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1	Author	V. Ogler, F. Ranz, A. N. Eugebauer	Requires cookie*
	Title	H elm u t
	Abstract	The striking similarities of the hypsochromic shifts of the longest wavelength absorption o b served in the serie 1—3 and 4 —6 are rationalized by means o f sim ple molecular orbital theory.
	Reference	Z. Naturforsch. 39b, 1790—1794 (1984); received May 10 1984
	Published	1984
	Keywords	Electronic Spectra, Betaines, Verdazyls
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	TEI-XML for	default:Reihe_B/39/ZNB-1984-39b-1790.pdf
	Identifier	ZNB-1984-39b-1790
	Volume	39

2	Author	Sn Bakalova, A. Georgieva, P. Nikolov, E. Stanoeva	Requires cookie*
	Title	Dihydronaphthalenone Carboxylates - Spectral Characteristics and Structure
	Abstract	The absorption and luminescence characteristics of a group of newly synthesized methyl esters of 2-alkyl (p-substituted-aryl) -aminomethylene-3,4-dihydro-l(2 H)-naphthalenone-4-carboxylic acids have been investigated. The studied compounds may exist in three tautomeric forms. On the basis of comparison of their electronic spectra to those of similar substances, the observed substituent effect on the position of the UV-VIS absorption bands, the IR spectra and the results of PPP-SCF-CI quantum-chemical calculations it is concluded that the keto tautomer predominates in solution.
	Reference	Z. Naturforsch. 52a, 457—461 (1997); received December 31 1996
	Published	1997
	Keywords	Electronic spectra, Tautomerism, Dihydronaphthalenone carboxylates
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	TEI-XML for	default:Reihe_A/52/ZNA-1997-52a-0457.pdf
	Identifier	ZNA-1997-52a-0457
	Volume	52

3	Author	Karin Oldenburg, Arnd Vogler	Requires cookie*
	Title	Electronic Spectra and Photochemistry of Tin(II), Lead(II), Antimony(III), and Bismuth(III) Bromide Complexes in Solution
	Abstract	The electronic spectra o f brom o complexes o f main group metal ions with an s2 electronic configuration (SnBr3~, PbBr3~, PbBr42_, SbBr4~, SbBr63~, BiBr4~, BiBr63~) in acetonitrile show long-wavelength absorption bands which are assigned to metal-centered sp transitions. C om pared to the corresponding chloro complexes the sp bands o f the bromo complexes appear at longer wavelength due to sp/LM C T mixing (LM CT = ligand-to-metal charge transfer). As a result o f this mixing the luminescence which originates from low-energy sp excited states is much weaker than that o f the chloro complexes. M oreover, some o f the bromo complexes (e.g. BiBr4~) undergo a photochemical redox decom position induced by LMCT excitation.
	Reference	Z. Naturforsch. 48b, 1519—1523 (1993); received July 1 1993
	Published	1993
	Keywords	Electronic Spectra, Bromo Complexes, Main Group M etals, Photochemistry
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-1519.pdf
	Identifier	ZNB-1993-48b-1519
	Volume	48

4	Author	Z. Naturforsch	Requires cookie*
	Title	Darstellung, Eigenschaften und elektronische Raman-Spektren von Di(bromo)phthalocyaninatometallaten(III) der Eisengruppe
	Abstract	Synthesis, P ro p erties an d E lectronic R am an Spectra of D i(b ro m o)p h th alo cy an in ato m etalates(III) of the Iron G roup E lem ents Svend Sievertsen, H en d rik Schlehahn, H ein er H om borg Low spin di(bromo)phthalocyaninatometalates of tervalent iron, ruthenium and osmium ([MBr2Pc2-]') are formed by the reaction of [FeBrPc2~] or H[MBr2Pc2 ] (M = Ru, Os) with ex cess bromide in DMF or THF and isolated as ("Bu4N)+ salts. The electronic spectra show the typical J i-jr*-transitions (B, Q, N region) of the Pc2~ ligand together with a number of extra bands due to trip-multiplett and (Pc, Br — » M)CT transitions. vs(MBr) is observed in the resonance Raman (RR) spectrum (RR enhanced for M = Fe, Ru) at 161 cm-1 (Fe), 183 cm4 (Ru) and 192 cm-1 (Os), vas(MBr) at 251 cm4 (Fe), 234 cm-1 (Ru) and 218 cm-1 (Os) in the FIR spectra. The RR spectra obtained by excitation at low absorbance between the B and Q region are dominated by the intraconfigurational 'T 7 — > r 8" transition due to spin orbit split ting of the 2T2g ground state for Fe at 583 cm-1, Ru at 1026/1050 cm-1 and Os at 3131 cm4 . In the MIR resp. NIR spectra vibronically induced transitions are observed for the Ru or Os complex.
	Reference	(Z. Naturforsch. 49b, 50—56 [1994]; eingegangen am 31. August 1993)
	Published	1994
	Keywords	Phthalocyanines, Electronic Spectra, Vibrational Spectra, Electronic Resonance Raman Spectra
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	TEI-XML for	default:Reihe_B/49/ZNB-1994-49b-0050.pdf
	Identifier	ZNB-1994-49b-0050
	Volume	49

