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'IR spectra' in keywords Facet   Publication Year 1981  [X]
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1981[X]
1Author    Birgit Lehnis, Joachim SträhleRequires cookie*
 Title    Synthese und Kristallstruktur von C83(AuBr 4 ) 2 Br3 Synthesis and Crystal Structure of Cs3(AuBr4) 2 Br 3  
 Abstract    Cs3(AuBr4)2Br3 is obtained in the form of red needles by adding the stoichiometric amount of CsBr to a solution of HAuBr4 and Br3~ in aqueous HBr. The salt decomposes slowly at room temperature to form a mixed-valent, cubic bromo aurate(I,III), in which the linear AuBr 2 ~ ions are partially substituted by Br3~ ions. At 140 °C Cs 2 Au 2 Bre and CsBr are formed. Cs3(AuBr4) 2 Br3 crystallizes monoclinic with four formula units in the space group P2i/c. The structure is built up by AuBr 4 ~ and Br3~ anions and Cs+ cations. An average Au-Br distance of 242.2 pm was found for the square planar AuBr 4 ~ ion. The linear Br3~ groups are almost symmetrical with Br-Br distances of 254.0 and 256.2 pm. Therefore only two vibrations are observed in the IR spectrum: Vas = 172, <5 = 56 cm -1 . The absorptions of the AuBr 4 _ groups are: vas = 250, <5as= 113, y — 102 cm -1 . 
  Reference    Z. Naturforsch. 36b, 1504—1508 (1981); eingegangen am 8. September 1981 
  Published    1981 
  Keywords    Synthesis, IR Spectra, Crystal Structure 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1504.pdf 
 Identifier    ZNB-1981-36b-1504 
 Volume    36 
2Author    Emmanuel Chukwuemeka OkaforRequires cookie*
 Title    The Metal Complexes of Heterocyclic /?-Diketones and their Derivatives, Part VIII Synthesis, Structure, Proton NMR and Infrared Spectral Studies of the Complexes-Phenyl-3-methyl-4-trifluoroacetyl-pyrazolone-5 (HPMTFP)  
 Abstract    of Al(in), Fe(ffl), Co(ffl), Rh(m), In(ffl), and Zr(IV) with l New complexes of Al(III), Fe(III), Co(III), Rh(III), In(III) and Zr(IV) with 1-phenyl-3-methyl-4-trifluoroacetyl-pyrazolone-5, (HPMTFP), have been synthesized and charac-terized by means of elemental analyses, conductivity and magnetic moment measurements, proton NMR and infrared spectroscopy. It is concluded that the ligand, HPMTFP, reacts as a bidentate enol forming neutral metal chelates. The PMR spectra of chelates suffi-ciently soluble in deuterated NMR solvents were recorded and studied. The IR spectra are measured between 4000-200 cm -1 and assignments are proposed for the observed fre-quencies. The M-0 stretching frequency follows the order: AI > Rh > Fe — Co = Zr > In. 
  Reference    Z. Naturforsch. 36b, 213—217 (1981); received September 17 1980 
  Published    1981 
  Keywords    Metal Complexes, PMR Spectra, IR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0213.pdf 
 Identifier    ZNB-1981-36b-0213 
 Volume    36 
3Author    Römer, H. Scholl, H. Budzikiewicz, H. Korth, G. PulvererRequires cookie*
 Title     
 Abstract    The structure elucidation of several minor phenazine pigments of Pseudomonads is described. 4-Hydroxyphenazine-l,6-dicarboxylic acid dimethyl ester, 2,3-dihydroxy-phenazine, 2,3,7-trihydroxyphenazine, 4-hydroxyphenazine-l-carboxylic acid, 2,3-di-hydroxyphenazine-l-carboxylic acid, 2,6-dihydroxyphenazine-l-carboxylic acid and 2,3,7-trihydroxyphenazine-l,6-dicarboxylic acid are new phenazine derivatives. The distribu-tion of phenazines in the genus Pseudomonas is investigated. 
