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Facet   section ZfN Section B:Volume 039  [X]
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1984 (324)
201Author    W. Preetz, D. R. Uf, D. TensfeldtRequires cookie*
 Title    Darstellung und Schwingungsspektren von Fluoro-Chloro-Osmaten(IV) einschließlich der Stereoisomeren Preparation and V ibrational Spectra of Fluoro-Chloro-O sm ates(IV) Including Stereoisomers  
 Abstract    Fluoro-C hloro-O sm ates(IV), Stereoisom ers, frans-Effect, IR Spectra. Ram an Spectra The stepwise replacem ent of ligands in [OsC16]2~ by oxidation with BrF3 generates the mixed complexes [OsF"C16_"]2_, n = 1 — 5, of which the species with n = 2,3,4 are cw-configurated. D ue to the stronger trans-eiizcX of Cl com pared to F on treatm ent of [OsF5Cl]2' and ds-[O sF4Cl2]2~ with Cl the rram -isom ers are form ed stereospecifically. The pure fluoro-chloro-osmates(IV) are separated by ion exchange chrom atography on diethylam inoethylcellulose. From the pairs of stereoisom ers the a's-com pounds are always first eluted, w hereas the rrans-complexes are moving faster in an electric field by 3 to 5% . The vibrational spectra of octahedral mixed ligand complexes are generally discussed according to point groups O h, D 4h, C4v, C3v and C2v. For the fluoro-chloro-osm ates(IV) all stretching and deform ation bands are assigned. They are observed in the charac­ teristic regions; v(OsF): 6 2 5 -4 9 0 > v(OsCl): 3 6 0 -3 0 0 > (3(FOsF): 2 75-210 > d(FOsCl) > d(ClOsCl): 190-150 > vL: < 100 cm " 1. 
  Reference    Z. Naturforsch. 39b, 1100—1109 (1984); eingegangen am 2. März 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1100 
 Volume    39 
202Author    Johannes Beck, W. Olfgang, H. Iller, E.Berhard Schweda, Joachim SträhleRequires cookie*
 Title    Die Kristallstruktur von Di-/i-oxo-cis-dioxo  
 Abstract    dichloro-bis(2,2 -bipyridyl)-molybdän(V) (M o—Mo)-Nitromethansolvat, M o204Cl2(bipy)2 • CH3N 0 2 Crystal Structure of Di-i w-oxo-c/5-dioxo-dichloro-bis(2,2'-bipyridyl)-molybdenum(V) (M o—Mo) N itrom ethane Solvate, Mo20 4Cl2(bipy)2 • C H 3N 0 2 Di-^-oxo-cz5-dioxo-dichloro-bis(2 ,2 '-bipyridyl)m olybdenum (V), Crystal Structure, M etal—M etal Bond Mo20 4Cl2(bipy)2 has been obtained by oxidation of M oCl4(bipy) with 0 2 in ethanol/H 20 . The complex crystallizes from C H 3N 0 2 with one solvent molecule per formula unit in the monoclinic space group P 2 xln: a = 954.1(2), b = 1925.3(2), c = 1423.2(2) pm, ß = 102.48(2)°, Z = 4. The characteristic unit M o20 42" of the dinuclear complex consists of two term inal oxo ligands in a cis-arrangem ent and two bridging oxygen atoms forming a non-planar M o20 2 ring. A strong Mo —Mo single bond is indicated by a short distance of 256.5 pm. The coordination of both Mo atoms is completed by a Cl atom and a chelating bipyridyl ligand. 
  Reference    Z. Naturforsch. 39b, 1110—1113 (1984); eingegangen am 22. März 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1110 
 Volume    39 
203Author    Willi Kafitz, Kurt DehnickeRequires cookie*
 Title    ReNF4 * ReF5(NCI), ein Nitrido-Nitrenokomplex von Rhenium(VII) R eN F4 * R eF5(NCl), a Nitrido Nitrene Complex of R henium (V II)  
  Reference    Z. Naturforsch. 39b, 1114 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1114 
 Volume    39 
204Author    Z.Requires cookie*
 Title    Strukturverfeinerungen an den Cobalt(II)  
 Abstract    hexammin-Komplexen [Co(NH3)6](BF4)2 und [Co(NH3)6](PF6)2 Structure Refinem ents of the Cobalt(II)hexam m ine Complexes [Co(N H 3)6](BF4)2 and [Co(NH3)6](PF6)2 S. K um m er und D. Babel* Sonderforschungsbereich 127 (K ristallstruktur und Chemische Bindung) und Crystal Structure. Cobalt(II)hexam m ine, T etrafluoroborate, H exafluorophosphate Using single crystal X-ray data of the compounds [Co(N H 3)6](BF4)2 (a = 1129.8(1) pm) and [C o(N H 3)6](PF6)2 (a = 1195.9(1) pm) the am/-K2PtCl6 structure, space group F m 3 m , was con­ firmed for both complexes (R ~ 0.05). Fourier methods revealed essential disorder for the BF4 -anion only, the fluorine atoms of which remain concentrated, how ever, within the octants of the subcell opposite to the cobalt atoms. No indication of H bridging is found in the IR spectra. The C o—N bond lengths of 218.3(2) and 218.7(10) pm, resp.. in the cobalt(II)hexam m ine group are unusual long in both compounds. 