5	Author	G. C. Papavassilioua ', G. A. Mousdis3, A. Terzisb, C. P. Raptopoulouh	Requires cookie*
	Title	Similar Compounds
	Abstract	The title compounds (natural low-dimensional semiconductor systems) exhibit strong exci tonic optical absorption bands in the UV spectral region, because of the quantum confinement of excitons, as in the cases of bivalent-metal and trivalent-metal halide complexes. The excitonic bands are shifted to longer wavelengths, approaching those of the corresponding bulk materials, as the anion-size or the anion-dimensionality increases.
	Reference	(Z. Naturforsch. 54b, 109—112 [1999]; received July 3 1998)
	Published	1999
	Keywords	Main Group Metal-Halide Complexes, Electronic Spectra, Excitons
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	TEI-XML for	default:Reihe_B/54/ZNB-1999-54b-0109.pdf
	Identifier	ZNB-1999-54b-0109
	Volume	54

6	Author	Z. Naturforsch	Requires cookie*
	Title	Structural and Spectroscopic Characterization of Two New Cu(II)-Dipeptide Complexes
	Abstract	Two new Cu(II) complexes of stoichiometry [Cu(L-dipept)], containing as ligands the dipep tides L-alanine-L-valine and L-alanine-L-phenylalanine were prepared. They were character ized by single crystal X-ray diffractometry, and infrared and electronic spectroscopy. Both crystallize in the orthorhombic space group P2i2i2i with Z = 4. The Cu(II) ion has essentially the same elongated pyramidal coordination, being equatorially cis coordinated by a N2O2 ar rangement of ligand atoms and axially by a carbonyl oxygen atom. The compounds show rather similar polymeric structures that differ from each other basically in the dihedral angle between adjacent N2O2 planes. The infrared and electronic spectra are briefly discussed on the basis of the structural characteristics of the complexes. Superoxide dismutase-like activity was tested for both compounds.
	Reference	Z. Naturforsch. 55b, 1157—1162 (2000); received July 4 2000
	Published	2000
	Keywords	Copper(II)-Dipeptide Complexes, Electronic Spectra, SOD Activity
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	TEI-XML for	default:Reihe_B/55/ZNB-2000-55b-1157.pdf
	Identifier	ZNB-2000-55b-1157
	Volume	55

7	Author		Requires cookie*
	Title	Spectroscopic Behaviour of Quasi-One-Dimensional Linear Chains in MgPt(CN)4 * 7 H ,0 Single Crystals
	Abstract	H a r t m u t Y e r s i n a n d G ü n t e r G l i e m a n n In stitu t In the direction of the crystallographic c-axis MgPt(CN)4 • 7 H 20 has a relatively low P t-P t-distance (3.15 A at 300 °K). Thus the optical behaviour shows inter-molecular interactions. Single crystal polarized emission and absorption spectra were measured between 300 °K and 5 °K. In this tem perature range the emission peaks shift to the red by about 1,100 cm-1. This is attributed to a decrease in Pt-Pt-distance. MgPt(CN)4 • 7 H 20 undergoes phase transitions at about 166 °K and 60 °K. To interprete the solid state emission and absorption behaviour the Davydov theory is applied. The two lowest excited bands of electronic origin are assigned to the symmetries r ^ f k) and r ^ u(k) in the double group Dgh.
	Reference	(Z. Naturforsch. 30b, 183—190 [1975]; received December 27 1974)
	Published	1975
	Keywords	Electronic Spectra, Phase Transitions, Davydov Splitting
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	TEI-XML for	default:Reihe_B/30/ZNB-1975-30b-0183.pdf
	Identifier	ZNB-1975-30b-0183
	Volume	30