  Reference    Z. Naturforsch. 36b, 1037—1046 (1981); eingegangen am 27. März 1981 
  Published    1981 
  Keywords    Phenazines, Bacterial Constituents, Pseudomonads, NMR Spectra, IR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1037.pdf 
 Identifier    ZNB-1981-36b-1037 
 Volume    36 
4Author    G. Peters, W. PreetzRequires cookie*
 Title    Darstellung und Charakterisierung von Tetrabutylammonium-Tetraiodooxotechnetat(V), (TBA) [TcOI4] Preparation and Characterization of Tetrabutylammonium Tetraiodooxotechnetate(V), (TBA)[TcOI4]  
 Abstract    Pure (TBA)[TcOIi] is prepared from (TBA)[TcOCl4] by ligand exchange reaction with Nal in acetone. The vibrational spectra indicate C4v symmetry for the complex ion. On excitation with the 514.5 nm line of an Ar-laser a resonance Raman spectrum is obtained showing v(TcO) = 996 cm -1 and four of its overtones, symmetrically surrounded by groups of bands arising as well from the sums as from the differences of frequencies with the other fundamentals. In contrast to the ligand exchange reaction the reduction of Tc04 _ with conc. HI yields products always contaminated with polyiodides. The extremely strong Raman scatterer (TBA)l3 is detected by a characteristic doublet at 111 and 116 cm -1 and even small amounts of it cover the Raman spectrum of (TBA)[TcOI4]. 
  Reference    Z. Naturforsch. 36b, 138—140 (1981); eingegangen am 17. November 1980 
  Published    1981 
  Keywords    Tetraiodooxotechnetate(V), Resonance Raman Spectra, IR Spectra, UV Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0138.pdf 
 Identifier    ZNB-1981-36b-0138 
 Volume    36 
5Author    Ekkehard Lindner, JuanCarlos WuhrmannRequires cookie*
 Title    Synthese und Stabilisierung von (Benzoyl-und Pentafluorbenzoyloxy)diphenyIphosphan und Vergleich mit den entsprechenden isomeren Aroyldiphenylphosphanoxiden Synthesis and Stabilization of (Benzoyl-and Pentafluorobenzoyloxy)diphenylphosphane and Comparison with the Corresponding Isomeric Aroyldiphenylphosphane Oxides  
 Abstract    (Benzoyloxy)-and (pentafluorobenzoyloxy)diphenylphosphanes RC(0)0PPh2 (2a, b) [R = C6H5 (a), C6F5 (b)] can be obtained by reaction of ClPPh2 (1) with Na02CC6H5 and Ag02CCeF5, respectively [eq. (1)]. Oxidation of 2a with molecular oxygen yields (benzoyl-oxy)diphenylphosphane oxide (3a) [eq. (2)]. The complexes (0C)5CrPPh20C(0)R (oa, b) are formed by the action of Na2OCC6Hs and Ag02CC6Fs, respectively on (OC)5CrPPh2Cl (4) [eq. (3)]. The chemical and spectroscopical properties of the (aroyloxy)diphenylphosphanes (2 a, b) are compared with the corresponding aryldiphenylphosphane oxides. 
  Reference    Z. Naturforsch. 36b, 297—300 (1981); eingegangen am 28. November 1980 
  Published    1981 
  Keywords    (Pentafluoro)(benzoyloxy)diphenylphosphanes, Pentacarbonylchromium Complexes, IR Spectra, NMR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0297.pdf 
 Identifier    ZNB-1981-36b-0297 
 Volume    36 
6Author    H. Haeuseler, A. Cansiz, H. D. LutzRequires cookie*
 Title    Zur Kenntnis des Aluminiumsulfids: a-Al2S3 und Al2S3(tetr.) On Aluminium Sulfide: a-Al2S3 and Al2S3(tetr.)  
 Abstract    Tetragonal aluminium sulfide crystallizing with the spinel defect structure of the /S-In2S3 type has been prepared at ambient pressure. IR and Raman spectra of this compound and of C1-AI2S3 are reported and discussed in relation to their crystal structures. 
  Reference    Z. Naturforsch. 36b, 532—534 (1981); eingegangen am 19. Januar 1981 
  Published    1981 
  Keywords    Aluminium Sulfide, IR Spectra, Raman Spectra, Spinel Defect Structure 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0532.pdf 
 Identifier    ZNB-1981-36b-0532 
 Volume    36 
7Author    Ekkehard FluckRequires cookie*
 Title    Rüdiger Thamm  
 Abstract    Primary phosphanes, RPH2, react with carbonic ester chlorides, C1COOR', in the presence of K 2 C0 3 to yield the title compounds RPHCOOR' and RP(COOR') 2 . The NMR data of the novel compounds are presented and discussed. Other physical and some chemical properties are described. 
