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Artigo Revisado por pares

Salah E. O. Mahgoub, Fungi M. Mthombeni, Elizabeth B. Maswabi, José Jackson,

Abstract M orama bean ( T ylosema esculentum ) is one of the wild legumes that grow in some parts of the S ... assess consumers' knowledge, perceptions and utilization of M orama bean in B otswana. A structured questionnaire was ... that a high percentage of families use M orama beans for food. Other minor uses included decoration ... indicate that they would like to see M orama bean as part of some food products in the market. Development of viable M orama bean products can play a significant role in encouraging farmers to cultivate M orama on a commercial level – a wish expressed by ...

Tópico(s): Legume Nitrogen Fixing Symbiosis

2012 - Wiley | International Journal of Consumer Studies

Jornais Acesso aberto

Sue Summers editor, Jessica Berens, Audrey Slaughter, John Coleman, Barbara Hall, Toby Moore Agriculture Correspondent, Richard Brooks Communications Correspondent, Anne Spackman, David Hepworth, Chris Ryder, Rob Hughes, Judith Thurman, George Jones Political Correspondent, Liz Sly, Chris Tighe, Ivo Jarosy Managing Director, Brian Deer Social Affairs Correspondent, Steven Spielberg, Peter Harland, Kenneth Pearson, Geoffrey Hodgson, M Bruton, Jason Tomas, Henry Porter, Mark Hosenball, Frank Barrett, Philip Oakes, John Westwell, Patrick Stoddart, Mario Modiano, Iain Johnstone, John Newell, Robert Hewison, Deryk Brown, Mick Brown, David Dougill, John Huxley Energy Editor, Veronica Horwell, Sally Vincent, Jane Bird, Brian Tora, John Witherow, Nicholas Shrimpton, Maria Laura Avignolo, Edmund Stevens, Norman Harris, David Connett, David Blundy, Giles Merritt, Geoff Whitten, Michael Jones, Dmitri Shostakovich, Stuart Wolff, Will Ellsworth Jones, George Perry, Fiona Malcolm, Robin Marlar, Philip Robinson, Bernard Cafferty, Geoffrey Dicks, Brian Moynahan, Roger Eglin, Nigella Lawson, Simon Tait, Paul Driver, John Lawrence, Richard Brooks, Walter Simon, Anne Jacobs Local Government Correspondent, Tim Rayment, Brian Jackman, Michael Imeson, Charles Edwards, Mavis Nicholson, Tavleen Singh, Nick Gilbert, John Hopkins, Terry Wilkinson, Liz Jobey, Arthur Adams, Michael Winner, Eric Marsden, Peter Wilsher, Bryan Silcock, Stephen Pile, Gareth Huw Davies, Malcolm Winton, Giles Keating, Diana Wright, Stephen Jones, Brian Deer, Meriel McCooey, Brian Silcock, Dilys Powell, David Terry, Rosemary Bailey, Alan Budd, Deyan Sudjic, Caroline McGhie, Tony Osman, Peter Johnson, Louise Branson, Olliver Gillie, Dudley Doust, John Kerby, Tim Blackstone, Michael Jones Political Editor, Chris Nawrat, Mihir Bose, Philip Beresford, Godfrey Smith, Janet Caird, Brian Glanville, John Carey, Simon Brown, Rowena Webster, Roy Isacowitz, Bill Robinson, Sarah Jane, Chris Benfield, Ian Williams, Anton La Guardia, Peter Jenkins, Peter Greenaway, Marina Vaizey, Chris Lightbown, Margery Fisher, Margaret Park, David Black, George Jones, Nick Higham, Tony Hetherington, Neil Collins, Maggie Drummond, Peter Wilby Education Correspondent, Jon Connell, Leslie Geddes-Brown, Boris Schapiro, Ray Heath,

... De Winton & Assoc. Multiple Classified Advertising Items Frame Orama Multiple Display Advertising Items Printing Arts+design Multiple ...

1986 - Gale Group | Sunday Times HA GDA

Artigo

G. Miaris, Sotirios K. Goudos, C. Iakovidis, E. Vafiadis, John N. Sahalos,

A computer tool (ORAMA) for the synthesis of linear antenna arrays is presented. The orthogonal method (OM) and the orthogonal perturbation (OP) method ... Several design cases with various constraints are presented. ORAMA (a demo of the software is available at ...

Tópico(s): Antenna Design and Analysis

2002 - Institute of Electrical and Electronics Engineers | IEEE Antennas and Propagation Magazine

Jornais Acesso aberto

A MOTHER OF A PRISONER SINCE MONS., PUBLICIST. October 23., HERBERT E. D. BLAKISTON., E. H. GRIFFITHS., IAN HAMILTON.,

... Two Naval Losses. Destroyer And H.M.S Orama Sunk., Islyngton Result. Majority Of 1.177 For ...