8	Author	H.-H Perkampus, E. Schönberger	Requires cookie*
	Title	Untersuchungen über die Wechselwirkung von Aromaten mit Antimontrichlorid, IV* Elektronenspektroskopische Untersuchung zur Frage der Farbigkeit der Molekülverbindung ArH * 2 SbCl3 Investigations about the Interaction of Aromatic Compounds with Antimonytrichloride, IV* Elektronspectroscopical Investigation about the Colour of the Aromatics * 2 SbCl3 Complexes
	Abstract	Contrary to the published results it is shown the colour of the solid molecular complexes arene • 2 SbCl3 is due to impurities in these systems. These impurities are mainly the radical ions of the aromatic compounds. If the formation of these radical ions is avoided the complexes in the solid state are colourless or slightly yellow-coloured.
	Reference	(Z. Naturforsch. 31b, 73—75 [1976]; eingegangen am 13. September 1975)
	Published	1976
	Keywords	Electronic Spectra, Solution, Solid State, Radicalions, Aromatic Compounds
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	TEI-XML for	default:Reihe_B/31/ZNB-1976-31b-0073.pdf
	Identifier	ZNB-1976-31b-0073
	Volume	31

9	Author	G. C. Papavassiliou, D. Layek	Requires cookie*
	Title	Electronic and Resonance Raman Spectra of Some New Mixed-Valence Compounds of Pt and Pd with a Metal-Halide Chain
	Abstract	The electronic and resonance Raman spectra of new mixed-valence compounds of the type M2'[M(L)X3][M(L)X5], where M' = K, NH4, M -Pt or Pd, L = NH3 or pyridine, and X = Cl, Br or I, have been studied. The single-crystal polarized reflectance spectra indicate the one-dimensional semiconductor behaviour. The polarized resonance Raman spectra confirm the —M(II)—X-M(IV)-X linear chain structure, which is in accordance with the X-ray results. The polarization of M-N bands can be explained by the Snyder's theory (1971).
	Reference	Z. Naturforsch. 35b, 676—679 (1980); received January 14 1980
	Published	1980
	Keywords	Electronic Spectra, Raman Spectra, Mixed-Valence, Oriented Molecules
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	TEI-XML for	default:Reihe_B/35/ZNB-1980-35b-0676.pdf
	Identifier	ZNB-1980-35b-0676
	Volume	35

10	Author	G. C. Papavassiliou, D. Layek	Requires cookie*
	Title	Resonance Raman and Electronic Spectra of Mixed Valence Compounds with Ni(II) ---X-Ni(rV) and Ni(II)—X-Pt(IY) Chains (X = C1 or Br)
	Abstract	The resonance Raman and electronic spectra of compounds Ni(en)2X3, Ni(dapn)2X3 etc. and of compounds [Ni(en)2Pt(en)2X2](C104)4 (where X = Cl or Br) show that these are mixed valence compounds with a metal halide chain (en = 1,2-diaminoethane, dapn = 1,2-diaminopropane).
	Reference	Z. Naturforsch. 37b, 1406—1409 (1982); received July 7 1982
	Published	1982
	Keywords	Resonance Raman Spectra, Electronic Spectra, Mixed Valence Compounds
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	TEI-XML for	default:Reihe_B/37/ZNB-1982-37b-1406.pdf
	Identifier	ZNB-1982-37b-1406
	Volume	37

11	Author	H. S. Sangari, G. S. Sodhi, N. K. Kaushik, R. P. Singh	Requires cookie*
	Title	Bis(?? 5 -cyclopentacüenyl)N,N-Disiibstituted Dithiocarbamato(cUoro)oxomolybdeniim(VI) Complexes
	Abstract	Bis(?j 5 -cyclopentadienyl)N,N-disubstituted Dithiocarbamato(chloro)oxomolybdenum(VI) complexes of the type (C5H5)2MoO(S2CNR2)C1 and (CsHshMoO^CNRR'JCl where R = Me, Et, «'-Pr and R' = cyclohexyl (cyhx) have been prepared by the reaction of stoichio- metric amounts of bis(^5-cyclopentadienyl)oxomolybdenum(VI) dichloride with sodium dichio-thiocarbamates in refluxing dichloromethane. Infrared spectral studies demonstrate that in these complexes, the dithiocarbamate ligands are bidentate. Hence a coordination number of 7 may be assigned to the molybdenum(VI) atom in each case. In addition to infrared studies, electronic spectra, NMR studies, magnetic susceptibility, elemental analyses and conductance measurements have been carried out for these complexes.
	Reference	Z. Naturforsch. 35b, 1254—1256 (1980); received May 9 1980
	Published	1980
	Keywords	Complexes, Electrical Conductance, Magnetic Susceptibility, Electronic Spectra, NMR Spectra
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	TEI-XML for	default:Reihe_B/35/ZNB-1980-35b-1254.pdf
	Identifier	ZNB-1980-35b-1254
	Volume	35

