Go toArchive
Browse byFacets
Bookbag ( 0 )
Facet   section ZfN Section B:Volume 039  [X]
Facet   Publication Year 1984  [X]
Results  324 Items
Sorted by   
Publication Year
1984[X]
81Author    ElisabethH. Anecker, Josef Moll, Heinrich NöthRequires cookie*
 Title    Metalltetrahydridoborate und Tetrahydridoborato-metallate, 12 [1] Zur Kenntnis von Calcium-bis(tetrahydridoborat)-bis(dimethylglykolether) On Calcium Bis(tetrahydroborate)-bis(dim ethylglycolether)  
 Abstract    Calcium Bis(tetrahydroborate)-bis(dimethylglykolether), X-Ray, Triple Hydrogen Bridge Bond C a(B H 4)2-2(C H 3O C H ;C H :O C H ,)2, (1) has been prepared from C a(BH 4)2-2 TH F by ligand displacem ent. IR and NM R data are in agreem ent with the presence o f a nonionic B H 4 group, but a specific binding to calcium could not be deduced unambiguously. H owever, the X-ray structure 
  Reference    Z. Naturforsch. 39b, 424 (1984); eingegangen am 4. N ovem ber 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0424.pdf 
 Identifier    ZNB-1984-39b-0424 
 Volume    39 
82Author    Heinz Berke, G. Ertrud WeilerRequires cookie*
 Title    Darstellung kationischer mer-Phosphit-substituierter Mangancarbonyl-Verbindungen Synthesis of Cationic M er-Phosphite-Substituted Carbonylmanganese Compounds  
 Abstract    Phosphite Substitution, Carbonylm anganese Cations, Hydride Abstraction D i-, tri-and tetrasubstituted carbonylmanganese com pounds (OC)"L6 " M n +PF6^ (L = P (O M e)3, P (O E t)3, P (0 -/-P r)3, P (O P h)3 and P (0 -o -T o ly l)3) are synthesized by hydride abstrac­ tion and substitution processes from corresponding hydridemanganese compounds. 
  Reference    Z. Naturforsch. 39b, 431 (1984); eingegangen am 10. Novem ber 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0431.pdf 
 Identifier    ZNB-1984-39b-0431 
 Volume    39 
83Author    M. Arianne Baudler, Josef Hahn, Erwin ClefRequires cookie*
 Title    Beiträge zur Chemie des Phosphors, 139 [1]  
 Abstract    Triethyl-cyclotriphosphan, Trimethyl-cyclotriphosphan; Gleichgewichte zwischen Cyclophosphanen (PR)" bei erhöhten Temperaturen Contributions to the Chemistry of Phosphorus, 139 [1] Triethylcyclotriphosphane, Trimethylcyclotriphosphane; Equilibria between Cyclophosphanes (PR)" at Elevated Tem peratures Triethylcyclotriphosphane, Trim ethylcyclotriphosphane. Tetram ethylcyclotetraphosphane, Equilibria betw een Cyclophosphanes, Strain Energies o f Cyclophosphanes Triethylcyclotriphosphane, (P E t)3 (1), has been generated by thermolysis o f tetraethylcyclo-tetraphosphane, (P E t)4. 1 can be obtained as a 43% solution in l,2,3-trieth yl-l,2,3-trip h osp h ole, 
  Reference    Z. Naturforsch. 39b, 438 (1984); eingegangen am 31. O ktober 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0438.pdf 
 Identifier    ZNB-1984-39b-0438 
 Volume    39 
84Author    Requires cookie*
 Title    2-Amino-3.5.6-trichloro-1.4-benzochinon durch Ammonolyse von Chloranil  
  Reference    Z. Naturforsch. 39b, 445 (1984) 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0445.pdf 
 Identifier    ZNB-1984-39b-0445 
 Volume    39 
85Author    M. C. Apella, E. J. BaranRequires cookie*
 Title    Röntgenographische und spektroskopische Untersuchung einiger gemischter Magnesium/Calcium-Fluoroapatite X-Ray and Spectroscopic Investigation of Some Mixed Magnesium/Calcium Fluoroapatites  
 Abstract    Crystallographic data for m ixed apatites o f general formula M g< .Ca10.t.(Po4)fiF2 (x — 1 — 4) have 
  Reference    Z. Naturforsch. 39b, 449 (1984); eingegangen am 28. N ovem ber 1983 
  Published    1984 
