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Facet section ZfN Section B:Volume 033 [X]
Facet Publication Year 1978 [X]

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141	Author	Jochen Eilermann, Horst Schössner, HelmutA. Lindner	Requires cookie*
	Title	Chemie polyfunktioneller Liganden
	Abstract	, XLIV [1] Darstellung und Eigenschaften von l.l.l-Tris(diiodarsinomethyl)ethan Chemistry of Polyfunctional Ligands, XLIV [1] Preparation and Characterization of l,l,l-Tris(diiodarsinomethyl)ethane
	Reference	Z. Naturforsch. 33b, 603—605 (1978); eingegangen am 23. März 1978
	Published	1978
	Keywords	l, l, l-Tris(diiodarsinomethyl)ethane, Raman, IR, FIR, *H NMR
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0603.pdf
	Identifier	ZNB-1978-33b-0603
	Volume	33

142	Author	Albrecht Mewis	Requires cookie*
	Title	AB2X2-Verbindungen im CaAl2Si2-Typ, V [1] Zur Struktur der Verbindungen CaMn2P2, CaM^As*, SrMn2P2 und SrMn2As2
	Abstract	Four ternary compounds with the formulas CaMn2P2, CaMn2As2, SrMn2P2, and SrMn2As2 have been prepared and investigated by X-ray methods. They are isotypic and crystallize trigonally in a CaAl2Si2-type structure (space group P 3 m 1-D3d) with the lattice constants:
	Reference	Z. Naturforsch. 33b, 606—609 (1978); eingegangen am 20. März 1978
	Published	1978
	Keywords	Strontium Compounds, Calcium Compounds, Manganese, Phosphides, Arsenides
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0606.pdf
	Identifier	ZNB-1978-33b-0606
	Volume	33

143	Author	Siegfried Pohl	Requires cookie*
	Title	Cis-2-telluro-1.3.22 5 .4A 3 -diazadiphosphetidin - Kristallstruktur eines in Lösung fluktuierenden Redoxsystems Cis-2-telhirium-1.3.2/ 5 .4A 3 -diazadiphosphetidine - Crystal Structure of a Redox System Fluctuating in Solution
	Abstract	The crystal structure of the title compound was determined from single crystal X-ray data. The compound crystallises in the orthorhombic space group Pnma. In contrast to the solution where fluctuating P-Te bonds have been established by NMR analyses the crystals contain isolated molecules with fixed P-Te bonds (bond length: 235.4 pm). The four-membered phosphorus nitrogen ring exhibits significant deviations from planarity. The P-N bond lengths were found to be 168.3 and 175.0 pm, respectively.
	Reference	Z. Naturforsch. 33b, 610—613 (1978); eingegangen am 17. Februar 1978
	Published	1978
	Keywords	Crystal Structure, Four-Membered Phosphorus Nitrogen Ring, Phosphorus Tellurium Compound
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0610.pdf
	Identifier	ZNB-1978-33b-0610
	Volume	33

144	Author	T. Platzner, J. K. Thomas	Requires cookie*
	Title	Fluorescence and Proton Nuclear Magnetic Resonance Studies of Thallous Ions - Crown Ether Complexes in Organic Solvents
	Abstract	The complexing of thallous ions (T1+), with the crown ether dibenzo 18 crown-6 poly-ether (DB) has been studied by NMR, fluorescence, and pulse radiolysis techniques. NMR data show a strong interaction of the T1+ ions with the aromatic moieties. This is also illustrated by a static quenching of the aromatic fluorescence by Tl + . The rates of reactions of T1+ with hydrated electrons eaq~ and pyrene excited singlet states are decreases on complexing the ion by the crown ether.
	Reference	Z. Naturforsch. 33b, 614—618 (1978); received December 12 1977/March 13 1978
	Published	1978
	Keywords	Photochemistry, Fluorescence, Crown Ethers, Biology
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0614.pdf
	Identifier	ZNB-1978-33b-0614
	Volume	33

