| 62 | Author
| Piotr Milart, Janusz Sepiol | Requires cookie* | | Title
| The Reaction of Arylidenemalonodinitriles with 1-Arylethylideneaminobenzenes. A New Synthesis of 5'-Amino-l,r:3',l"-terphenyl-2',6'-dicarbonitriles  | | | Abstract
| A rylidenem alonodinitriles, Schiff B ases, 5 '-A m in o-1,1 ':3',l"-terphenyl-2',6'-dicarbonitriles | | |
Reference
| Z. Naturforsch. 41b, 371 (1986); received October 3 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0371.pdf | | | Identifier
| ZNB-1986-41b-0371 | | | Volume
| 41 | |
64 | Author
| Atta-Ur-Rahman, SohailM. Alik ', Klaus Albert, +.H E J | Requires cookie* | | Title
| Structural Studies on Vindolinine  | | | Abstract
| Catharanthus roseus. A pocynaceae. 19-S-V indolinine, 19-R-V indolinine. NM R Spectra 19-S-Vindolinine has been found to undergo an interesting isom erisation in chloroform to 19-R-vindolinine at room tem perature. N O E D S m easurem ents have been carried out on both isom ers and a I3C solid state CP-M A S spectrum recorded for 19-S-vindolinine. The structure assigned as 16-epi-19-S-vindolinine to an alkaloid isolated previously from Catharanthus roseus has been revised in the light of corrected l3C NM R values for 19-S-and 19-R-vindolinine. | | |
Reference
| Z. Naturforsch. 41b, 386 (1986); received Septem ber 12 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0386.pdf | | | Identifier
| ZNB-1986-41b-0386 | | | Volume
| 41 | |
67 | Author
| M. Arianne Bäudler, Loert De, Riese-M Eyer | Requires cookie* | | Title
| Beiträge zur Chemie des Phosphors  | | | Abstract
| , 164 [1] (*-BuP)2P -P (M e)-P (f-B u P)2 -das erste Bis(cyclotriphosphano)phosphan, ein neuer P7R5-Strukturtyp Contributions to the Chemistry of Phosphorus, 164 [1] (r-BuP)2P -P (M e)-P (r-B u P)2 -The First Bis(cyclotriphosphano)phosphane, a Novel P7R 5 Structure Type B is(cyclotriphosphano)phosphane, C yclotriphosphanes, Organopolyphosphanes, Phosphinocyclotriphosphane The first bis(cyclotriphosphano)phosphane (r-BuP)2P —P (M e)-P (f-B u P)2 (1) has been syn thesized by reacting (?-BuP)2PSnM e3 with M ePC l2 in the molar ratio 2:1. With equim olar amounts of the reactants the chlorom ethylphosphino cyclotriphosphane (r-BuP)2P -P (M e)C l (2) has been obtained. 1 represents a novel P7R 5 structure type in addition to the types already known [4, 5]. The N M R parameters o f 1 and 2 are reported and discussed. | | |
Reference
| Z. Naturforsch. 41b, 399—404 (1986); eingegangen am 18. D ezem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0399.pdf | | | Identifier
| ZNB-1986-41b-0399 | | | Volume
| 41 | |
69 | Author
| Joachim Pickardt, N. Orbert, R. Autenberg | Requires cookie* | | Title
| Darstellung  | | | Abstract
| und Röntgenstrukturanalyse von (DichIoro)-(l,3,5,7-tetramethyI-2,4,6,8,9,10-hexathiaadamantan)palladium(II), PdCl2(CH3)4C4S6 Preparation and X-Ray Structure Analysis of (D ichloro)-(l,3,5,7-tetram ethyl-2,4,6,8,9,10-hexathiaadam antane)palladium (II), PdCl2(C H 3)4C4S6 Tetram ethyl-2,4,6,8,9,10-hexathiaadam antane, Palladium (II)chloride A dduct, Crystal Structure | | |
Reference
| Z. Naturforsch. 41b, 409 (1986); eingegangen am 9. D ezem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0409.pdf | | | Identifier
| ZNB-1986-41b-0409 | | | Volume
| 41 | |
70 | Author
| F. Fockenberg, A. Haas | Requires cookie* | | Title
| Beiträge zur Chemie perhalogenierter Thiocarbonyle, Selenocarbonyle und Selendiimine Advances in Perhalogeno Thiocarbonyl, Selenocarbonyl and Selenodiimine Chemistry  | | | Abstract