12	Author	Thomas Gerdau, Reinhard Kramolowsky	Requires cookie*
	Title	Koordinationschemie von Liganden mit den Donatoren Phosphor und Schwefel, I Nickel(II)-Komplexe mit Phosphinomethylthioethera als Liganden Gleichgewicht zwischen planarem und tetraedrischem Nickel(II) Coordination Chemistry of Ligands with the Donors Phosphorus and Sulfur, I Nickel(II) Complexes with Phosphinomethylthioethers as Ligands A Planar-Tetrahedral Equilibrium with Nickel(II)
	Abstract	The preparation and structural characterization of phosphinomethylthioethernickel(II) complexes of the general type [NiX2(Ph2PCH2SR)2] (X = CI, Br, I, NCS: R = Me, Ph) are reported. In all the complexes the phosphinomethylthioethers act as monodentate ligands coordinating via the phosphorus atom. The isothiocyanate complexes are diamagnetic both in solution and in the solid state and have been assigned trans-planar configuration. As shown by magnetic measurements and by electronic spectroscopy, the halo complexes exhibit a square-planar (diamagnetic) ^ distorted-tetrahedral (paramagnetic) equilibrium in solution, while in the solid state the complexes are either square-planar or distorted-tetrahedral. For the complex [NiBr2(Ph2PCH2SMe)2] both isomers have been isolated in the solid state.
	Reference	Z. Naturforsch. 37b, 332—340 (1982); eingegangen am 20. November 1981
	Published	1982
	Keywords	Phosphinomethylthioethernickel(II) Complexes, Planar-Tetrahedral Equilibrium, Electronic Spectra, Magnetic Properties
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	TEI-XML for	default:Reihe_B/37/ZNB-1982-37b-0332.pdf
	Identifier	ZNB-1982-37b-0332
	Volume	37

13	Author	W. Preetz, M. Bruns	Requires cookie*
	Title	Darstellung und spektroskopische Charakterisierung von Hexachloroosmat(V)
	Abstract	(TEA)[OSC16] is formed quantitatively by heating solid £RARAS-(TEA)[OsX4(CO)2] (X = Br, I) in a stream of chlorine at 120 °C, and can be purified by recrystallisation from CH2CI2 without decomposition. It is reduced immediately by acetone, methanol, CU, Br~, I -to give [OsCl6] 2 -. The standard potential [OsCl6] -/[OsCl6] 2 ~ in acetonitrile referred to the saturated mercury-mercurous sulphate electrode is 0.840 V. The IR and Ra bands of (TEA)[OsCl6], assigned according to point group Oh, are shifted to higher frequencies compared with (TEA)2[OsCle]. The excitation at 488.0 nm gives a resonance Raman spectrum exhibiting 6 overtones of vi and combination tones up to 4 J»I + v-0. The electronic absorption spectrum shows five spin-forbidden intraconfigurational transitions coupled with odd vibrational modes in the near infrared region. The spin-allowed 4 A2g -> 4 T2g, 4 Tig-transitions are observed at 347 and 305 nm. The excited levels can be fitted with the parameters A = 28500 cm-1 , B = 340 cm-1 , $ = 2500 cm 4 , allowing to calculate the nephel-auxetic ratio /J55 to 0.47. In the visible region extensive charge transfer transitions are observed. Based on the strong oxidizing character of Os(V) there is a bathochromic shift of corresponding bands of [OsClß]-in relation to [OsC^] 2-of about 6600 cm -1 and to the isoelectronic [ReCle] 2-of about 13700 cm -1 , respectively. From Jitiu->dt2g the optical electronegativity is calculated to a0pt(Os v) — 2.49.
	Reference	Z. Naturforsch. 38b, 680—686 (1983); eingegangen am 10. Februar 1983
	Published	1983
	Keywords	Hexachloroosmate(V), Electronic Spectra, IR Spectra, Raman Spectra
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-0680.pdf
	Identifier	ZNB-1983-38b-0680
	Volume	38