1917 - Gale Group | TDA

Artigo

Hubert Schmidbaur, Gerhard Müller, G. Blaschke,

... H. Schmidbaur, G. Müller, U. Schubert und O. Orama, Angew. Chem. 90, 126 (1978); Angew. Chem., Int. ... 112, 1448 (1979); G. Müller, U. Schubert, O. Orama und H. Schmidbaur, Chem. Ber. 112, 3302 (1979). ...

Tópico(s): Organophosphorus compounds synthesis

1980 - Wiley | Chemische Berichte

Artigo Revisado por pares

Hubert Schmidbaur, Gerhard Müller, Ulrich S. Schubert, Olli Orama,

Stabile Komplexe des neuen Anions (1) sind jetzt synthetisiert und charakterisiert worden. In (3), M = Zn, Cd, Ni, sind sämtliche Me2PCH2-Gruppen äquivalent; wie die Röntgen-Strukturanalyse der Nickelverbindung zeigt, besitzen die Sechsringe Sesselkonformation.

Tópico(s): Organometallic Compounds Synthesis and Characterization

1978 - Wiley | Angewandte Chemie

Artigo Revisado por pares

S. Fontana, Olli Orama, E. O. Fischer, Ulrich Schubert, F. R. KREISSL,

Tópico(s): Organometallic Complex Synthesis and Catalysis

1978 - Elsevier BV | Journal of Organometallic Chemistry

Artigo Revisado por pares

Ulrich Schubert, P. Friedrich, Olli Orama,

The title compound crystallizes in the monoclinic space group P21/c with a 873, b 1133, c 1203 pm, β 110.90° (−30°C). The chromium atom is octahedrally coordinated by five CO and one tetrahydrofuran ligand. The CrO distance is 212.3 pm, the THF ligand shows a twist configuration. Die Titelverbindung kristallisiert in der monoklinen Raumgruppe P21/c mit a 873, b 1133, c 1203 pm, β 110.90° (−30°C). In dem Molekül ist das Chrom-Atom durch fünf CO und einen THF-Liganden oktaedrisch konfiguriert. Der Cr ...

Tópico(s): Asymmetric Hydrogenation and Catalysis

1978 - Elsevier BV | Journal of Organometallic Chemistry

Artigo Revisado por pares

Aref A. M. Aly, Dietmar Neugebauer, Olli Orama, Ulrich Schubert, Hubert Schmidbaur,

The novel structural unit Ag 3 B lies at the center of the complex formed from equimolar amounts of AgBr and the dpm ligand. The Ag…Ag distances are just too long for metal‐metal bonding. equation image

Tópico(s): Organometallic Complex Synthesis and Catalysis

1978 - Wiley | Angewandte Chemie International Edition

Artigo Revisado por pares

Aref A. M. Aly, Dietmar Neugebauer, Olli Orama, Ulrich S. Schubert, Hubert Schmidbaur,

Das neuartige Strukturelement Ag3Br steht im Zentrum des Komplexes aus äquimolaren Mengen AgBr und dem Liganden dpm. Die Ag…︁Ag-Abstände lassen darauf schließen, daß gerade noch keine Metall-Metall-Bindungen vorliegen.

Tópico(s): Metal complexes synthesis and properties

1978 - Wiley | Angewandte Chemie

Artigo Revisado por pares

Hubert Schmidbaur, Gerhard Müller, Ulrich Schubert, Olli Orama,

Stable complexes of the new anion (1) have now been synthesized and characterized. In (3), MZn, Cd, Ni, all the Me2PCH2 groups are equivalent. X-Ray structure analysis shows the six-membered rings of the nickel compound to have a chair conformation.

Tópico(s): Metal complexes synthesis and properties

1978 - Wiley | Angewandte Chemie International Edition

Artigo

Nicolás Linares-Orama, Lois Joan Sanders,

The performance of 30 normal and 30 language-deviant three-year-ols Spanish-speaking Puerto Rican children was compared on two measures of linguistic proficiency. They are mean length of utterance, following a scoring procedure adapted for Spanish speakers by the primary investigator, and Lees' Developmental Sentence Scoring procedure adapted for Spanish by Toronto. Results indicated that both methods of language assessment were sensitive to age and language status differences within the three-year ...