| Synthesis, Thiocarbonyl, Selenocarbonyl, Selenodiim ine Trifluorom ethylselenylthiocarbonyls form with CF3_"C1"SC1 or CF3SeCl the corresponding di-sulfanes or selanesulfanes. O xidation o f CF3SeC (S)X , X = CF3Se, CF3S, Cl, or Br, with 3-C1 — C6H 4 C (0) 0 0 H yields com pounds CF3S e (X) C = S = 0 . Only decom position products are obtained from (C F3S e)2CSe and Cl2, CF3SeCl, CF3SC1, or 3-C1—C6H 4 C (0) 0 0 H . The prepara tion o f com pounds R N = S e = N R , R = (C H 3)3Si, CF3C (0) , or CF3S 0 2, is described. Physical and spectroscopical data o f the new substances are provided. | | |
Reference
| Z. Naturforsch. 41b, 413 (1986); eingegangen am 25. O ktober/16. D ezem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0413.pdf | | | Identifier
| ZNB-1986-41b-0413 | | | Volume
| 41 | |
71 | Author
| M. Anfredo, H. Örner, K. Laus-, Peter Frank, Joachim Strähle, ProfessorD J M Bevan | Requires cookie* | | Title
| Bildung von Nitridokomplexen durch  | | | Abstract
| Ammonolyse von Metallhalogeniden mit NH4+. Synthese und Struktur von (NH4)3Nb2NBr10, (NH4)3Ta2NI10 und (NH4)3W2NBr10 Formation of Nitrido Complexes by Ammonolysis of Metal Halides with NH 4+. Synthesis and Structure of (N H 4)3N b2N B r10, (N H 4)3T a2N I10 and (N H 4)3W 2N B r10 Am m onolysis, ^-N itrido-decahalogeno-dim etallateC V), Synthesis, Crystal Structure The reaction o f WC16 or R eC l5 with N H 4 C1 in a sealed glas am poule betw een 350 and 400 °C yields the hexachlorom etallates(IV) (N H 4)2MC16. M oC l5 forms (N H 4)2MoC16 at 275 °C, whereas at 420 °C (N H 4) 3M o2C19 is obtained. The salts (N H 4)2MC16 crystallize in the K2PtCl6 type struc ture. NbBr5, W Br6 and T a l5 undergo am m onolysis reactions with N H 4+ forming the nitrido | | |
Reference
| Z. Naturforsch. 41b, 423 (1986); eingegangen am 14. N ovem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0423.pdf | | | Identifier
| ZNB-1986-41b-0423 | | | Volume
| 41 | |
72 | Author
| Elke Conradi, Ulrich Müller, Kurt Dehnicke | Requires cookie* | | Title
| Die Reaktionen von Trithiazylchlorid mit Molybdän, Molybdäntrioxid und Natriummolybdat. Die Kristallstruktur von PPh4[MoCl4(N3S2)] und ihre Packung  | | | Abstract
| The Reactions of Trithiazyl Chloride with M olybdenum, M olybdenum Trioxide and Sodium M olybdate. The Crystal Structure of PPh4[MoCl4(N3S2)] and its Packing H eribert W adle, C yclothiazeno Com plexes o f M olybdenum (V I), Preparation, Crystal Structure Trithiazylchloride, (NSC1)3, reacts with M o, M o 0 3 or N a2M o 0 4 at 75 — 80 °C to give high yields o f S4N 3 [M oCl4(N 3S2)]. By interaction with a solution o f PPh4Cl in C H 2C12 this product can be converted into PPh4[M oCl4(N 3S2)], from which [M oCl3(N 3S2) ] 2 can be obtained by reaction with gallium trichloride. The crystal structure o f PPh4 [M oCl4(N 3S2)] was determ ined by X-ray diffrac tion (2436 observed reflexions, R = 0.047). Crystal data: orthorhom bic, space group Pbca, Z = 8 , a = 1384.3, b = 2092.4, c = 1898.6 pm. The structure consists o f PPh4+ cations and [M oC l4(N 3 S2)]~ anions in which the Mo atom s are part o f a planar M oN 3S2 ring with M oN bond lengths o f 183 and 184 pm and nearly equal NS bond lengths (m ean value 158 pm). The PPh4® ions are arranged in centrosymmetric (PPh4®) 2 pairs in a manner that normally is encountered with doubly charged anions. The structure found for PPh4 [M oCl4(N 3S2)j differs from the known m onoclinic structures o f A sPh4[M oCl4(N 3S2)] and A sPh4[WCl4(N 3S2)]; an analysis o f their pack ing show ed that they form layers o f AsPh4® ions in which three phenyl groups o f every A sP h4® ion are adjacent to phenyl groups of four other A sPh4® ions. | | |
Reference
| Z. Naturforsch. 41b, 429 (1986); eingegangen am 9. D ezem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0429.pdf | | | Identifier
