| | 1 | Author
| Hans Bock, Ralph Dammel | Requires cookie* | | | Title
| Photoelektronen-Spektren und Moleküleigenschaften, 110 [1,2] Tricyanmethan-Derivate X—C(CN) 3 Photoelectron Spectra and Molecular Properties, 110 [1, 2] Tricyanomethane Derivatives X-C(CN) 3  | | | | Abstract
| The photoelectron spectra of tricyanomethane derivatives X—C(CN) 3 with substituents X = H, CH 3 , Br and C 6 H 5 have been recorded and are assigned based on MNDO calculations as well as on radical cation state comparison with the iso(valence)electronic P(CN) 3 , within the series of cyanomethanes H 4 _"C(CN)", and with each other. For HC(CN) 3 , no traces of the isomeric dicyano, ketimine HN = C=C(CN) 2 are detected in the gas phase. Tricyanomethylbenzene, H 5 C 6 —C(CN) 3 , exhibiting the highest first ionization energy of any known singly acceptor substi-tuted phenyl derivative, demonstrates the tremendous electron withdrawing effect of the -C(CN) 3 group. Ausgangspunkt | | | |
Reference
| Z. Naturforsch. 42b, 315—322 (1987); eingegangen am 12. September 1986 | | | |
Published
| 1987 | | | |
Keywords
| Tricyanomethane Derivatives, PE Spectra, MNDO Calculations | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/42/ZNB-1987-42b-0315.pdf | | | | Identifier
| ZNB-1987-42b-0315 | | | | Volume
| 42 | |
| 2 | Author
| Dekang Shen, Lizhi Zhu, Liangzhong Zhao | Requires cookie* | | | Title
| Synthesis and Photoelectron Spectroscopy of Spin Labeled Metal Complexes | | | | Abstract
| Two new spin labeled metal complexes; cobalt(II) bis(2,2,6,6-tetramethyl-l-oxyl-4-piperidyl p-salicylaldiminobenzoate) (3), copper(II) bis(2,2,6,6-tetramethyl-l-oxyl-4-piperidyl-p-salicyl-aldiminobenzoate) (4) were prepared. The synthesis of amino derivatives of nitroxide compounds were improved by a simplified synthetic route. The XPS spectra of 3 and 4 were determined. The observed N Is, Cu 2p and Co 2p spectra of spin labeled metal complex are discussed. | | | |
Reference
| Z. Naturforsch. 42b, 610—612 (1987); received November 11 1986/January 12 1987 | | | |
Published
| 1987 | | | |
Keywords
| Nitroxide, Spin Labeled Metal Complex, PE Spectra | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/42/ZNB-1987-42b-0610.pdf | | | | Identifier
| ZNB-1987-42b-0610 | | | | Volume
| 42 | |
| 4 | Author
| Herbert Binder, Dieter Sellmann | Requires cookie* | | | Title
| Röntgen-photoelektronenspektroskopische Untersuchungen an Pentacarbonyl- Chrom-und -Wolfram-Komplexen mit Stickstoffliganden c X-ray Photoelectron Studies of Pentacarbonyl Chromium and Tungsten Complexes with Nitrogen Ligands | | | | Abstract
| The ionization energies of some chromium and tungsten pentacarbonyl complexes of the type [M(CO)5] xL (L = N2H2, N2H4, NH3; x = 1 or 2 for N2H4 or a; = 1 for N2H2) are reported. The results are discussed in terms of the effects of tr-donor and 7r-acceptor bonds on XPS data. Satellite lines, which can be explained in terms of a shake-up process, give information about the nature of the metal-ligand bond. These shake-up processes are, to a large extent, specific to the atoms of the acceptor groups. The spectroscopic and chemical importance of multi-peak structures of XPS bands is emphasised. | | | |
Reference
| Z. Naturforsch. 33b, 173—179 (1978); eingegangen am 21. Dezember 1977 | | | |
Published
| 1978 | | | |
Keywords
| X-ray, PE Spectra, Monosubstituted Pentacarbonyls, Chromium, Tungsten | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/33/ZNB-1978-33b-0173.pdf | | | | Identifier
| ZNB-1978-33b-0173 | | | | Volume
| 33 | |
| 6 | Author
| K. Barlos, Heinrich Nöth | Requires cookie* | | | Title
| Beiträge zur Chemie des Bors, CVIII [1] Synthese und Konformation yon N.N'-Bis(boryl)-N.N'-dimethylhydrazinen Contributions to the Chemistry of Boron, CVIII [1] Synthesis and Conformation of N,N , -Bis(boryl)-N,N'-dimethylhydrazines N,N'-Bis(methylboryl)-N,N'-dimethyl-hydrazine, N,N'-Bis(dichlor-boryl)-N,N | | | |
Reference
| (Z. Naturforsch. 35b, 125—132 [1980]; eingegangen am 10. August 1979) | | | |
Published
| 1980 | | | |
Keywords
| -dimethyl-hydrazine, Conformation, NMR Spectra, PE Spectra | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/35/ZNB-1980-35b-0125.pdf | | | | Identifier
| ZNB-1980-35b-0125 | | | | Volume
| 35 | |
| 8 | Author
| Hans Bock, Sitki Aygen, Bahman Solouki | Requires cookie* | | | Title
| Gasphasen-Reaktionen, 35 [1] Benzseleniren als kurzlebiges Zwischenprodukt in der Pyrolyse von 1.2.3-Benzoselenodiazol zu 6-Fulvenselon Benzselenirene as Short-lived Intermediate in the Pyrolysis of 1,2,3-Benzoselenodiazole to 6-Fulvenselone | | | | Abstract