  Keywords    M ixed A patites, Crystal D ata, Vibrational Spectra, Hard Tissues 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0449.pdf 
 Identifier    ZNB-1984-39b-0449 
 Volume    39 
86Author    KarlheinzD. Ietz, Heim, J. Keller, DietrichN. Öthe, D. Ieter WeheRequires cookie*
 Title    Structures of 5,10-Dihydro-5,10-dimethylphenaziniumyl (M2P+)-hexafluorophos- phate and 5,10-Dihydro-5,10-diethylphenaziniumyl (E2P+)-bromide-dihydrate  
 Abstract    Structure o f Organic Radical Salts M2P -P F 6 (1) C I4H 14N ,PF 6. Mr = 355.25, m onoclinic Cc, a = 14.544(3) Ä . b = 6.23(1) Ä , c = 18.542(4) Ä , ß = 121.32(2)°, V = 1457.7 Ä 3, dr = 1.62 Mg • m -3, Z = 4. The M2P^ ion is nearly 
  Reference    Z. Naturforsch. 39b, 452 (1984); received Septem ber 27 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0452.pdf 
 Identifier    ZNB-1984-39b-0452 
 Volume    39 
87Author    Peter Morys, Ulrich Gorges, Hans-Ludwig KraussRequires cookie*
 Title    Oberflächenverbindungen von Übergangsmetallen, XXVII [1] Lumineszenzerscheinungen an Oberflächenverbindungen des Chroms auf Silicagel Surface Compounds of Transition M etals, XXVII [1] Luminescence Phenom ena of Chromium Surface Compounds on Silicagel Supports  
 Abstract    Lum inescence, Surface C om pounds, Chromium Com pounds The red chem ilum inescence (CL) of coordinatively unsaturated surface chrom ium (II) com ­ pounds in their reaction with 0 2 has been studied at various reactivities of the products and various reaction temperatures. With com pounds of high reactivity, two CL's were observed: the first — spectrally unstructured — appears at T ^ —130 °C, the second — being more intense and spectrally well structure — at T ^ —90 °C. In course o f both these CL's 0 2 is released. — B elow — 130 °C, oxidation takes place without any lum inescence. On heating of the reaction product in vacuo, the lum inescence phenom ena are observed as a two-stage therm olum inescence (TL). With the final oxidation product, a photolum inescence (PL) can be stim ulated by U V irradia­ tion which is identical with the second CL and shows a well resolved vibrational fine structure at — 196 °C. Probably this PL as well as the second C L is produced essentially by an undisturbed monochrom ate surface species. The first CL and a small part o f the PL is attributed to a topologi­ cally broad population o f a "disturbed" chromate surface species. Surface chrom ium(II) com pounds of low reactivity show a one-com ponent CL, TL and PL, almost identical with the first CL m entioned above; they obviously contain the '"disturbed" species only. The m entioned species, defined by their lum inescence behaviour, are postulated to be members of the known families of surface chromium occurring in Phillips catalysts, CrAn and CrBn, respec­ tively. 
  Reference    Z. Naturforsch. 39b, 458 (1984); eingegangen am 11. N ovem ber 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0458.pdf 
 Identifier    ZNB-1984-39b-0458 
 Volume    39 
88Author    ErnstO. Tto Fischer, Johannes Schneider, Klaus AckermannRequires cookie*
 Title    Ubergangsmetall-Carben-Komplexe, CXXXIII [1] Darstellung, spektroskopische Daten und Molekülstrukturen neuartiger Eisencarben-Komplexe Transition M etal Carbene Complexes, CXXXIII [1] P reparation, Spectroscopic D ata and Molecular Structures of Novel Iron Carbene Complexes  
 Abstract    Iron Carbene C om plexes The reaction o f F e(C O)5 with LiN'Pr2 and subsequent treatment with Et3O B F4 results in the formation o f (C O)4 F e[C (N 'Pr2)O C 2H 5] (1). A s a second product the cyclic carbene com plex (C O)3Fe[C (N 'Pr2)O C O (C 2H 5)] (2) is formed. 
