose, trehalose and sucrose carbohydrate products containing five or six carbon atoms have been identified and their G-values measured. These products originate from the OH radical induced scission of the glycosidic bond of the disaccharides. The nature of the products is in agreement with a reaction scheme proposed previously for the radical induced scission of the glycosidic bond of cellobiose. It involves hydrolysis and the rearrangements of radicals with the free spin next to the glycosidic bond and to the lactol bridge. The nature the glycosidic bond (α, β, 1-4, 1-6, 1-1, 1, 2) has only little influence on the G-values of its scission which range between about 1.9 and 3.5.
Über Aminosäure-Antagonisten, III Synthese von 4-Alkoxy-2-oxo-trans-3-butensäurealkylestern / On Amino Acid Antagonists, III Syntheses of 4-Alkoxy-2-oxo-trans-3-butenoic Acid Esters
Authors: Trowitzsch Wolfram 
Published: March 2015

Abstract
The syntheses of the above biologically active esters are described. By NMR spectroscopy it is shown that the corresponding ethyl compound 4 may exist in both the trans and the cis conformers. Starting with 4, addition of an appropriate alcohol results in the corresponding 4-alkoxy compound of 4. The described esters are antagonists of aspartic acid as well as of oxalacetic acid and inhibited the growth of E. coli MRE 600.
Zur Reaktivität von C=N-Doppelbindungssystemen, XII1 über Kupfer(II)- und Nickel(II)-Komplexe von Aminomethylen-1.3-dicarbonylverbindungen / The Reactivity of the C=N-Double Bond System, XII1 Copper(II) and Nickel(II) Complexes of Aminomethylen-1,3-dicarbonyl Compounds
Authors: Wolfbeis Otto S. , Ziegler Erich 
Published: March 2015

Abstract
Reaction of active methylene compounds (2,4-pentanedione, dimedone, 4-hydroxycoumarin, 4-hydroxycarbostyriles) with triethyl orthoformate and primary amines (aniline, o-methylmercapto aniline, cyclohexylamine) yields substituted aminomethylen-1.3-dicarbonyles (1-5), which in their tautomeric form (B) give stable, deeply coloured Cu··- and Ni- --organic complexes (6-27). The same chelates may also be obtained by direct reaction of orthoformate, amine and active methylene in the presence of the metal acetate at 40-50 °C in 65-90% yield.
Anilinomethylene-3-methyl-1-phenylpyrazolone in turn does not exhibit any tendency to chelate Cu·· or Ni··. The X-ray crystallography of its o-methylmercaptoderivative shows it to exist in the virtually planar enamin form.
Notizen: Eine theoretische Interpretation der gegenseitigen Wechselwirkungsparameter in den 29Si–NMR-Verschiebungen / A Theoretical Interpretation of Mutual Interaction Parameters for 29Si NMR Chemical Shifts
Authors: Radeglia R. 
Published: March 2015

Abstract
The description of substituent dependence of 29Si NMR chemical shifts by means of pairwise interaction parameters is interpreted with a simple quantumchemical model theoretically.
Notizen: Darstellung und Kristalldaten der isomorphen Kupferthio(seleno)phosphate Cu7PS6 und Cu7PSee / Preparation and Crystal Data of the Isomorphous Copperthio(seleno)phosphates Cu7PS6 and Cu7PSe6
Authors: Kuhs W. F. , Schulte-Kellinghaus M. , Krämer V. , Nitsche R. 
Published: March 2015

Abstract
The title compounds were prepared by annealing the elements in stoichiometric proportions at 720 °C as well as by thermal decomposition of Cu3PS4 or Cu3PSe4. They crystallize in the space group P213 with lattice parameters a = 9.671(1) and 10.116(1) Å resp.; X-ray powder diffraction data are listed.