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1990 (280)
201Author    Dirk Johrendt, Albrecht MewisRequires cookie*
 Title    Darstellung und Kristallstruktur der Verbindungen SEPdP (SE = Seltenerdelement) Preparation and Crystal Structure of SEPdP C om pounds (SE = Rare Earth Element)  
 Abstract    The new compounds SEPdP (SE = L a -G d), which were prepared by heating the elements, crystallize with a modified N i2In-type structure. The phosphides o f SE = D y -L u attain the orthorhombic TiNiSi-type structure. A comparison o f the cell volumes suggests that europium has intermediate valence in EuPdP. 
  Reference    Z. Naturforsch. 45b, 1262—1266 (1990); eingegangen am 19. März 1990 
  Published    1990 
  Keywords    Rare Earth Elements, Palladium, Phosphides, Crystal Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1262.pdf 
 Identifier    ZNB-1990-45b-1262 
 Volume    45 
202Author    A. C. Astiñeiras, W. Hiller, J. Strähle, R. Carballo, M. R. Bermejo, M. GayosoRequires cookie*
 Title    Darstellung  
 Abstract    , Eigenschaften und Kristallstruktur von [Diaqua-l,6-bis(benzimidazoI-2-yl)-2,5-dithiahexan-nickel(II)]dibromid-Dihydrat Synthesis, Properties and M olecular Structure of [D iaqua-l,6-bis(benzimidazol-2-yl)-2,5-dithiahexane-nickel(II)]dibromide Dihydrate l,6-Bis(benzimidazol-2-yl)-2,5-dithiahexane, Quadridentate Ligand, Nickel(II) Complex, Crystal Structure The synthesis, crystal structure and some spectroscopic properties o f [N i(B B D H)(0 H 2)2]Br2-2 H 20 , (BBDH = l,6-bis(benzim idazol-2-yl)-2,5-dithiahexane), are re­ ported. The compound is obtained from nickel bromide hydrate and BBDH in ethanol. It crystallizes in the triclinic space group P 1 with a = 1155.5(3), b = 1203.9(2), c = 1047.0(2) pm, a = 111.62(4), ß = 114.25(2), y = 86.74(3)°, and Z = 2. The structure consists o f [Ni(BBDH)(OH-,)2]2+ cations joined through hydrogen bonding to two Br" ions and two m ole­ cules water o f crystallization. BBDH is bound to the N i2+ ion as quadridentate ligand with two N atom s o f the two imidazole moieties in axial positions and the two S atom s in equatorial arrangement. The sixfold coordination is completed by two water molecules in rra«s-position to the S atom s. Raman, IR and mass spectra are discussed. 
  Reference    Z. Naturforsch. 45b, 1267—1272 (1990); eingegangen am 15. Januar/26. April 1990 
  Published    1990 
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 Identifier    ZNB-1990-45b-1267 
 Volume    45 
203Author    Dieter Fenske, G.Erhard Baum, Alfred Zinn, K. Urt DehnickeRequires cookie*
 Title    Ag2IP h -C ( Synthesis, IR Spectra, X -Ray, A m idinato Complexes o f Silver(I) and Gold(I)  
 Abstract    N S iM e3)2l2 und Au2[P h -C (N S iM e3)2|2: Amidinatokomplexe mit kurzen M etall-M etall-Abständen Ag2[P h-C (N S iM e3)2]2 and Au2[P h -C (N S iM e3)2]2: Am idinato Complexes with Short M etal-M e tal Distances The amidinato com plexes o f silver(I) and gold(I), M 2[P h -C (N S iM e3)2]2, have been prepared by the reaction o f N ,N,N'-tris(trim ethylsilyl)benzam idine with A g 0 2CCH3, and ClAuCO, re­ spectively, in acetonitrile suspensions. Both complexes were characterized by IR spectroscopy as well as by X-ray structure determinations. A g-,[P h-C (N SiM e3)2]-,: Space group P I, Z = 2 (6408 observed unique reflexions, R = 0.023). Lattice dim ensions at -1 0 °C: a = 1132.5(5), b = 1221.4(6), c = 1407.9(8) pm, a = 107.85(3), ß = 106.63(4), y = 91.54(3)°. A u2[P h -C (N S iM e3)2]2: Space group P I, Z = 2 (6654 observed unique reflexions, R = 0.043). Lattice dim ensions at -7 3 °C: a = 1119.6(6), b = 1219.0(8), c = 1391.7(9) pm, a = 108.74(4), ß = 106.70(5), y = 91.49(4)°. The com pounds, which are isotypical, form dimeric molecules with short m etal-m etal con ­ tacts o f Ag -Ag = 265.5(2) and A u -A u = 264.6(2) pm and two chelating amidinato ligands with A g -N bond lengths o f (averaged) 212.4(2) pm and A u -N bond lengths o f 206.0(7) pm. 