  Reference    Z. Naturforsch. 36b, 910—916 (1981); eingegangen am 11. Mai 1981 
  Published    1981 
  Keywords    Carbonic Ester Phosphides, Mass Spectra, IR Spectra, NMR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0910.pdf 
 Identifier    ZNB-1981-36b-0910 
 Volume    36 
8Author    HerbertW. Roesky, Erwin WehnerRequires cookie*
 Title    Reactions of 3,4-Dichloro-l,2,5-thiadiazol  
 Abstract    SN2C2CI2 prepared from (CN)2 and S2CI2 reacts with BCI3, SbCls and SO3 to yield the 1:1 adducts, TiCU forms an 1:2 adduct. The adducts were characterized on the basis of IR and Raman spectra. SN2C2CI2 is alkylated with (C2H5)30 + BF4~ at one of the nitrogen atoms. The results are compared with adducts of S2N2CO with Lewis acids. 
  Reference    Z. Naturforsch. 36b, 1247—1250 (1981); eingegangen am 22. Juni 1981 
  Published    1981 
  Keywords    Sulfur-Nitrogen Compounds, Lewis Acids, Raman Spectra, IR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1247.pdf 
 Identifier    ZNB-1981-36b-1247 
 Volume    36 
9Author    Ekkehard Lindner, Claus-Peter Krieg, Sigurd Hoehne, Axel RauRequires cookie*
 Title    Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen Heterocyclen, XXTTT [1] Untersuchungen zur P=S-heteroanalogen Cyclocotrimerisierung von Alkinen mit Nitrilen bzw. Isocyaniden Preparation and Properties of, and Reactions with, Metal-Containing Heterocycles, XXIII [1] Investigations on P=S-Heteroanalogous Cyclocotrimerization of Alkynes with Nitriles and Isocyanides, Respectively  
 Abstract    Structure of [(OC)4MnSP(CH 3)2]2, The dimanganadiphosphadithiacyclohexadiene [(OC)4MnSP(CH 3)2]2 (1) crystallizes in the H,C CH, \ / 3 / P =\ (OC).Mn Mn(CO), * \ / S=P /\ HjC CHj 1 /-PC CH * (OC)tMn I CH, * L Y\ CH, (OCULMn | CHj . CO \ ^ C" \R' L \ t-Bu C6H" C6H5 R'NC a b c PR'3 d R = C02CHJ 3a-d orthorhombic space group Pbca with Z = 4. Attempts to cyclotrimerize the intermediate 
  Reference    Z. Naturforsch. 36b, 1487—1492 (1981); eingegangen am 28. Juli 1981 
  Published    1981 
  Keywords    Isocyanide Complexes of Heteromanganacyclopentadienes, Mass Spectra, IR Spectra, NMR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1487.pdf 
 Identifier    ZNB-1981-36b-1487 
 Volume    36 
10Author    Ahmet Keçeci, Dieter RehderRequires cookie*
 Title    IR, 31 P-, 55 Mn-und 185 187 Re-NMR spektroskopische Untersuchungen an einigen Carbonylmangan-und -rhenium-Komplexen  
 Abstract    The IR and NMR spectra of the complexes [M(CO)e]Cl • HCl (M = Mn: 1, M = Re: 2), M(C0)5C02Et (M = Mn: 3, M = Re: 4), [Mn(CO)5PR3][PF6] (5; PR3 = PPh(OPh)2: a, P(n-Pr)3: b, PHPh2: c, PPh(NEt2)2: d, P(p-C6H4F)3: e), [Be(CO)5PHPh8][FF6] (6 c), Mn2(CO)s(PR3)2 (7) and Re2(CO)g(PHPh2)2 (8c) are discussed in the context of a-and ^-interactions in the metal-ligand system and compared with 51 V NMR data of the analogous isoelectronic and isostructural carbonylvanadates (—I). On the basis of these results, the phosphines are arranged in the order of decreasing integral ligand strength according to a>b>c>d. The 55 Mn shielding of 5 is greater than that of 1, which is explained by strong (x-interactions and correspondingly large e-ai* splitting dominating the paramagnetic deshielding term in the pseudooctahedral complexes of type 5. The only rhenium compound accessible to NMR is 2, for which the 185 Re and 187 Re resonances were obtained. 31 P coordination shifts are positive for all complexes. Spectroscopic data for 7c show that this complex presumably has the structure (CO)sMn-Mn(CO)3(PHPh2)2, contrasting 7 a, 7 b, 7d and 7e (local D4d symmetry). 