14	Author	E. G. Ferrer, E. J. Baran	Requires cookie*
	Title	Neue ternäre Vanadyl(IV) Komplexe mit A D P und AMP New Ternary Vanadyl(IV) Complexes with A D P and AMP
	Abstract	Four new ternary V 0 2+ complexes, [VO HADP-dipy], 6 H 20 , [VO HADP-ophen], 6 H 20 , [VO AMP-dipy], 6 H 20 and [VO AMP-ophen]. 6 H 20 (diny: a.a'dipyridyl; ophen: o-phe-nanthroline) were prepared and characterized by chemical analyses, electronic and vibrational spec tra. Their bonding peculiarities are briefly discus sed.
	Reference	Z. Naturforsch. 50b, 851—853 (1995); eingegangen am 13. September 1994
	Published	1995
	Keywords	Vanadyl(IV), Adenosine Diphosphate, Adenosine Monophosphate, Mixed Complexes, IR Spectra, Electronic Spectra
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	TEI-XML for	default:Reihe_B/50/ZNB-1995-50b-0851_n.pdf
	Identifier	ZNB-1995-50b-0851_n
	Volume	50

15	Author	Somluck Ruangsuttinarupap, Claus Friebel, Kurt Dehnicke	Requires cookie*
	Title	Synthese, IR-, EPR-und Elektronenspektren der Dischwefel-dinitrid-Komplexe [CUC1 2 (CH 3 CN)] 2 -(/I-S 2 N 2 ) und [CuCl 2 ] 2 * (/I-S 2 N 2 ) Synthesis, IR, EPR, and Electronic Spectra of the Disulfur Dinitride Complexes [CUC1 2 (CH 3 CN)] 2 * (w-S 2 N 2 ) and [CuCl 2 ] 2 -(w-S 2 N 2 )
	Abstract	[CuCl 2 (CH 3 CN)] 2 -(W-S 2 N 2) is prepared by the reaction of trithiazyl chloride with CuCl in acetonitrile solution. Thermolysis at 120 °C yields [CuCl 2 ] 2 -(W-S 2 N 2). The complexes are charac-terized by their IR, EPR, and electronic spectra.
	Reference	Z. Naturforsch. 42b, 337—340 (1987); eingegangen am 24. November 1986
	Published	1987
	Keywords	Disulfur Dinitride Complexes of Copper(II), EPR Spectra, Electronic Spectra, Synthesis, IR Spectra
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	TEI-XML for	default:Reihe_B/42/ZNB-1987-42b-0337.pdf
	Identifier	ZNB-1987-42b-0337
	Volume	42

16	Author	Z. Naturforsch	Requires cookie*
	Title	Über die Darstellung sowie Elektronen-und CD-Spektren der Co(I)-Form einiger natürlicher Corrinoide
	Abstract	Synthesis and S pectra (E lectronic, C D) o f the C o(I) F o rm o f Several N atu ra l C orrinoids M atthäus M oskophidis Several natural corrinoids, cobalam in, 5-hydroxybenzim idazolyl cobam ide (factor III), adenyl cobam ide (pseudovitam in Bi2), 2-m ethyladenyl cobam ide (factor A) and cobyric acid, were reduc ed with sodium borohydride. The reduction o f cyanocobalam in is slow as com pared with that o f factor III and especially o f the other corrinoids under study. At longer wavelengths (A > 300 nm) the electronic spectra o f the Co(I)-corrinoids are nearly identical. The same is to say about the CD-spectra o f the Co(I)-corrinoids examined.
	Reference	Z. Naturforsch. 34c, 689 (1979); eingegangen am 19. Februar/9. April 1979
	Published	1979
	Keywords	Vitamin B12, B12-Analogues, Co(I)-corrinoids, Electronic Spectra, CD-Spectra
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	TEI-XML for	default:Reihe_C/34/ZNC-1979-34c-0689.pdf
	Identifier	ZNC-1979-34c-0689
	Volume	34