145	Author	V. Propach, D. Reinen, H. Drenkhahn, Hk Müller-Buschbaum	Requires cookie*
	Title	Über die Farbe von "NiO"
	Abstract	Ligand Field Spectra, Non-Stochiometry Depending on the method of preparation ,,NiO"-single crystals of different colours can be synthesized. It is shown by ligand field spectroscopy that the ligand field and inter-electronic repulsion parameters are the same for the green, yellow and brown crystals. There is definite spectroscopic evidence, that the colour of stochiometric NiO is green.
	Reference	Z. Naturforsch. 33b, 619—621 (1978); eingegangen am 30. Januar/17. April 1978
	Published	1978
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0619.pdf
	Identifier	ZNB-1978-33b-0619
	Volume	33

146	Author	Norio Miyoshi, Giiti Tomita	Requires cookie*
	Title	Production and Reaction of Singlet Oxygen in Aqueous Micellar Solutions Using Pyrene as Photosensitizer
	Abstract	The reaction of singlet oxygen with 1,3-diphenylisobenzofuran was investigated in aqueous micellar solutions of sodium dodecyl sulfate and dodecyl trimethylammonium chloride using pyrene as photosensitizer. Singlet oxygen, produced by the photosensitiza-tion of pyrene bound to micelles, oxidized efficiently 1,3-diphenylisobenzofuran bound to micelles. The quantum yield for singlet oxygen production and the rate constant for furan oxidation were determined by the kinetic analysis for the oxidation reaction of furan. Quenching of singlet oxygen by sodium azide competed with the furan oxidation, and its rate constant was also determined. Results obtained were compared with those in methanolic solutions. The quantum yield for singlet oxygen production and the rate constant for furan oxidation were much higher in micellar solutions than those in methanolic solutions. Empty micelles w x as found to act as a considerably strong scavenger for singlet oxygen. The penetration probability of singlet oxygen from aqueous phase into the interior of micelles which bound furan was also estimated.
	Reference	Z. Naturforsch. 33b, 622—627 (1978); received February 24 1978
	Published	1978
	Keywords	Singlet Oxygen, Pyrene, Diphenylisobenzofuran, Micelles
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0622.pdf
	Identifier	ZNB-1978-33b-0622
	Volume	33

147	Author	Walter Fabian	Requires cookie*
	Title	Semiempirische SCF-Rechnungen an den angeregten Zuständen von Hydroxy Cumarinen Semiempirical SCF-Calculations of the Excited States of Hydroxycoumarines
	Abstract	Semiempirical SCF-calculations show that the fluorescence bands of 7-hydroxycoumarin at 1.87 • 10 4 -1,92 • 10 4 cm -1 are most probably due to a phototautomeric form. A topo-logical rule is evaluated to explain the dependence of the fluorescence intensity upon the position of the hydroxyl group in the various isomeric hydroxycoumarines.
	Reference	Z. Naturforsch. 33b, 628—631 (1978); eingegangen am 16. März 1978
	Published	1978
	Keywords	Hydroxycoumarines, Fluorescence, Phototautomerism, PPP-Calculations
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	Identifier	ZNB-1978-33b-0628
	Volume	33

148	Author	Friedrich Bölsing, Assadollah Hakim	Requires cookie*
	Title	Präparative organische Chemie unter Verwendung einfach herzustellender Katalysatoren A Simple Method for Preparation of Catalysts for Preparative Organic Chemistry
	Abstract	There are numerous simple chemical reactions in which reaction products arise, which compared with the materials at the outset, possess a considerably greater surface area. A significant example is the reaction of aluminium alcoholates with water. Reactions of this kind can, to a certain extent, be used as auxiliary reactions, in order to distribute other materials homogenously. In the chosen example, a material dissolved beforehand in the alcoholate, e.g. a solution of a metal salt, would be transferred in the course of the distributing reaction into the newly-developing structure of the reaction product. In this publication the application of some catalysts thus prepared to some classical organic chemical reactions is described by way of example.
	Reference	Z. Naturforsch. 33b, 632—635 (1978); eingegangen am 9. Februar 1978
	Published	1978
	Keywords	Catalysts, Hydrogenation, Dehydrogenation, Dehydration
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0632.pdf
	Identifier	ZNB-1978-33b-0632
	Volume	33