  Reference    Z. Naturforsch. 45b, 1273—1278 (1990); eingegangen am 26. März 1990 
  Published    1990 
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 Identifier    ZNB-1990-45b-1273 
 Volume    45 
204Author    M. Arianne Bäudler, JosefH. AhnRequires cookie*
 Title    Beiträge zur Chemie des Phosphors, 208 [1] Zur Valenztautomerie des Heptaphosphanortricyclen-Anions P73- On the Valence Tautomerism o f the Heptaphosphanortricyclene Anion P73  
 Abstract    The valence tautomerism o f the heptaphosphanortricyclene anion P73~ has been studied by means o f a two-dimensional 3IP N M R exchange spectrum. The rearrangement process o f the P atoms postulated earlier [2] has been confirmed in all details. 
  Reference    Z. Naturforsch. 45b, 1279—1281 (1990); eingegangen am 6. April 1990 
  Published    1990 
  Keywords    Heptaphosphanortricyclene A nion, Valence Tautomerism, Valence Isomerization, Two-dimensional 31P Exchange Spectrum 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1279.pdf 
 Identifier    ZNB-1990-45b-1279 
 Volume    45 
205Author    R. Alf Steudel, Eva-M Aria, Strauss, Detlef JensenRequires cookie*
 Title    The Retention of Six-, Seven-, Eight-, and Twelve-Membered Ring Molecules of Type SexS v in Reversed-Phase HPLC. Prediction of Retention for Unknown Se^S^. Heterocycles and Analysis of Sulfur-Selenium Melts [1]  
 Abstract    The HPLC retention times o f 25 cyclic com pounds o f type SevSv (x = 0 8; y = 0 12) have been measured under identical conditions and are used to evaluate the factors which determine the retention. Linear relationships are derived for the dependence o f retention (Ink'-, k' = capacity factor) on ring size, number o f Se atoms, and number o f SeS bonds per molecule for six-, seven-, eight-, and twelve-membered SevSv rings. These relationships allow the prediction o f retention times for all SeY S t. heterocycles o f these ring sizes (ca. 100 com pounds). The results are applied to the qualitative analysis o f mixed sulfur-selenium melts o f two com positions: at a molar ratio o f S : Se = 8.7 twenty-one HPLC signals have been observed for the CS2 extract o f the quenched melt and assigned to SevSv rings o f sizes 6 • • • 12. At S :S e = 0.33 mainly six-, seven-, and eight-membered species with cumulated Se atom s have been found. 
  Reference    Z. Naturforsch. 45b, 1282—2 (1990); received March 19 1990 
  Published    1990 
  Keywords    HPLC, Selenium Sulfides, Retention-Structure R elationship, Retention Indices, Sulfur-Selenium Melts 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1282.pdf 
 Identifier    ZNB-1990-45b-1282 
 Volume    45 
206Author    Hans-Friedrich Klein, Klaus Ellrich, Birgit Hammerschmitt, Udo Koch, G.Erhard CordierRequires cookie*
 Title    Koordination von Diazoverbindungen an Cobalt(I)-Zentren  
 Abstract    Struktur von Methyl(diazocyclopentadien)tris(trimethylphosphan)cobalt C oordination o f Diazo Com pounds to Cobalt(I) Centres Structure of M ethyl(diazocyclopentadiene)tris(trimethylphosphane)cobalt A norganisch-C hem isches In stitut der T echnischen H ochschule D arm stad t, H ochschulstraße 10, D -6100 D arm stad t 
  Reference    Z. Naturforsch. 45b, 1291 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1291 
 Volume    45 
207Author    H. Schumann, J. A. Meese-Marktscheffel, J. LoebelRequires cookie*
 Title    Die Kristall-und Molekülstruktur von Lithiumtrifluormethansulfonat L i[S 0 3CF3|(T H F ) The Crystal and M olecular Structure of Lithium trifluorom ethanesulphonate L i[S 03C F 3] * (TH F)  
  Reference    Z. Naturforsch. 45b, 1304 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1304 
 Volume    45 