| ZNB-1986-41b-0429 | | | Volume
| 41 | |
73 | Author
| Jürgen Kaub | Requires cookie* | | Title
| Darstellung und Struktur von Ba2AsSe4(OH) *2H20  | | | Abstract
| Barium T etraselenoarsenate(V) H ydroxide Dihydrate, Crystal Structure Ba2A sS e 4 (O H)-2 H :0 1 has been prepared by the reaction o f B a(O H) 2 with A s2S e3 in aqueous solution and its structure established by X-ray structural analysis. 1 crystallizes in the m onoclinic system , space group Cm (N o. 8) with a = 8.992(4), b = 9.967(3). c = 6.340(1) A . ß — 104.51(4). Z = 2. M = 718.5, D ber = 4.34 g-cm \ In the structure there are isolated A sSe43~ tetrahedra with Cs-symmetry and A s —Se bond lengths betw een 2.303 and 2.329 Ä . The Ba:+ ions are coordinated by 6 Se and 3 O atoms. | | |
Reference
| Z. Naturforsch. 41b, 436 (1986); eingegangen am 26. N ovem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0436.pdf | | | Identifier
| ZNB-1986-41b-0436 | | | Volume
| 41 | |
74 | Author
| Klaus Brodersen, Karl Böhm | Requires cookie* | | Title
| Zur Koordination von Thiocyanat in ternären Metallkomplexen Die Kristallstruktur von Ba2Cd(SCN)6 * 7 H20 On the Coordination of Thiocyanate in Ternary M etal Complexes The Crystal Structure of Ba2Cd(SCN )6 * 7 H 20  | | | Abstract
| Crystal Structure, Ternary M etal C om plex The title com pound was prepared by reaction o f aqueous solutions o f B a(S C N)2-3 H 20 and C d S 0 4 • 8/3 H 20 in the m olar ratio o f 3:1. The crystal structure was solved by X-ray m ethods (M r = 861.61, space group P 2 x!c, Z = 4, a = 943.6(3) pm, b = 1469.7(6) pm, c = 1827.1(6) pm , ß = 109.02(7), V -2395.4 106 pm 3, A (A gK a) = 55.83 pm, dc = 2.38 gem -3, ^ (A g K a) = 22.4 cm -1, | | |
Reference
| Z. Naturforsch. 41b, 439 (1986); eingegangen am 19. D ezem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0439.pdf | | | Identifier
| ZNB-1986-41b-0439 | | | Volume
| 41 | |
75 | Author
| Siegfried Lochschmidta, G. Erhard, M. Üllerb, BrigitteH. Uberh, Alfred Schmidpetera | Requires cookie* | | Title
| ,2-Diphosphonio-diphosphirane 1,2-Diphosphonio-diphosphiranes  | | |
Reference
| Z. Naturforsch. 41b, 444—454 (1986); eingegangen am 27. N ovem ber 1985 | | |
Published
| 1986 | | |
Keywords
| Am inosubstituted Triphosphenium Ions, Diphosphiranes, Tetraphosphane-1, 4-diium Ions Phosphoniophosphinidene Transfer, X -R ay | | |
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| default:Reihe_B/41/ZNB-1986-41b-0444.pdf | | | Identifier
| ZNB-1986-41b-0444 | | | Volume
| 41 | |
76 | Author
| Klaus Angerm, Borislav Bogdanović, GudrunK. Oppetsch, Carl Krüger, RichardM. Ynott, Manfred Schwickardi, Yi-H Ung Tsay | Requires cookie* | | Title
| Magnesiumorganische Innerkomplexe, Teil I [1] Bis(dialkylaminoalkyl)-und Bis(alkoxybutyl)magnesium-Verbindungen Organomagnesium Inner C om plexes, Part I [1] Bis(dialkylaminoalkyl)-and Bis(alkoxybutyl)m agnesium Compounds  | | | Abstract
| A series of magnesium inner complexes has been prepared by reacting M gH2 (prepared by homogeneous catalysis) with dialkylallyl-and -3-butenylam ines and -3-butenylethers in the p re sence of catalytic amounts of Z rC l4. The m onom eric nature of bis(4-m ethoxybutyl)m agnesium has been confirmed by X-ray diffraction. The analogous syntheses of bis(3-alkoxypropyl)magnesium com pounds failed: cleavage of the allyl ether with elimination of propene occurred. This cleavage reaction is accelerated by catalytic amounts of NiCl2 or ZrC l4. | | |
Reference
| Z. Naturforsch. 41b, 455 (1986); eingegangen am 21. N ovem ber 1985 | | |
Published
| 1986 | | |
Keywords
| Magnesium, Inner Complexes, Crystal Structure, X-Ray | | |