  Reference    Z. Naturforsch. 39b, 1118—1122 (1984); eingegangen am 7. M ärz 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1118 
 Volume    39 
205Author    ~.Requires cookie*
 Title    Ubergangsmetall-substituierte Phosphane, Arsane und Stibane, XLY [1]  
 Abstract    Einige Komplexe mit W—A s—S-Dreiringstruktur: Aufbau aus Metallo-arsinsulfiden. Öffnung des Metallacyclus mit Phosphordonoren [2] Transition-M etal Substituted Phosphanes, Arsanes and Stibanes, XLV [1] 
  Reference    Z. Naturforsch. 39b, 1123 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1123 
 Volume    39 
206Author    E. Berhard, A. M. Bach, M. Ano, M. Ohan, Singh, Ulrich Nagel, Wolfgang BeckRequires cookie*
 Title    Metallkomplexe mit biologisch wichtigen Liganden, XXXIII [1] Reaktionen von «-Aminosäuren und «-Aminosäurederivaten mit Gold(III)-chlorid M etal Complexes with Biological Im portant Ligands, XXX III [1] Reactions of a-A m ino Acids and Derivatives thereof with G old(III) Chloride  
 Abstract    T etrachloroaurate(III) Salts with a-A m m onium Carboxylic Acids as Cations, G old(III) C hloride, a-A m ino Acids The hydrochlorides of a-am ino acid esters react with A u2Cl6 in thionyl chloride to give the am m onium salts [H3N C H R C 0 2R '] +A uCl4-(R = H , Me, R ' = H , M e, E t). The X-ray structure of [H3N C H (M e)C 0 2M e]+A uCl4-has been determ ined. The reactions of a-am ino acids with A u2C16 in SO Cl2 afford mixtures of ammonium tetrachloroaurate(III) salts with a-am ino acids, a-am ino acid chlorides or a-am ino acid anhydrides as amine com ponents. Cysteine esters reduce gold(III) to give the gold(I) compounds [AuSCH2C H (N H 2) C 0 2R]" (R = Me, E t). 
  Reference    Z. Naturforsch. 39b, 1129—1134 (1984); eingegangen am 22. M ärz 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1129 
 Volume    39 
207Author    R. BlachnikRequires cookie*
 Title    31P-NMR-spektroskopische Untersuchungen an A 4B3-Molekülen 'P N M R Spectroscopical Investigations of A 4B3 Molecules  
 Abstract    snabrück U . W ic k e l u n d P. S ch m itt A norganische bzw. Tetraphosphorus-trichalcogen Molecules, 31P NM R Spectra, Cage Molecules 31P N M R data of sixteen molecules in the series P4SxSe3_J. (x = 0 —3), PvA s4_rS3, and P vA s4_>,Se3 (y = 0 —4), resp., are given. All molecules have a common structure, in which a basal ring of three V b-atom s is connected by three chalcogen atom bridges to an apical V b-atom . The dependence of the data on bond angles and electronegativities is discussed. A linear relationship was found betw een chemical shift and an angle increment 1=11.3 (< e n d o —60°) +5.5 (< e x o —103°), which describes the bond angle deviations from the reference molecule P4S3. 
  Reference    Z. Naturforsch. 39b, 1135 (1984); eingegangen am 29. F ebruar 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1135 
 Volume    39 
208Author    Requires cookie*
 Title    Transition Metal Allyls, V The Preparation and Structure of [NiX(PmenthylR1R2)(i73-allyl)] Complexes  
  Reference    Z. Naturforsch. 39b, 1139 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1139 
 Volume    39 
209Author    Requires cookie*
 Title      
  Reference    Z. Naturforsch. 39b, 1151 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1151_n 
 Volume    39 
210Author    JohannesR. EspondekRequires cookie*
 Title    Reaction Product of Formaldehyd and O-Benzylhydroxylamine: A Schiff Base?  
