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1973 (192)
21Author    Requires cookie*
 Title    Magnetic and Optical Studies of Copper Caprylate in Dioxane-Ethanol Mixtures  
 Abstract    e h r o t r a , Y . P . M e h t a , an d T . N . N a g a r D epartm ent of Chemistry, U niversity of Jod hp ur, Jo d hp ur, India IR, UV, copper, magnetic moment The IR spectrum of copper caprylate exhihits only one absorption band at about 1580 cm '1 which has been assigned to the binuclear configuration of copper soaps. The magnetic and spectroscopic studies confirm that the binuclear structure of copper capryla­ te persists in solutions. The absorption band near 375 m^ reveals the presence of copper-copper linkage and thus establishes the binuclear configuration of copper soaps in mixed solvents. The behaviour of copper soap and copper salt solutions is quite different and the absorption m axima are observed a t different wavelengths. 
  Reference    (Z. Naturforsch. 28b, 101—103 [1973]; received November 21 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0101 
 Volume    28 
22Author    Requires cookie*
 Title    ESR Spectra of Some Manganese(II) Complexes of Hexamethylphosphoramide and Nonamethy limid odiphosphoramide  
 Abstract    d e B o l s t e r D epartm ent of Inorganic Chemistry, S tate U niversity, P .O .B o x 75, Leyden, The Netherlands B . N i e u w e n h u i j s e 
  Reference    (Z. Naturforsch. 28b, 104 [1973]) 
  Published    1973 
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 TEI-XML for    default:Reihe_B/28/ZNB-1973-28b-0104.pdf 
 Identifier    ZNB-1973-28b-0104 
 Volume    28 
23Author    K.G H, K. B., E. K., K.H LRequires cookie*
 Title    Fragmentbildung und Ionenausbeute der Tetramethylverbindungen von Si, Ge, Sn und Pb in Abhängigkeit von der Elektronenstoßenergie im Massenspektrometer Fragmentations and Ion Yields of the Tetram ethyl Compounds of Si, Ge, Sn and Pb in Dependence of the Electron Im pact Energy in a Mass Spectrometer  
 Abstract    Relative fragmentation intensities, ion yields, dependence, electron energy In this study the behaviour of the tetramethyl compounds of Si, Ge, Sn and Pb in an ion source was investigated by mass spectrometry under equal conditions. A systematic investigation of the fragment formation and of the ion yield as a function of the electron impact energy and the atomic number of the central atom in the tetramethyl compounds was carried out. In all cases the trimethyl ions show the highest intensity in the whole energy range from 15 to 100 eV electron impact energy. At an electron impact energy of 20 eV the number of peaks having a high intensity in the mass spectrum is rather small. The relative stability of the trimethyl ions can be ascribed to their even electron number. Besides, the trimethyl ions are isoelectronic with the trivalent compounds of the I I I A group. The decreasing intensity of the trimethyl ions and the increasing intensity of the monomethyl ions with higher atomic number of the central atom can be explained by the increasing stability of the lower oxidation state. The ion yield of the sum of all fragments containing a metal atom reaches a maximum in the case of Ge(CH3)4 and decreases from Ge(CH3)4 to Pb(CH3)4. The tendency of the ion yields of the metal containing fragments is parallel to the values of the electronegativities calculated by A l l r e d and R o c h o w . The tendency of the ion yields and the localization of the positive charge after the ionization are discussed in detail. 
  Reference    (Z. Naturforsch. 28b, 107—112 [1973]; eingegangen am 22. Dezember 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0107 
 Volume    28 
24Author    E. L., H.-ME.Requires cookie*
 Title    Das Verhalten von Thiophosphinsäuren gegenüber BrMn(CO)5 und BrRe(CO)5 The Behaviour of Thiophosphinic Acids towards BrMn(CO) 5 and BrRe(CO) 5  
 Abstract    T h iop h o sp h o n ic acid , b ro m o p e n ta ca rb o n y lm a n g a n e se , b ro m o p e n ta ca rb o n y lrh e n iu m , I R 
  Reference    (Z. Naturforsch. 28b, 113—119 [1973]; eingegangen am 28. Dezember 1972) 
  Published    1973 
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 TEI-XML for    default:Reihe_B/28/ZNB-1973-28b-0113.pdf 
 Identifier    ZNB-1973-28b-0113 
 Volume    28 
25Author    V. H., E. F.Requires cookie*
 Title    Vibrational Spectra of Crystals with Olivine Structure I. Silicates  
 Abstract    Diese Arbeit ist dem Andenken an F r a n k M a t o SSI gewidmet Crystal vibrational spectra, olivine, silicates, Raman spectra, IR spectra Polarized R a m a n (Ra) and IR reflection spectra from single crystals of olivine, forsterite, monticellite and tephroite have been measured and assigned. Comparing the different spectra including those of other substances of the same structure, it could be shown, that the four stretching vibrations of the S i0 4 tetrahedra are the only vibrations which may be interpreted as independent group vibrations. Cation typical vibrations are more or less strongly coupled to the deformation vibrations of the S i0 4 tetrahedra. 