Tópico(s): Stuttering Research and Treatment

1977 - American Speech–Language–Hearing Association | Journal of Speech and Hearing Research

Artigo

Hubert Schmidbaur, Anette Wohlleben, Fritz Wagner, Olli Orama, Gottfried Hüttner,

Abstract Bis(diphenylphosphino)methan bildet 1:2‐Komplexe mit AuCl, Aul und AuCH 3 ( 1a–c ). Auch von 2,2‐Bis(diphenylphosphino)propan kann ein analoger AuCl‐Komplex erhalten werden ( 2a ). Zusätzlich zur üblichen analytischen und spektroskopischen Charakterisierung werden Au‐Mößbauer‐ und Au‐ESCA‐Spektren aufgenommen und von 1a eine Röntgenstrukturanalyse angefertigt. Die Ergebnisse sind wegen des kurzen, aber nichtbindenden AuAu‐Abstandes von Interesse.

Tópico(s): Nanocluster Synthesis and Applications

1977 - Wiley | Chemische Berichte

Artigo

Gottfried Hüttner, Olli Orama, Vêra Bejenke,

Die Strukturanalyse der Titelverbindung gibt erstmals Einsicht in den Bau eines Acylnickel-Komplexes und damit eines Molekültyps, der für manche katalytische Reaktionen als Zwischenstufe postuliert wird. Die Verbindung kristallisiert in der Raumgruppe P212121 mit vier Formeleinheiten in der Zelle; ihre Struktur wurde mit konventionellen Methoden bestimmt (R1 = 0.05). Das Molekül ist idealisiert quadratisch eben gebaut. Die Ebene der C(O)CH3-Gruppierung steht senkrecht auf der Koordinationsebene des ...

Tópico(s): Synthesis and characterization of novel inorganic/organometallic compounds

1976 - Wiley | Chemische Berichte

Artigo Revisado por pares

Gottfried Hüttner, Hans‐Georg Schmid, Albin Frank, Olli Orama,

Eine Verbindung mit einer Arsen‐Arsen‐Doppelbindung , das dem Azobenzol homologe Arsenobenzol, kann drei Cr(CO) 5 ‐Gruppen koordinieren, sò daß der Komplex (1) entsteht. Die Struktur des roten Produktes wurde röntgenographisch bewiesen magnified image .

Tópico(s): Organometallic Compounds Synthesis and Characterization

1976 - Wiley | Angewandte Chemie

Artigo Acesso aberto Revisado por pares

Gottfried Hüttner, Harry Müller, Vêra Bejenke, Olli Orama,

The title compound 1 contains complex stabilized 1,2-diphenyldiphosphane. It crystallizes in space group P2 1 /c with a = 1095(1), b = 1145(1), c = 1186(1) pm, β= 124.73(5)°, Z = 2. The structure has been solved by coventional methods; full matrix refinement converged at R 1 = 0.045. 1 shows crystallographic inversion symmetry and thus contains a meso-1,2-diphenyldiphosphane ligand. The P–P-distance is 225.8 pm, the Mn–P bonds are rather short (221.6 pm).

Tópico(s): Metal complexes synthesis and properties

1976 - De Gruyter | Zeitschrift für Naturforschung B

Artigo Revisado por pares

Olli Orama, Ulrich S. Schubert, F. R. KREISSL, Ernst Otto Fischer,

Abstract By reaction of [(π-H 5 H 5 )(CO) 2 Mn≡C-C 6 H 5 ]BCl 4 with NaRe(CO) 5 a new type of complex is obtained. It crystallizes in the monoclinic space group P2 1 /c, Z = 4, a - 1115(1), b= 1464(1), c= 1657(2) pm, β= 136.79(8)°. Structure determination reveals a binuclear complex, the Mn-Re bond (281.7(3) pm) of which is bridged by the a-carbon atom of a phenylketenyl group (Mn-C 221(3), Re-C 224(3) pm) and semi-bridged by a CO group (Mn-C 187(4), Re-C 254(4), Mn-C-0 160(3)°).

Tópico(s): Coordination Chemistry and Organometallics

1980 - De Gruyter | Zeitschrift für Naturforschung B

Artigo

Gerhard Mütter, Ulrich S. Schubert, Olli Orama Und, Hubert Schmidbaur,

[(CH3)3P]2BH2+Br- wurde mit zwei Äquivalenten C4H9Li metalliert und in situ mit einem halben Äquivalent eines [(CH3)3P]2MCI2-Komplexes (M = Ni, Pd, Pt) weiter umgesetzt, wobei die Titelverbindungen 1–3 erhalten werden. Diese neuartigen homoleptischen metallorganischen Verbindungen haben die Zusammensetzung H2B[(CH3)2PCH2]2M[CH2P(CH3)2]2BH2. Sie wurden durch chemische Analyse und infrarot-, massen- und 1H-, 11B-, 13C- sowie 31P-NMR-spektroskopische Daten charakterisiert. Die Kristall- und Molekülstruktur ...