208Author    Requires cookie*
 Title    Zur  
 Abstract    Reaktion von [Cp'2TiCl2] und [CpTiCl3] mit E(SiM e3)2 (E = Se, Te; Cp = C5H4CH3 Die Kristallstrukturen von [Cp'4Ti2Te4l, [Cp 5Ti5Se6] und [Cp'5Ti5Te6l 
  Reference    Z. Naturforsch. 45b, 1309 (1990) 
  Published    1990 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1309.pdf 
 Identifier    ZNB-1990-45b-1309 
 Volume    45 
209Author    Frederick Kurzer, C.Richard DuffnerRequires cookie*
 Title    Diisophorone and Related Compounds, Part 27 [1] Nucleophilic Reactions of 1-Halogenodiisophoranes  
 Abstract    R oyal Free H ospital School o f M edicine (U niversity o f L o ndon), L o n d o n N W 3 
  Reference    Z. Naturforsch. 45b, 1314 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1314 
 Volume    45 
210Author    IgnacyZ. SiemionRequires cookie*
 Title    A New Example of Edge-to-Face Interaction of Aromatic Rings in Oligopeptides: Cyclolinopeptide A  
 Abstract    Institute o f C hem istry, W roclaw U niversity, Jo lio t-C u rie 14, 5 0 -3 8 3 W roclaw , P oland Z. N atu rfo rsch . 45 b, 1 3 2 4 -1326 (1990); received M arch 27, 1990 C yclolinopeptide A, N M R Spectra, E dge-to-F ace Interaction T he analysis o f the aro m atic region o f 'H an d 13C N M R spectra o f cyclolinopeptide A (cyclic no n ap ep tid e w ith the sequence c -(P r o -P r o -P h e -P h e -L e u -I l e -I l e -L e u -V a l -) , (C LA)) show s th a t Phe-3 an d Phe-4 aro m atic rings are oriented nearly perpendicularly to each o ther, form ing edge-to-face pair. It signifies the strong lim itation o f the free ro ta tio n o f aro m atic residues, p ro b ab ly because o f the steric h indrance exerted by proxim al alip h atic side chains o f C LA . 
  Reference    Z. Naturforsch. 45b, 1324 (1990) 
  Published    1990 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1324.pdf 
 Identifier    ZNB-1990-45b-1324 
 Volume    45 
211Author    K. Taraz, G. Ehlert, K. Geisen, H. Budzikiewicz, H. K. Orth, G. PulvererRequires cookie*
 Title    Protochelin, ein Catecholat-Siderophor aus einem Bakterium (DM S Nr. 5746) [1] Protocheline -a Catecholate Siderophore from a Bacterium (DMS No. 5746) [1]  
 Abstract    In stitu t für O rganische Chem ie d er U n iv ersität, G rein straß e 4, 
  Reference    Z. Naturforsch. 45b, 1327 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1327 
 Volume    45 
212Author    Klaus-Jürgen Range, Franz Rau, Ulrich KlementRequires cookie*
 Title    N a 2LiAu3, eine ternäre Laves-Phase vom M gZ n 2-Typ N a2LiAu3, a Ternary Laves Phase with M gZn2-Type Structure  
  Reference    Z. Naturforsch. 45b, 1333—1334 (1990); eingegangen am 26. M ärz 1990 
  Published    1990 
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 Identifier    ZNB-1990-45b-1333_n 
 Volume    45 
213Author    Requires cookie*
 Title    © e r  
 Abstract    A bb. 1 O R T E P -Z eich n u n g von 2 m it A to m n u m erie­ rung. 1336 N otizen 
  Reference    Z. Naturforsch. 45b, 1335 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1335_n 
 Volume    45 
214Author    Xian-M Ing, Pan, Clemens Von SonntagRequires cookie*
 Title    OH -Radical-Induced O xidation o f Benzene in the Presence o f O xygen: R '+ 0 2^ R 0 2' Equilibria in Aqueous Solution. A Pulse Radiolysis Study  
  Reference    Z. Naturforsch. 45b, 1337 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1337_n 
 Volume    45 
215Author    Ann Friedem, Werner Hahn, MassaRequires cookie*
 Title    Topotaktische Entwässerung von Cs2MnF5 * H 20 zu Cs2MnF5 und die Kristallstrukturen beider Verbindungen Topotactical Dehydration of Cs2M nF5 * H 20 to Cs2M nF 5 and the Crystal Structures of Both Compounds  