  Reference    (Z. Naturforsch. 28b, 125—139 [1973]; eingegangen am 29. Januar/19. Februar 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0125 
 Volume    28 
26Author    Requires cookie*
 Title    Nachweis von strukturellen L-Defekten im innerkristallinen Wasser von hydratierten Vermikuliteinkristallen mittels dielektrischer Messungen Detection of Structural L-Defects in Intracrystalline W ater of Vermiculites by Dielectric Measurements  
 Abstract    L-Defects, intracrystalline water, vermiculites Homoionic single crystals of vermiculite in different hydration stages (isolated water molecules, discrete monomolecular or bimolecular water layers respectively) have been used for dielectric measurements within the frequency of 30 Hz and 10 MHz. The results are interpreted by the diffusion of isolated structural L-defects. The activation energy of the process has been determined to be 2.3 kcal/mole. 
  Reference    (Z. Naturforsch. 28b, 140—147 [1973]; eingegangen am 24. Januar 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0140 
 Volume    28 
27Author    K. D., A.-FS.Requires cookie*
 Title    Darstellung, Eigenschaften und Schwingungsspektren von MoV0 2( 0 2PC12) * P0C13 und Mo0 2C12 * P0C13 Preparations, Chemical Properties and the Vibrational Spectra of M oV 02( 0 2PC12) * POCI3 und M o02Cl2 * P0C13  
 Abstract    Dichlorophosphate, molybdenum (V), molybdenum (VI), vibrational spectra Polymeric M0O2 (O2PCI2) • POCI3 1 is obtained by the reaction of M0CI5 and P 203Cl4, while MoOaCla-POCla 2 is formed by passage of CI2O into a solution of M0CI5 in POCI3. From magnetic measurements and I R data it appears that 1 contains no Mo-O-Mo system but Mo-O-P-O-Mo bridges. The I R and R am an spectra of 2 were assigned by comparison with the spectrum of Mo0 2 Cl2-H20 . 
  Reference    (Z. Naturforsch. 28b, 148—152 [1973]; eingegangen am 29. Januar 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0148 
 Volume    28 
28Author    Requires cookie*
 Title    Alumimum(III) Derivatives of Monofunctional Bidentate S ch iff Bases  
 Abstract    S c h if f bases, aluminium complexes, elemental analysis, molecular weights, IR spectra. Reactions of aluminium zso-propoxide with monofunctional bidentate S c h if f bases having the general formula 2-HOCI0H6CH :NR (where R = C2H5, n-C3H7, z'so-C3H7, n-C4H9, zso-C4Hm , sec-C4H9, tert-C4H9 and C6H5) in different stoichiometric ratios have yielded 
  Reference    (Z. Naturforsch. 28b, 153—157 [1973]; received January 30 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0153 
 Volume    28 
29Author    O.P S, M. N.Requires cookie*
 Title    Magnetic Studies of Cerium Ammonium Sulphate in Relation to Crystal Structure Applied Physics Laboratories  
 Abstract    Magnetism, rare earth, crystal structure The magnetic anisotropy and principal magnetic susceptibility of the single crystal of cerium ammonium sulphate has been measured and the results obtained have been discussed in the light of crystalline field theory. I t has been observed that the cubic field in cerium ammonium sulphate is very much stronger and the contribution of the rhombic field is almost negligible. The predominance of the cubic field over the rhombic field may also be due to surrounding of the cerium ion by octahedron of water molecules with their negatively charged oxygen atoms pointing towards the central Ce3+ ion. The relative orientation of the atomic groups with different ions in the unit cell makes the resultant anisotropy smaller. 