149	Author	Horst Böhme, KurtHenning Ahrens, Hans-Joachim Drechsler, Georg Rumbaur	Requires cookie*
	Title	Zur Synthese von N-(Chlormethyl)carbimidoylchloriden Synthesis of N-(Chloromethyl)carboximidoyl Chlorides
	Abstract	N-(Chloromethyl)carboximidoyl Chlorides, N-(Chloromethyl)carboximidic Acid Chloromethylester, Tris(chloromethyl)amine, l,3-Bis(chloromethyl)-2,2,2,4,4,4-hexachloro-2,2,4,4-tetrahydro-l,3,2,4-diaz£kdiphosphetidine, N-Bis(chloromethyl)phosphoramidic Dichloride
	Reference	Z. Naturforsch. 33b, 636—639 (1978); eingegangen am 22. Februar 1978
	Published	1978
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0636.pdf
	Identifier	ZNB-1978-33b-0636
	Volume	33

150	Author	Erich Ziegler, Wolfgang Leitner, Heinz Sterk	Requires cookie*
	Title	The Reactivity of the C=N-Double Bound System, XIV [1] Reactions with 3,4-Dihydroisoquinoline
	Abstract	N-Acetyl-2-(2-ethoxycarbonyl-2-cyano-vinyl)-phenyl-ethylamine, 1,2,3,4-Tatrahydroisoquinolines
	Reference	Z. Naturforsch. 33b, 640—645 (1978); eingegangen am 17. Februar 1978
	Published	1978
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0640.pdf
	Identifier	ZNB-1978-33b-0640
	Volume	33

151	Author	Egon Fahr, Georg Ph, Roth, Peter Wüstenfeld	Requires cookie*
	Title	Die gas-chromatographische Untersuchung der bei der UV-Bestrahlung von Uracil und Thymin in Lösung und in der Eismatrix gebildeten Produkte* Gas-chromatographic Investigation of Products Formed by UV Irradiation of Uracil and Thymine in Solution and Ice Matrix
	Abstract	By g£is-chromatographic analysis of products prepared by UV irradiation of uracil in water, acetonitrile or ice matrix resp. of thymine in actonitrile could be demonstrated, that in all cases all four cyclobutane dimers are formed.
	Reference	Z. Naturforsch. 33b, 646—651 (1978); eingegangen am 6. Dezember 1977
	Published	1978
	Keywords	UV, Uracil, Thymine
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0646.pdf
	Identifier	ZNB-1978-33b-0646
	Volume	33

152	Author	OttoJ. Scherer, Ngoc-Tram Külbach, Walter Glässel	Requires cookie*
	Title	Elementorganische Amin/Imin-Verbindungen, XVIII [1] Amino-Imino-Thiophosphorane: er 3 , A 5 -Phosphazene Elementorganic Amino/Imino Compounds, XVIII [1] Aminoiminothiophosphoranes: o 3 , / 5 -Phosphazenes
	Abstract	The reaction of the aminoiminothiophosphoranes (1) with methanol yields the bisamino-thiophosphoric acid derivatives (3). la and IV b ->VTb element halides form the new P-N element four membered rings 4->-7, which partially exist as a mixture of eis and trans isomers. Different ylide group transfer is observed on the reaction of la with trimethyl -phosphine or trimethyl phosphite. With trimethylphosphine (CH3)3P(S) and a phos-pha(III)azene are formed, with trimethyl phosphite (CH30)3P = NC(CH3)3 and the [2 + 2] cycloaddition product of la and (R3C)(R3Si)N-P = S (R = CH3) can be isolated.
	Reference	Z. Naturforsch. 33b, 652—656 (1978); eingegangen am 16. Februar/13. März 1978
	Published	1978
	Keywords	Ring Closure Reactions, Ylide Group Transfer, NMR
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0652.pdf
	Identifier	ZNB-1978-33b-0652
	Volume	33