  Reference    Z. Naturforsch. 39b, 468 (1984); eingegangen am 8. N ovem ber 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0468.pdf 
 Identifier    ZNB-1984-39b-0468 
 Volume    39 
89Author    JosephJ M Lamberts, D. C. NeckersRequires cookie*
 Title    Rose Bengal and Non-Polar Derivatives: The Birth of Dye Sensitizers for Photooxidation+  
 Abstract    The synthesis o f a new rose bengal derivative, 6-O-acetyl rose bengal ethyl ester is reported. The spectral properties o f various new rose bengal derivatives are discussed in relation to their structures and compared with results found for the other fluorescein dyes in the literature. A concise historical review o f the chemistry o f fluorescein dyes and of their current applications is given. 
  Reference    Z. Naturforsch. 39b, 474 (1984); received O ctober 19 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0474.pdf 
 Identifier    ZNB-1984-39b-0474 
 Volume    39 
90Author    Requires cookie*
 Title    Die Kristallstrukturen des Benzo  
 Abstract    [1.2-c:3.4-c']bis[1.2.5]thiadiazols und des semihomologen [1.2.5]Selenadiazolo[3.4-e]-2.1.3-benzothiadiazols [1] The Crystal S tructures o f the B e n z o [l,2 -c : 3,4-c']b is[l,2 ,5 ]th iad iazo le and of the Sem ihom ologous [l,2 ,5 ]S elen ad iazo lo [3 ,4 -e]-2 ,l,3 -b en zo th iad iazo le [1] A lfred G ieren*, H elm u t B etz, T hom as H ü b n e r un d V ik to r Lam m Chalkogen-Diim ides, [l,2,5]T h ia(selen a)d iazoles, quasi-Arom atic .T-Systems, Columnar Structures, Interm olecular S(S e)---N Contacts 
  Reference    Z. Naturforsch. 39b, 485 (1984); eingegangen am 26. Septem ber 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0485.pdf 
 Identifier    ZNB-1984-39b-0485 
 Volume    39 
91Author    L. H. Orner, G. SimRequires cookie*
 Title    Studien zum Vorgang der Wasserstoffübertragung, 70 [1]  
 Abstract    Über den Einfluß der Struktur des Co-Katalysators auf die Hydrierung von Hexen-1 mit Rh(I)-Phosphin-Komplexen. Gibt es einen "Scheibenwischer-Effekt"? Studies on the O cc u rren c e of H y d ro g e n tran sfer, 70 [1] O n the Influence o f th e S tru ctu re o f th e C o-C atalyst upon the H y d ro g e n atio n of H exene-1 w ith R h(I)-P hosphine-C om plexes. Exists a W ind-S creen-W iper-E ffect? K arl W innacker, dem W issenschaftler und weitschauenden Industrieführer zum 80. G eburtstag gew idm et Tertiary Phosphines, orr/io-Substituted A ryl-O R G roups, Co-Catalysts, H om ogeneous H ydrogenation 
  Reference    Z. Naturforsch. 39b, 497 (1984); eingegangen am 15. Septem ber 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0497.pdf 
 Identifier    ZNB-1984-39b-0497 
 Volume    39 
92Author    Georg Maria, SchwabRequires cookie*
 Title    Studien zum Vorgang der Wasserstoffübertragung, 71 [1]  