  Reference    (Z. Naturforsch. 28b, 158—160 [1973]; received January 1/30 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0158 
 Volume    28 
30Author    W. G., H.J K, R. L., H. H. RuppRequires cookie*
 Title    Physikalische Eigenschaften kristallisierter Dichlorobis(isonitril)platin(II)-Komplexe Physical Properties of Crystallized Dichloro(bis-isonitrile)platinum(II)complexes  
 Abstract    Intermolecular metal interactions, optical spectra, one-dimensional metals The properties of some new dichlorobis (aryl-isonitrile) platinum (II) complexes are given. The optical reflexion spectra of the compounds in their colored modification depend strongly on the strength of the intermolecular metal interactions. It is shown that the solid state properties are influenced heavily by the steric requirements of the isonitrile ligands. 
  Reference    (Z. Naturforsch. 28b, 161—163 [1973]; eingegangen am 4. Dezember 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0161 
 Volume    28 
31Author    Requires cookie*
 Title    Planare Dicarbonylrhodium(I)-und -iridium(I)-Komplexe mit polarisierbaren aromatischen Liganden Planar Dicarbonylrhodium(I) and Iridium(I) Complexes with Polarizable Aromatic Ligands  
 Abstract    M etal com plexes, colum nar stru ctu re, m etal-m etal interactions, IR -sp ectra 
  Reference    (Z. Naturforsch. 28b, 164—167 [1973]; eingegangen am 22. Dezember 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0164 
 Volume    28 
32Author    Requires cookie*
 Title    Schichteinlagerungsverbindungen des Niob-und Tantaldisulfids mit n-Alkylaminen Layer Intercalation Compounds of Niobium and Tantalum Disulfide with n-Alkylamines  
 Abstract    R o ber t S chö llh orn, E rw in Sick und A rm in W eiss In stitu t Sulfides, transition m etals, intercalation com pounds, alkylam ines N b S 2 and T aS2 react w ith «-alkylam ines to form intercalation com plexes sim ilar to those observed w ith T iS 2. The arrangem ent of the guest m olecules in the interlayer space is dom inated by the interaction host lattice-am ine nitrogen, if the alkyl chain of the am ine contains 4 to 9 C -atom s. In com plexes containing 12 to 18 C-atoms per alk yl chain, the van der W aals interaction betw een the alkyl chains is essentially responsible for the sterical arrangem ent of th e intercalated molecules. In vestigation s w ith n -octadecylam ine-X bS2 and oleylam ine-N bS2 in the tem perature range of 2 0 -1 20°C lead to the observation of severval reversible phase transitions. These transitions are caused by conform ational changes of the gu est m olecules as w ell as by changes in the ratio R X H 2:XbS2. 
  Reference    (Z. Naturforsch. 28b, 168—171 [1973]; eingegangen am 24. Januar 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0168 
 Volume    28 
33Author    Requires cookie*
 Title    Schichteinlagerungsverbindungen des Niobdisulfids und Tantaldisulfids m it Carbonsäureamiden, Harnstoff und Harnstoffderivaten Layer Intercalation Compounds of Niobium Disulfide and Tantalum Disulfide with Amides, Urea and Urea Derivatives  
 Abstract    R o b e r t S c h ö t . l h o r n und A r m in W e i s s In stitu t Intercalation com pounds, niobium disulfide, tantalum disulfide, amides, urea derivatives N b S 2 and T aS2 react w ith am ides, urea and urea derivatives to form layer intercalation com plexes. 20 com pounds of X bS2 and 13 com pounds of T aS2 have been characterized by their la ttice dim ensions and lim iting com positions. Partly covalent interactions betw een guest m olecules and h ost lattice seem to be of im portance in the form ation of the com pounds described. 
  Reference    (Z. Naturforsch. 28b, 172—175 [1973]; eingegangen am 25. Januar 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0172 
 Volume    28 
34Author    H., P. F., Friedemann TiedtRequires cookie*
 Title    Metallkomplexe des cancerostatisch aktiven iV-Lost-Derivates Chloräthylendiamin Metal Complexes of the Cancerostatic iV-Mustard Derivative iVjiV'-Di-ß-chlorethylethylenediamine  
 Abstract    N, N '-D i-ß -c h lo r eth y le th y len ed ia m in e, N -m u sta r d d e r iv a tiv e , ca n c er o sta tic m e ta l c o m p lex e s 
  Reference    (Z. Naturforsch. 28b, 176—181 [1973]; eingegangen am 30. Januar 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0176 
 Volume    28 
35Author    HansG. Biedermann, Klaus WichmannRequires cookie*
 Title    Konzentrations-und temperaturabhängige Koordination von Metallionen an Poly-4-vinylpyridin Anorganisch-chemisches Laboratorium der Technischen U n iversität München  
 Abstract    The compositions of some precipitations of CoCl2 and NiJ2 with poly-4-vinylpyridine in dependence on the temperature and the concentration of the poly-4-vinylpyridine solution in ethyl alcohol are determined and discussed. 