153	Author	M. P. Singh, A. K. Singh, Mandhir Kumar	Requires cookie*
	Title	Mechanism of Hg(II) Oxidation of D-Galactose in Alkaline Medium
	Abstract	D-Galactose, Nessler's Reagent The present paper deals with the kinetics of oxidation of D-galactose by Nessler's reagent in alkaline medium. The reaction is zero order with respect to Hg(II) and first order with respect to reducing sugar. The direct proportionality of the reaction rate at low hydroxide ion concentrations shows retarding trend at higher concentrations. The reaction rate is inversely proportional to iodide ion concentration. A mechanism has been proposed taking Hgl3~ as the reacting species.
	Reference	Z. Naturforsch. 33b, 657—659 (1978); received February 27 1978
	Published	1978
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	Identifier	ZNB-1978-33b-0657
	Volume	33

154	Author	FathyA. Amer, AbdelHamid Harhash, MaryL. Awad	Requires cookie*
	Title	Synthesis of 2-Methyl-l-phenylthiocarbamoylglyoxal Arylhydrazones and Diethyl(arylazo)(phenylthiocarbamoyl)malonate and their Reactions with Hydrazines
	Abstract	Treatment of a-phenylthiocarbamoyl acetyl acetone (1) with aromatic diazonium salts effects acetyl cleavage with the formation of 2-methyl-l-phenylthiocarbamoylglyoxal arylhydrazones (2a-c), which afford the anilinopyrazoles (5a-c) and the phenylimino-2-pyrazolines (6a-c) on treatment with hydrazine or phenyl hydrazine respectively. Treatment of diethyl a-phenylthiocarbamoyl malonate with aryl diazonium salts gave diethyl (arylazo)(phenylthiocarbamoyl) malonate which afford the 7-phenyl-5-(arylazo)-2,3,7-triazabicyclo[3,2,0]hept-l-ene-4,6-dione (9a, b) and its 3-phenyl derivatives (9c, d) with hydrazines and phenyl hydrazine respectively.
	Reference	Z. Naturforsch. 33b, 660—662 (1978); received January 5 1978
	Published	1978
	Keywords	Hydrazines, Pyrazoles, Arylhydrazones
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	Identifier	ZNB-1978-33b-0660
	Volume	33

155	Author	Gerhard Schaden, Herrn Prof, G O Dr, Schenck	Requires cookie*
	Title	Kurzzeitpyrolyse, VIII [1] Reaktionen bei der CO-Eliminierung aus ehinoiden Verbindungen Short Time Pyrolysis, VIII [1] Reactions after CO-Elimination from Quinoid Compounds
	Abstract	Gas-Phase Pyrolysis, Polycyclic Aromatic Hydrocarbons Fuchsone (4-diphenylmethylene-2,5-cyclohexadien-l-one) (1) eliminates CO upon gas-phase pyrolysis. The resulting biradical (2) either formes by double ring closure and dehydrogenation benzo[c]phenanthrene (6) or recombines to 6,6-diphenylfulvene (3) which gives after dehydrogenative ring closure and rearrangement 1-phenylacenaphthy-lene (11).
	Reference	Z. Naturforsch. 33b, 663—665 (1978); eingegangen am 2. Februar 1978
	Published	1978
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0663.pdf
	Identifier	ZNB-1978-33b-0663
	Volume	33

156	Author	BarryJ. Parsons, Dietrich Schulte-Frohlinde, Clemens Von Sonntag	Requires cookie*
	Title	Reaction of Br3' 2 -with 2-Deoxy-D-ribose. A Preferred Attack at C-l
	Abstract	In the photolysis of 5-bromouracil containing DNA Br atoms are expected inter mediates. In order to evaluate the possible site of attack of the Br atom at the sugar moiety of DNA the reaction of 2-deoxy-D-ribose with the Br atom (complexed with two bromide ions) was investigated. Hydroxyl radicals generated by the radiolysis of N20 saturated aqueous solutions were converted into Br3 -2_ radicals by 1 M bromide ions. Br3-2-reacts with 2-deoxy-D-ribose (k = 3.7 • 10 4 M -1 s -1 , pulse radiolysis). The major product is 2-deoxy-D-erythro-pentonic acid (G = 2.4, y-radiolysis). It is formed by hydrogen abstraction from C-l and oxidation of this radical by other radicals. An alternative route via the radical at C-2 is neglible. It follows that Br3-2 ~ reacts preferentially at C-l of 2-deoxy-£>-ribose.
	Reference	Z. Naturforsch. 33b, 666—668 (1978); received March 15 1978
	Published	1978
	Keywords	Pulse Radiolysis, y-Radiolysis, 2-Deoxy-D-ribose, G-values, Radical Reactions
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0666.pdf
	Identifier	ZNB-1978-33b-0666
	Volume	33