| In the pyrolysis of 1,2,3-benzoselenodiazole using a short-distance furnace, a short-lived intermediate is detected photoelectron spectroscopically. Mass spectra recorded under similar conditions suggest an isomer CöHiSe rearranging to the more stable final product 6-fulveneselone. The ionization pattern obtained by computerized spectra stripping is assigned to benzselenirene by molecular radical cation state comparison based on MNDO calculations. | | | |
Reference
| Z. Naturforsch. 38b, 611—615 (1983); eingegangen am 24. Januar 1983 | | | |
Published
| 1983 | | | |
Keywords
| PE Spectra, Short-lived Intermediates, Selenium Compounds | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0611.pdf | | | | Identifier
| ZNB-1983-38b-0611 | | | | Volume
| 38 | |
| 10 | Author
| Bahman Solouki, Hans Bock, Oskar Glemser | Requires cookie* | | | Title
| Photoelectron Spectra and Molecular Properties, LXIX [1,2] Molecules with S—N Multiple Bonds | | | | Abstract
| The He(I) photoelectron spectra of the following molecules with S—N multiple bonds S=N /-N. 4 ,h O R=CH3/CF3/Ct n = 2,3 are assigned by radical cation state comparison between the chemically related compounds as well as by MO models based on CNDO calculations. From the ionisation energies of the 0 = S = 0/HN = S = 0 pair a parameter OSN can be deduced, which proves to be useful in the discussion of other SN compounds like R3C-N=S = 0 and RN = S = NR. | | | |
Reference
| Z. Naturforsch. 33b, 284—290 (1978); eingegangen am 8. September 1977 | | | |
Published
| 1978 | | | |
Keywords
| PE Spectra, MO Interpretation, Molecules with S—N Bonds | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/33/ZNB-1978-33b-0284.pdf | | | | Identifier
| ZNB-1978-33b-0284 | | | | Volume
| 33 | |
| 11 | Author
| H. Ans Bocka, W. Olfgang Kaima, Mitsuo Kira3, LouisR. Eneb, H. Einz-G, V. Ünther, Ieheb | Requires cookie* | | | Title
| Radikalionen, 61 [ 1 , 2 ] Dialkylamino-substituierte Acetylene und Allene: Ionisation, Oxidation und AlCI3-katalysierte Wasserstoffübertragung Radical Ions, 61 [1, 2] D ialkylam ino-substituted Acetylenes and Allenes: Ionisation, O xidation and AlCl3-Catalyzed Hydrogen Transfer | | | | Abstract
| The photoelectron (P E) spectra of bis(dialkylam ino) acetylenes R 2N — C = C —N R 2 and o f tet-rakis(dialkylam ino) allenes (R 2N)2C = C = C (N R 2)i with R = C H 3, C2H 5 exhibit characteristic ionization patterns which are assigned to re radical cation states of the two m olecular halves twisted against each other. The low first ionization potentials betw een 7.0 eV and 7.7 eV stim u lated attempts to oxidize using A1C13 in H 2CC12 or D 2CC12. The hyperfine structured E SR spectra observed can be unequivocally assigned to the ethylene radical cations R 2N — HC = CH — N R 2 © which are formed from the obviously non-persistent species R2N —C ^ C — N R 2 ® via a hydrogen transfer. During the oxidation o f the dialkylam ino-substituted allenes no paramagnetic interm edi ates could be d etected , presumably due to a rapid dimerisation o f the allene radical cation (R 2N)2C = C = C (N R 2)2'®. | | | |
Reference
| Z. Naturforsch. 39b, 763—770 (1984); eingegangen am 28. N ovem ber 1983 | | | |
Published
| 1984 | | | |
Keywords
| D ialkylam ino Substituted n Systems Radical Cations, ESR Spectra, PE Spectra | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/39/ZNB-1984-39b-0763.pdf | | | | Identifier
| ZNB-1984-39b-0763 | | | | Volume
| 39 | |
| 12 | Author
| Hans Bock, R. Dammel, DarrylD. Desmarteau | Requires cookie* | | | Title
| Gasphasen-Reaktionen, 59 [1, 2] Die Pyrolysen von Trifluormethylazid und Hexafluorazomethan Gas Phase Reactions, 59 [1, 2] The Pyrolyses of Trifluoromethylazide and Hexafluoroazomethane | | | | Abstract
| Trifluoromethyl azide decomposes in a low-pressure flow system at rather high temperatures by splitting off N 2 . The nature of the resulting products depends largely on the wall material of the pyrolysis tube: using molybdenum above 1120 K, FCN is observed exclusively. Neither F 2 C=NF nor F 3 C—N=N—CF 3 can be detected as intermediates by comparing their PE spectra with those continuously recorded while increasing the temperature. F 3 C—N = N — CF 3 fragments already at 870 K to give N 2 and F 3 C-CF 3 . The PE spectra of F 3 CN 3 and F 2 C=NF are assigned based on MNDO calculations. | | | |
Reference
| Z. Naturforsch. 42b, 308—314 (1987); eingegangen am 12. September 1986 | | | |
Published
| 1987 | | | |
Keywords
| Trifluoromethylazide, Zram-Hexafluoroazomethane, Perfluoromethanimine, Gas Phase Pyrolysis, PE Spectra, MO Calculations | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/42/ZNB-1987-42b-0308.pdf | | | | Identifier
| ZNB-1987-42b-0308 | | | | Volume
| 42 | |
|