  Reference    (Z. Naturforsch. 28b, 182 [1973]; eingegangen am 9. März 1973) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0182 
 Volume    28 
36Author    Requires cookie*
 Title    G. Hagele et al. * Kernresonanzspektrospkopische Untersuchungen 185 Kernresonanzspektroskopische Untersuchungen an CH3(/>-CH3OC6H4)PS2Na * 2 H 20  
 Abstract    -Spectroscopic In v estig a tio n s on CH3(/>-CH3OC6H 4)P S 2Na * 2 H 20 G er h a rd H a g e l e , K laus D iem e r t und W ilhelm K uc h e n 1H -N M R , sp e c tra la n a ly sis, ^ -m e th o x y p h e n y lp h o s p h o r u s com p ou n d 
  Reference    (Z. Naturforsch. 28b, 185—187 [1973]; eingegangen am 15. Dezember 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0185 
 Volume    28 
37Author    W.Requires cookie*
 Title      
 Abstract    Ionization, excitation energies, thiocum ulenes The H e(I) photoelectron(PE) spectra, th e core binding energies according to X-ray pho-toelectron(ESCA) spectra, and the gas phase far U V spectra of the bent cum ulenes sulfur dioxide, Af-ter£-butylsulfinylamine, and di-/er/-butylsulfurdiim ide are presented. The P E spectra are discussed by com paring th em to th ose of th e linear carbon analogues as carbon dioxide, terZ-butylisocyanate and di-/er/-butylcarbodiim ide. Modified CNDO-CI calculations give satisfying interpretations of the su b stitu en t effects. 
  Reference    (Z. Naturforsch. 28b, 188—195 [1973]; eingegangen am 27. November 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0188 
 Volume    28 
38Author    P. ShRequires cookie*
 Title    Furoquinolines Part V I*: Synthesis o f Furo(2,3-b)quinolines  
 Abstract    anm u g a m a n d R . P a l a n ia p p a n D epartm ent o f Organic Chemistry, 3-V inyl-2-quinolones, 3-acetoxy-2, 3-dihydrofuro (2,3-b)-quinolines, furo(2,3-b)quinolines 
  Reference    (Z. Naturforsch. 28b, 196—199 [1973]; received December 4 1972) 
  Published    1973 
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 TEI-XML for    default:Reihe_B/28/ZNB-1973-28b-0196.pdf 
 Identifier    ZNB-1973-28b-0196 
 Volume    28 
39Author    Bruker Physik, Ag, ForchheimB. KarlsruheRequires cookie*
 Title      
 Abstract    In stitut für Anorganische Chemie der U niversität Erlangen-Nürnberg und V ik t o r F o r m a c e k O rganom etallic com plex, europium com plex, param agnetic N M R sh ift reagent, tem perature dependence of param agnetic shifts, 13C-NM R 
  Reference    (Z. Naturforsch. 28b, 200—206 [1973]; eingegangen am 14. Dezember 1972) 
  Published    1973 
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 Identifier    ZNB-1973-28b-0200 
 Volume    28 
40Author    Requires cookie*
 Title    Mechanismus der Wasserstoffübertragung bei der homogenen katalytischen Hydrierung von Malein-und Fumarsäuredimethylester mit IrCl(CO)(P<I>3) 2 Mechanism of Hydrogen Transfer in Homogeneous Catalytic Hydrogenation of Maleic-and Fumaric-Dimethyl Ester with IrCl(CO)(PC)3 ) 2  
 Abstract    H y d r o g en transfer, h o m o g en eo u s c a ta ly s is 
  Reference    (Z. Naturforsch. 28b, 207—212 [1973]; eingegangen am 10. November 1972) 
  Published    1973 
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 TEI-XML for    default:Reihe_B/28/ZNB-1973-28b-0207.pdf 
 Identifier    ZNB-1973-28b-0207 
 Volume    28 
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