  Reference    (Z. Naturforsch. 36b, 20—26 [1981]; eingegangen am 6. Oktober 1980) 
  Published    1981 
  Keywords    Carbonylphosphinemanganese, Car bony lphosphinerhenium, IR Spectra, Manganese NMR Spectra, Rhenium NMR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0020.pdf 
 Identifier    ZNB-1981-36b-0020 
 Volume    36 
11Author    B. P. Baranwal, G. K. Parashar, R. C. MehrotraRequires cookie*
 Title    Penta-Coordinated Complexes of Bis(2,4-pentanedionato) Copper(II) with Some Oxygen Donor Organic Solvents  
  Reference    (Z. Naturforsch. 36b, 42—44 [1981]; received June 30 1980) 
  Published    1981 
  Keywords    Bis(2, 4-pentanedionato) Copper(II) Complexes, ER Spectra, Magnetic Moments, IR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0042.pdf 
 Identifier    ZNB-1981-36b-0042 
 Volume    36 
12Author    W. Preetz, H. SchulzRequires cookie*
 Title    Darstellung und spektroskopische Charakterisierung von Tetrakis (chlor o -iodo ) oxalato -osmaten (IV )  
 Abstract    On treatment of [OsLjox] 2-with Cl~ the mixed complexes [OsClnI4_nox] 2 -, n = 1, 2, 3, are formed. The isolation and complete separation of the differently coloured geometric isomers is achieved by ion exchange chromatography on diethylaminoethyl cellulose. The IR and Ra spectra are assigned according to point groups Czv, Cs, Ci. The mutual influence of ligands, especially by the high trans effect of I, is indicated by shifts of the distinct vibrational and electronic bands. The observed splittings of I -> Os transitions are attributed to the different groupings I-Os-I, I-Os-Cl, and I-Os-O, important for the distinction of stereoisomers. The CT-bands as well as the d-d-transitions show batho-chromic shifts with increasing number of I-ligands. Up to five spin-orbit components in the NIR region are well resolved. The assignment is improved by the electronic Ra spectra. The fine structure of some d-d-bands originates from coupling with symmetric vibrational modes. 
  Reference    (Z. Naturforsch. 36b, 62—69 [1981]; eingegangen am 10. Oktober 1980) 
  Published    1981 
  Keywords    Tetrakis(chloro-iodo)oxalato-osmates(IV), UV-VIS-NIR Spectra, IR Spectra, Raman Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0062.pdf 
 Identifier    ZNB-1981-36b-0062 
 Volume    36 
13Author    ThF. Zafiropoulos, S. P. Perlepes, P. V. Ioannou, J. M. Tsangaris, A. G. GalinosRequires cookie*
 Title    Non Deprotonated Metal Complexes of the Bis-amide Tetradentate Ligand N,N' -(Dipicolyl) -1,8-naphthylenediamine  
 Abstract    Complexes of the general formula M(LH2)Cl2 • 2 H2O, where LH2 = N,N'-(dipicolyl)-1,8-naphthylenediamine and M = Mn, Ni and Cu, have been prepared. None of the metal ions used promote amide deprotonation on coordination: LH2 acts as a tetradentate ligand. Distorted octahedral stereochemistries for the complexes in the solid state have been proposed utilising microanalyses, magnetic susceptibilities, molar conductance measure-ments and IR and visible spectral data. The Ni(II) complex exhibits evidence of a poly-meric structure. 
  Reference    (Z. Naturforsch. 36b, 87 [1981]; received July 14 1980) 
  Published    1981 
  Keywords    N, N'-(Dipicolyl)-l, 8-naphthylenediamine, Bis-amide Tetradentate Ligand, Secondary Acid Amide Groups, Non-Deprotonated Complexes, IR Spectra 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0087.pdf 
 Identifier    ZNB-1981-36b-0087 
 Volume    36