 Abstract    S quibb-V on H ey d en G m b H , D o n a u sta u fe rstr. 378, D -8400 R eg en sb u rg 1, F R G Z. N a tu rfo rsch . 39b, 1 154-1155 (1984); received Ja n u a ry 30, 1984 200 M H z 'H an d 50 M H z 13C N M R sp ectra w ere re co rd e d from th e reactio n pro d u ct o f form aldehyd 1 a n d O -benyzlhydroxylam ine 2 for the p u rp o se of its stru c tu re e lucidation. 
  Reference    Z. Naturforsch. 39b, 1154 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1154_n 
 Volume    39 
211Author    Z. NaturforschRequires cookie*
 Title    M arino Nicolini  
 Abstract    Prostaglandins. D ipole M om ent Study The experim ental electric dipole mom ents in dioxane solution, together with the calculated di­ pole m om ents for som e selected conform ers, are re­ ported for the two natural prostaglandins F la and F 1/?. The results obtained are com patible with a hypothesized hairpin structure for these m olecules in solution. 
  Reference    Z. Naturforsch. 39b, 1156 (1984); received February 13 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1156_n 
 Volume    39 
212Author    M. R. Berm, A. Castineiras, M. Gayoso, W. Hiller, U. E. Nglert, J. SträhleRequires cookie*
 Title    Synthese und Kristallstruktur von Tl^CS-CHjCstLjNO^, einem Komplex des dreiwertigen Thalliums Synthesis and Crystal Structure of Tll3(3-CH3C5H4NO)2, a Complex of Trivalent Thallium  
  Reference    Z. Naturforsch. 39b, 1159—1161 (1984); eingegangen am 8. Mai 1984 
  Published    1984 
  Keywords    Triiodo-bis(3-m ethylpyridine-N-oxide)thallium, Synthesis, Crystal Structure, IR Spectra 
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 Identifier    ZNB-1984-39b-1159 
 Volume    39 
213Author    Joachim Pickardt, Jörg Kähler, N. Orbert, R. Autenberg, Erwin RiedelRequires cookie*
 Title    Kristallstruktur-und Mößbauer-Untersuchungen am Lithiumhexacyanoferrat(III) -Hexamethylentetramin-Addukt Li3[Fe(CN)6] * 2 C6H 12N4 5 HzO Crystal Structure and M össbauer Studies of the Lithium H exacyanoferrate(III)-H exam ethylenetetram ine Adduct Li3[Fe(CN )6] * 2 C6H 12N4 * 5 H 20  
 Abstract    Crystals o f the adduct Li3[Fe(C N)6] -2 C 6H i2N 4-5FI20 are orthorhom bic, space group I2 m m , 
  Reference    Z. Naturforsch. 39b, 1162—1166 (1984); eingegangen am 29. März 1984 
  Published    1984 
  Keywords    H exacyanoferrates, H exam ethylenetetram ine, Crystal Structure, M össbauer Spectra 
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 Identifier    ZNB-1984-39b-1162 
 Volume    39 
214Author    Dieter Brodalla, A. Nnegret LipkaRequires cookie*
 Title    Chloroantimonate(III), V* Darstellung und Kristallstruktur des Triethanolammonium-tetrachloroantimonats [(C2H4OH)3NH]SbCl4  
 Abstract    Chloroantim onates(III), Stereochem istry, Triethanolam m onium Triethanolamm onium tetrachloroantim onate was synthesized and investigated by X-ray diffrac­ tion analysis. The structure consists o f SbCl3 m olecules, chloride ions and triethanolamm onium cations. The SbCl3 m olecules and the cations form adducts by a bridging O -atom at 274.3 pm. The Sb—Cl distances within the SbCl3 m olecule are 239.2, from the Sb atom th the C L ion are 290.2 and 332.1 
  Reference    Z. Naturforsch. 39b, 1167 (1984); eingegangen am 21. April 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1167 
 Volume    39 
215Author    P. Chaudhuri, K. W. Ieghardt, I. Jibril, G. H. ÜttnerRequires cookie*
 Title    Zweikernige Komplexe des Molybdän(III): Die Kristallstruktur von ii-Bromo-ji-hydroxo-bis  