 Abstract    Tertiäre Phosphine mit orrÄo-ständigen chelatisierungsfähigen funktionellen Gruppen als Co-Katalysatoren der Homogenhydrierung mit Rh(I)-Komplexen Studies on the O ccurrence of H ydrogen T ran sfer, 71 [1] T ertiary P hosphines w ith F unctional G ro u p s in th e orf/jo-Position C apable for C helatization as C o-C atalysts of the H om ogeneous H y d ro g en atio n w ith R h(I)-C o m p lex es L eopold H orner* und G uido Simons [2] H om ogenous Catalysis, H ydrogenation R ate, Rhodium /Co-Catalyst-R atio By systematic variation o f the structure o f tertiary phosphines with orf/zo-phenyl substituted groups as co-catalysts of the hom ogeneous hydrogenation with Rhodium com plexes and hexene-1 as a m odel com pound a collection o f data is obtained. By investigating the influence of the variation o f the Rhodium /Phosphine-Ratio (R h/P) (1:1,1 and 1:2,2) on the rate o f the hydrogen-transfer indirect conclusion can be drawn on the com position of the com plexes in the equilibria responsible for the hydrogen transfer. Results: 1. Steric effects of substituents linked to the orf/zo-position o f a phenyl group in the co-catalyst are very important (compare the Tables I —V especially Table V I). 2. The rate o f hydrogenation is strongly influenced by tertiary phosphines with substituents in a 
  Reference    Z. Naturforsch. 39b, 504 (1984); eingegangen am 24. O ktober 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0504.pdf 
 Identifier    ZNB-1984-39b-0504 
 Volume    39 
93Author    WernerRequires cookie*
 Title    Studien zum Vorgang der Wasserstoffübertragung, 72 [1] Versuche zur enantioselektiven Homogenhydrierung von N-Acyl-a-aminozimtsäuren mit Rh(I)-KompIexen unter Verwendung neuer optisch aktiver Co-Katalysatoren  
 Abstract    Studies on th e O ccurrence of H ydrogen T ran sfer, 72, [1] Investigation on th e E nantioselective H om o g en eo u s H yd ro g en atio n of N -A cy l-a-am in o cin n am ic A cids with R h(I)-C om plexes U sing N ew O ptically A ctive C o-C atalysts L. H orner* und G . Sim ons [2] Optically A ctive Tertiary Phosphines as Co-catalysts, H om ogen eou s H ydrogenation with R h(I)-C om plexes 
  Reference    Z. Naturforsch. 39b, 512 (1984); eingegangen am 24. O ktober 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0512.pdf 
 Identifier    ZNB-1984-39b-0512 
 Volume    39 
94Author    Requires cookie*
 Title    Uber  
 Abstract    Synthesen unsymmetrisch substituierter Bis(phenyI)bis(triphenylphosphan)pIatin(II)-Verbindungen mit orfÄo-ständigen Substituenten Syntheses of U nsym m etrically S ubstituted B is(p h en y l)b is(trip h en y lp h o sp h an e)p latin u m (II) C om pounds with orr/zo-Substituents H ans A lb ert B rune* 3, G ü n th e r S chm idtbergh und M anfred W iege3 orr/zo-Substituted Bis(phenyl)platinum (II) Com pounds The influence o f orr/io-substituents on the formation of cis-and fra«s-Bis(phenyl)bis( 
  Reference    Z. Naturforsch. 39b, 517 (1984); eingegangen am 26. Oktober 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0517.pdf 
 Identifier    ZNB-1984-39b-0517 
 Volume    39 
95Author    H.E JRequires cookie*
 Title    The Isolation and Structure of "Moenjodaramine" and "Harappamine" — Two New Alkaloids from Buxus papilosa  
 Abstract    Steroidal A lkaloids. Buxus papilosa, Structure Elucidation. Febrifuge. Rheumatism Two new alkaloids, have been isolated from the leaves o f Buxus papilosa w'hich are the first members o f a new' group of pentacyclic natural products bearing both a tetrahydro-oxazine ring and a 9 (10—>19) abeo-diene system. The alkaloids, named "moenjodaramine" and "harapp­ am ine", have been assigned structures (1) and (2) respectively on the basis o f spectroscopic studies. 