157	Author	Hk Müller-Buschbaum, D. Chales De Beaulieu	Requires cookie*
	Title	Zur Besetzung von Oktaeder- und Tetraederpositionen in Bi2Ca2Fe209 About Occupation of Octahedral-and Tetrahedral Positions of Bi2GaoFe209
	Reference	Z. Naturforsch. 33b, 669—670 (1978); eingegangen am 17. März 1978
	Published	1978
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0669_n.pdf
	Identifier	ZNB-1978-33b-0669_n
	Volume	33

158	Author	Albrecht Mewis, Peter Blumstengel	Requires cookie*
	Title	Ternäre Verbindungen in den Dreistoffsystemen Calcium-Kupfer-Phosphor (Arsen) Ternary Compounds in the Systems Calcium -Copper -Phosphorus (Arsenic)
	Abstract	By investigations in the systems Ca-Cu-P(As) we found two ternary phases of the formulas CaCuP and CaCuAs, which crystallize in a hexagonal lattice. We suppose a modified Ni2ln-type structure. Some details about a Calcium Copper Phosphide with a ThCr2Si2-type struc-ture are given.
	Reference	Z. Naturforsch. 33b, 671—672 (1978); eingegangen am 3. März/4. April 1978
	Published	1978
	Keywords	Calcium Compounds, Copper, Phosphides, Arsenides, Crystal Data
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0671_n.pdf
	Identifier	ZNB-1978-33b-0671_n
	Volume	33

159	Author	W. Maringgele, A. Meiler, H. Nöth, R. Schroen	Requires cookie*
	Title	Darstellung und Assoziation einiger Phosphiniminoborane Preparation and Association of Some Phosphiniminoboranes
	Abstract	Triphenylphosphiniminodihalogenoboranes, Triphenylphosphindiorganylboranes, NMR N -Trimethylsily 1 -triphenylphosphinimine re -acts with halogenoboranes R2BX (R = organyl, F, Cl, Br; X = F, Cl, Br) to yield triphenylphos-phiniminodihalogenoboranes and triphenylphos-phiniminodiorganylboranes, respectively. In so-lution, the dihalogeno compounds are associated, probably dimeric, while the diorganyl derivatives are monomeric. Mass spectroscopic data of the compounds show them to be monomeric in the vapor phase.
	Reference	Z. Naturforsch. 33b, 673—675 (1978); eingegangen am 14. März 1978
	Published	1978
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	Identifier	ZNB-1978-33b-0673_n
	Volume	33

160	Author	Klaus Deller, Brigitte Eisenmann	Requires cookie*
	Title	BaSb3, ein Antimonid mit einem zwei- dimensional unendlichen [Sb3 2 ] n-Poly anion BaSb3, an Antimonide with an Infinite Twodimensional [Sb3 2 ~]n -Anion
	Abstract	The new compound BaSb3 has been prepared and its structure determined. It crystallizes monoclinic (C 2/m, a = 1080.7(5) pm, b = 851.9(5) pm, c = 647.1(5) pm, ß = 112.66(4)°). The Sb-atoms build up 14-rings of two-and threebonded Sb, which are connected to puckered nets.
	Reference	Z. Naturforsch. 33b, 676—677 (1978); eingegangen am 17. März 1978
	Published	1978
	Keywords	Barium Antimonide, Crystal Structure, Intermetallic Compound
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	Identifier	ZNB-1978-33b-0676_n
	Volume	33

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