 Abstract    [brom o(l,4,7-triazacyclononan)molybdän(III)]dibromid • Tetrahydrat D inuclear Complexes of M olybdenum (III): The Crystal Structure of ^-Brom o-^-hydroxo-bis-[brom o(l,4,7-triazacyclononane)m olybdenum (III)]dibrom ide • tetrahydrate Synthesis, D inuclear M o(III) C om plexes, X -R ay, M agnetism The syntheses o f two binuclear com plexes o f m olybdenum (III) is reported. The oxidation of L M o(C O)3 (L = 1,4,7-triazacyclononane, C6H 15N 3) with bromine in chloroform (0.75% ethanol) yields the m onom eric com plex [M ovLO Br2](B r3) (weff(298 K) = 1.61 uB). R eduction of this sp ecies in aqueous solution with Zn under an argon atm osphere at 25 °C affords — upon addition o f NaBr — green crystals o f [M o2L2(M-OH)(w-Br)Br2]Br2-4 H 20 . The reduction at elevated tem peratures yields green crystals o f [M o2L2(w-O H)2Br2]Br2-2 H 20 . Both com plexes exhibit antiferrom agnetic behaviour. The crystal structure o f [M o2L2(w -O H)(a-B r)B r2]Br2-4 H :0 con­ sists o f dinuclear cations, brom ide ions and water o f crystallization. It crystallizes in the triclinic space group P I with cell constants a — 821.3(3). b = 837.7(2), c = 1008.1(3) pm, a = 103.63(2)°, ß = 98.92(2)°, y — 79.54(2)° and Z = 1. The two M o(III)-centers are in a distorted octahedral environm ent o f the tridentate am ine, a terminal bromo-ligand and one hydroxo-and one bromide bridging ligand (edge sharing). The short M o —M o distance o f 255.8(3) pm indicates strong metal-m etal bonding. 
  Reference    Z. Naturforsch. 39b, 1172—1176 (1984); eingegangen a m -14. April 1984 
  Published    1984 
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 Identifier    ZNB-1984-39b-1172 
 Volume    39 
216Author    Requires cookie*
 Title    Reaktionen des (2-Trimethylsiloxyphenyl)diphenylphosphans mit Phosphorhalogeniden — Kristall-und Molekülstruktur des (2-Hydroxyphenyl)diphenylphosphoniumbromids  
  Reference    Z. Naturforsch. 39b, 1177 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1177 
 Volume    39 
217Author    D. Tensfeldt, W. PreetzRequires cookie*
 Title    Darstellung und Schwingungsspektren von FIuoro-Chloro-Iridaten(IY) einschließlich der Stereoisomeren Preparation and Vibrational Spectra of Fluoro-Chloro-Iridates(IV ) Including Stereoisomers  
 Abstract    In stitu t für anorganische C hem ie d e r C h ristia n -A lb rec h ts-U n iv e rsitä t, O lsh a u se n straß e 40 D -2300 Kiel 
  Reference    Z. Naturforsch. 39b, 1185 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1185 
 Volume    39 
218Author    Arm In, Weiss, JinHo ChoyRequires cookie*
 Title    Phase Changes in Fe(III)OCl—RNH2-Intercalation Complexes  
 Abstract    In stitu t für A n o rg an isch e C h em ie d e r U niversität M ünchen, 8000 M ünchen 2, M eise rstraß e 1, G erm an y 
  Reference    Z. Naturforsch. 39b, 1193 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1193 
 Volume    39 
219Author    Requires cookie*
 Title      
 Abstract    In Tab. I sind spektroskopische D aten für die Cy-clopentadienylrhenium-Komplexe 1—5 zusammen-1200 M. H e rb e rh o ld et al. • C y clopentadienylrhenium -K om plexe m it S ch w efelb rü ck en 
  Reference    Z. Naturforsch. 39b, 1199 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1199 
 Volume    39 
220Author    JaapN. Louwen, D. Erk, J. Stufkens, A. D. OskamRequires cookie*
 Title    The He(I) and He(II) Photoelectron Spectra of Tm2Zn (Tm = (C5H5)Fe(CO)2, (C5H5)M(CO)3; M = Cr, Mo, W)  
  Reference    Z. Naturforsch. 39b, 1206 (1984) 
  Published    1984 
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 Identifier    ZNB-1984-39b-1206 
 Volume    39 
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