  Reference    Z. Naturforsch. 45b, 1341 (1990) 
  Published    1990 
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 Identifier    ZNB-1990-45b-1341 
 Volume    45 
216Author    Requires cookie*
 Title    K{^-Cl2A l|C H (SiM e3)2l2} " Kristallstruktur eines eindimensional über K -C l-Brücken koordinationspolymeren Alanats  
  Reference    Z. Naturforsch. 45b, 1349 (1990) 
  Published    1990 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1349.pdf 
 Identifier    ZNB-1990-45b-1349 
 Volume    45 
217Author    Siegfried Pohl, W. Olfgang Saak, R. Ain, Er Lotz, Detlev HaaseRequires cookie*
 Title    Zur Existenz schwacher Wechselwirkungen zwischen Sb(III) und Phenylgruppen: Sb2 Br6 (SPPh3)2, Sb2 I6 (SePPh3 ) 2 * 2 CH2 C12, Sb4 Br12(SPM e2 Ph) 4 und (Ph4 P)2 Sb2 Br8 * CH3CN  
 Abstract    On the Existence o f W eak In teractio n s between Sb(III) and Phenyl G roups: Sb2Br6(SP Ph3)2, Sb2I6(SeP Ph3)2 • 2 C H 2C12, Sb4B r12(SPM e2Ph)4 and (Ph4P)2Sb2Br8 • C H 3CN The com pounds Sb2Br6(SPPh3)2 (1), Sb2I6(SePPh3)2-2 C H 2C12 (2), and Sb4Br12(SPMe2Ph)4 
  Reference    Z. Naturforsch. 45b, 1355 (1990); eingegangen am 6. März 1990 
  Published    1990 
  Keywords    Sb(III)-Phenyl Interaction, Antimony Trihalides, Crystal Structure 
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 Identifier    ZNB-1990-45b-1355 
 Volume    45 
218Author    Arie Schäfer, M. Anfred, W. Eidenbruch, Siegfried Pohl, W. Olfgang SaakRequires cookie*
 Title    Silicon C om pounds with Strong In tram o lecu lar Steric Interactions, X L II [1]  
 Abstract    Tris(2,4,6-tri-terf-butylphenylthio)silane and R elated C om pounds: Exam ples o f Extrem e Steric C row ding A nnem 2,4,6-Tri-te/7-butylphenylthiosilanes, 2,4,6-Tri-/£r/-butylphenoxysilanes, Steric Hindrance 
  Reference    Z. Naturforsch. 45b, 1363—1368 (1990); eingegangen am 2. April 1990 
  Published    1990 
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 Identifier    ZNB-1990-45b-1363 
 Volume    45 
219Author    Requires cookie*
 Title    Kupfer(I)  
 Abstract    Komplexe mit ungesättigten Stickstoffliganden, V [1] Kupfer(I)-Komplexe mit Diazadienen als Chelate und Brücken: Röntgenstrukturenuntersuchungen an (DAD)Cu(//-Cl)2Cu(DAD), [(DAD)2Cu|+ (CuC12)~, (DAD)CuCl, I//-(DAD)2Cu5Cl5ln und |//-(DAD)Cu(OTf)]n (DAD = Diazadien) 
  Reference    Z. Naturforsch. 45b, 1369 (1990) 
  Published    1990 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1369.pdf 
 Identifier    ZNB-1990-45b-1369 
 Volume    45 
220Author    H. Erbert, W. Roesky, R. Ein, H. Ard, H. Asselbring, JoH. Annes, Lieberm Ann, M. Athias, N. Oltem EyerRequires cookie*
 Title    Untersuchungen an Benzamidinyl-2-phosphazen-Liganden Investigations on B enzam idinyl-2-phosphazen Ligands  
 Abstract    The new ligands (Me3Si)2N C(4-CF3C6H 4)N P(Ph)2N(SiM e3) (2) and (Me3Si)2NC(4-M e2N C 6H 4)N P(Ph)2N(SiM e3) (3) have been prepared from 4-CF3C6H4CN or 4-Me2N C 6H 4CN, respectively, with LiN(SiMe3)2, Ph^PCl and Me3SiN3. In solution, 2 as well as 3 form two isomers. Their structures (2 a, 2 b and 3 a, 3 b) were tentatively assigned on the basis of N M R investigations. Crystals of 2a and 3a are triclinic, space group P L Bond lengths and bond angles o f 2a and 3a are very similar. The influence of the para-substituents on the bonding properties are found to be negligible. 
  Reference    Z. Naturforsch. 45b, 1383—1387 (1990); eingegangen am 28. Februar 1990 
  Published    1990 
  Keywords    X-Ray Structure, Phosphorus-N itrogen, New Ligands 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1383.pdf 
 Identifier    ZNB-1990-45b-1383 
 Volume    45 
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