  Reference    Z. Naturforsch. 39b, 524 (1984); received May 10 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0524.pdf 
 Identifier    ZNB-1984-39b-0524 
 Volume    39 
96Author    Karl Folkers, CyrilY B Ow Ers ", Janusz Stepinski, T. Om Asz, P. Lucinski-, M. Asanori, S. Akagam, T. Eresa, K. UbiakRequires cookie*
 Title    Analogs of the Luteinizing Hormone Releasing Hormone having the Azagly10 Moiety with Antiovulatory Activity  
 Abstract    A ntagonists, A ntiovulation. A zaglycine. Luteinizing H orm one R eleasing H orm one, Peptides Twenty-four new analogs o f the luteinizing horm one releasing horm one (L H R H) were syn­ thesized and bioassayed for antiovulatory activity in rats. [N —A c —\d P r o 1, p F -D — Phe~, 
  Reference    Z. Naturforsch. 39b, 528 (1984); received A ugust 24 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0528.pdf 
 Identifier    ZNB-1984-39b-0528 
 Volume    39 
97Author    Z. NaturforschRequires cookie*
 Title    SN NM R Study of Tris  
 Abstract    (dimethylamino)phosphine Derivatives: (M e2N)3PSe, (M e2N)3PTe and (M e2N)3PB H 3 B ernd W rackm eyer The title com pounds have been studied by n B. i5N , ?iP, 7,Se and 125Te N M R spectroscopy (6 -val-ues, coupling, constants). The 15N relaxation is dominated by l:,N —'H dipolar interactions whereas nuclear screening anisotropy controls the 125Te re­ laxation. 
  Reference    Z. Naturforsch. 39b, 533 (1984); eingegangen am 8. D ezem ber 1983 
  Published    1984 
  Keywords    Am inophosphines, I5N NM R Spectra, Relaxation 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0533_n.pdf 
 Identifier    ZNB-1984-39b-0533_n 
 Volume    39 
98Author    Requires cookie*
 Title    Darstellung und Eigenschaften von und Reaktionen mit metallhaltigen H etero­ cyclen, X X X V III [1]  
 Abstract    Fünf-und sechsgliedrige Oxaphosphamolybdacycloalkane durch reduktive Cycloeliminierung P rep aratio n and P ro p erties of, and R eactions w ith, M etal-C ontaining H eterocycles, X X X V III [1] Five-and S ix-M em bered O xaphospham olyb-dacycloalkanes by R eductive C ycloelim ination E k k eh a rd L indner* und A n d re as Brösam le The reductive cycloelim ination o f the com plexes Lm(Br)M oPPh20 (C H 2)n-Cl (3a,b) [n = 2 (a), 3 (b); LmMo = 775-C5H 5M o(C O)2], which can be obtained from the reaction o f PPh2Ö —(C H 2)n—Cl (la ,b) and 
  Reference    Z. Naturforsch. 39b, 535 (1984); eingegangen am 11. N ovem ber 1983 
  Published    1984 
  Keywords    O xaphospham olybdacycloalkanes, NM R Spectra, Mass Spectra 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0535_n.pdf 
 Identifier    ZNB-1984-39b-0535_n 
 Volume    39 
99Author    Joachim Strähle, Wolfgang Hiller, W. Alter ConzelmannRequires cookie*
 Title    The Crystal Structure of A uBr ■ S(CH 2C6H ?)2 and AuCl * S(CH 2C6H 5)2  
 Abstract    B rom o(dibenzylsulfide)gold(I), C hloro(dibenzylsulfide)gold(I), Crystal Structure 
  Reference    Z. Naturforsch. 39b, 538 (1984); eingegangen am 11. Januar 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0538_n.pdf 
 Identifier    ZNB-1984-39b-0538_n 
 Volume    39 
100Author    BerndR. Ieckem Ann, Klaus-B Ebhardt, Fritz UmlandRequires cookie*
 Title    Synthesis of Isomeric Dihydroxy Derivatives of Dibenzo-18-crown-6  
 Abstract    Dibenzo-18-crow n-6, Isomeric Dihydroxy D erivatives In 1967 Pedersen described dibenzo-18-crown-6 (1) [1]. We report the preparation of its isomeric dihydroxy derivatives 2c and 3c. Nitration of 1 in acetic acid and chloroform yields the dinitro com ­ pounds 2a and 3a. 2a and 3a have different solubili­ ty in ethylene glycol m onom ethyl ether and can be separated [4]. Catalytic reduction of the dinitro de­ rivatives with hydrazine and Raney nickel leads to the diam ines 2b and 3b. The diazonium salts of 2b and 3 b are heated in dilute sulfuric acid and yield the phenols 2c and 3c. 
  Reference    Z. Naturforsch. 39b, 542 (1984); eingegangen am 31. O ktober 1983 
  Published    1984 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0542_n.pdf 
 Identifier    ZNB-1984-39b-0542_n 
 Volume    39 
Prev
1
2
3
4
5
...
Next