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| default:Reihe_B/41/ZNB-1986-41b-0455.pdf | | | Identifier
| ZNB-1986-41b-0455 | | | Volume
| 41 | |
77 | Author
| A.L F E R Study, R. Je, R. Shanker, OmP. Sachdeva | Requires cookie* | | Title
| Kinetics of Pb(IV) Oxidation of Substituted Methyl Mandelates —  | | | Abstract
| Kinetics of P b(IV), Substituted Methyl M andelates Lead tetra acetate (Pb(IV) or LTA) oxidation of the esters X —C,,H4—C H (O H) — C O O C H , (X = H , m -N O : , p -N O : , /?;-Cl. /?-Cl. p-B r. p-C H , and p-C :H s) gives corresponding keto esters. The reaction is first ord er in [Pb(IV)] and second order in [Ester], and is catalysed by pyridine and 2,6-lutidine. The pyridine catalysed reaction is first order each in [Pb(IV)]. [Ester] and [Pyridine]. A kinetic isotope effect is observed in oxidation of methyl m andelate for both uncatalysed reaction (kH/kD = 4.2) and pyridine catalysed reaction (kH/kD = 1.8). Activation param eters for both uncatalysed and pyridine catalysed reactions are evaluated. The results are in accord with Linear Free Energy Relationship (L .F . E .R .) and the reaction constant (o = +0.75) obtained supports proton transfer in the a -C —H bond rupture in in catalysis, as a ligand or as a base is discussed. | | |
Reference
| Z. Naturforsch. 41b, 467—472 (1986); received March 25/July 31 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0467.pdf | | | Identifier
| ZNB-1986-41b-0467 | | | Volume
| 41 | |
78 | Author
| Heinrich Lang, Gottfried Hüttner, Ibrahim Jibril | Requires cookie* | | Title
| Halogen-Metall-Austausch an Dihalogenphosphan-Komplexen; Synthese von Diphosphan-, Diphosphen-und Phosphiniden-Derivaten Halogen M etal Exchange; D iphosphane-, D iphosphene-, Phosphinidene-Com plexes  | | | Abstract
| Halogen M etal Exchange, D ihalophosphane C om plexes, Phosphinidene Complexes, D iphosphene Complexes Complexes of dihalophosphanes L "M -P (R)(H a l)2 (L"M = 16-electron fragm ent e.g. C p(C O)2Mn) undergo transform ations into phosphinidene-, diphosphene-or diphosphane-derivatives upon treatm ent with metallating agents (e.g. "BuLi/TMEDA). On the basis of many experim ental observations a unified reaction scheme is p ro posed for these syntheses. The preparation and reactivity of diphosphane complexes L"M—(R)P(H) —(R)P (H) —ML" is discussed in som e detail. Analytic, spectroscopic and X-ray techniques are used to establish the results. A prom inent finding is the observation of an ex tremely long P —P distance (235.1(3) pm) for the sterically strained meso-[Cp(CO)2Mn]2('C4H 9)P (C H 3) —('C4H 9)P (C H 3). | | |
Reference
| Z. Naturforsch. 41b, 473—485 (1986); eingegangen am 6. N ovem ber 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0473.pdf | | | Identifier
| ZNB-1986-41b-0473 | | | Volume
| 41 | |
80 | Author
| SaidA. Hm, Ed Soliman Ghozlan, Fatma Abd, El Maksoud, Abd El, A. Al, Mona Hassan, M. Oham, Ed, M. Ohamed, Hilmy Elnagdi | Requires cookie* | | Title
| Nitriles in Heterocyclic Synthesis: Novel Syntheses of Functionally Substituted Isoxazoles, Pyrazoles, Pyrazines and their Condensed Derivatives  | | | Abstract
| a-O xim inonitriles, 13C NM R Spectra, Aminoisoxazole Novel syntheses of functionally substituted isoxazoles, pyrazoles and pyrazines have been re ported utilizing ethyl tosyloximinoglyoxalate (1) and the pyridinium salt 2 as starting materials. | | |
Reference
| Z. Naturforsch. 41b, 489—495 (1986); received July 26 1985 | | |
Published
| 1986 | | |
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| default:Reihe_B/41/ZNB-1986-41b-0489.pdf | | | Identifier
| ZNB-1986-41b-0489 | | | Volume
| 41 | |
|