Tópico(s): Organometallic Complex Synthesis and Catalysis

1979 - Wiley | Chemische Berichte

Artigo

Hans‐Peter Abicht, K. Issleib,

... Scholar 8 Schmidbaur, H.; Müller, G.; Schubert, U.; Orama, O.: Angew. Chem. 90 (1978) 126. 10.1002/ ...

Tópico(s): Chemical Synthesis and Analysis

1981 - Deutscher Verlag für Grundstoffindustrie | Zeitschrift für Chemie

Artigo Revisado por pares

Karl Heinz Dötz, Jochen Mühlemeier, Ulrich S. Schubert, Olli Orama,

Tópico(s): Organometallic Complex Synthesis and Catalysis

1983 - Elsevier BV | Journal of Organometallic Chemistry

Artigo Revisado por pares

Konrad Knoll, Olli Orama, Gottfried Hüttner,

A novel, cyclic conjugated 4π ligand containing a C2Fe2P ring is formed as complex 1 with Fe(CO)3 in the photochemical insertion of diphenylacetylene into the cluster [(μ3-RP){Fe(CO)3}3CO], R = p-methoxyphenyl. 1, with its almost planar ring, is isolobal with dihydro-1,2,5-thiadiborole ligands.—On thermal activation, a complex containing a “heterobutadiene” ligand is formed instead of 1.

Tópico(s): Organometallic Complex Synthesis and Catalysis

1984 - Wiley | Angewandte Chemie International Edition

Artigo Revisado por pares

Konrad Knoll, Olli Orama, Gottfried Hüttner,

Ein neuer, cyclisch konjugierter 4π—Ligand mit C2Fe2P—Ring entsteht als Komplex 1 mit Fe(CO)3 bei der photochemischen Einschiebung von Diphenylacetylen in den Cluster [(η3—RP){Fe(CO)3}3CO], R = p—Methoxyphenyl. 1 mit seinem nahezu planaren Ring ist mit Dihydro—1,2,5—thiadiborol—Liganden isolobal. — Bei thermischer Aktivierung bildet sich anstelle von 1 ein Komplex mit einem „Heterobutadien”︁—Ligand.

Tópico(s): Organoboron and organosilicon chemistry

1984 - Wiley | Angewandte Chemie

Artigo

M. Fernanda N. N. Carvalho, Armando J. L. Pombeiro, Ulrich Schubert, Olli Orama, Christopher J. Pickett, Raymond L. Richards,

The complexes [ReCl(N2)(CNR){P(OMe)3}3](R = Me, Et, But, C6H4Me-4, or C6H4Cl;-4) and [ReCl(N2)(CNMe)(PPh3){P(OEt)3}2] have been prepared by reaction of the corresponding diazenido-species [ReCl2(NNCOPh)(PPh3)x{P(OR′)3}3–x](x= 0 or 1; R′= Me or Et) with the appropriate isocyanide in refluxing methanol, and the X-ray crystal structure of mer-[ReCl(N2)(CNMe){P(OMe)3}3] is reported. In these complexes the isocyanide ligand undergoes protic attack with cleavage of the unsaturated NC bond to afford the corresponding ...

Tópico(s): Porphyrin and Phthalocyanine Chemistry

1985 - Royal Society of Chemistry | Journal of the Chemical Society. Dalton transactions

Artigo Revisado por pares

Jutta Borm, Gottfried Hüttner, Olli Orama, László Zsolnai,

The diphosphene compound [(CO)5Cr]2PhPPPh (II), which is formed from [(CO)5Cr]3PhPPPh (I) at 70°C, reacts with HX (X = OH, OMe, NHBu, Cl) to give the diphosphane species [(CO)5Cr]2PhP(H)-(X)PPh (III) with complete threoselectivity. Addition of Br2 to II leads to a mixture of both diastereoisomeric forms of [(CO)5Cr]2PhP(Br)(Br)PPh (IV). Sulfur adds in an erythro-selective 2+1- cycloaddition, yielding the thiadiphosphirane compound Va. Similarly, CH2N2 gives the diphosphirane complex Vb. 2 + 4-Cycloadditions ...

Tópico(s): Organometallic Complex Synthesis and Catalysis

1985 - Elsevier BV | Journal of Organometallic Chemistry

Artigo Revisado por pares

Gottfried Hüttner, Beate Sigwarth, Olaf Scheidsteger, László Zsolnai, Olli Orama,

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDiarsenic, As2, as a 4-, 6-, or 8-electron donor ligandGottfried Huttner, Beate Sigwarth, Olaf Scheidsteger, Laszlo Zsolnai, and Olli OramaCite this: Organometallics 1985, 4, 2, 326–332Publication Date (Print):February 1, 1985Publication History Published online1 May 2002Published inissue 1 February 1985https://pubs.acs.org/doi/10.1021/om00121a023https://doi.org/10.1021/om00121a023research-articleACS PublicationsRequest reuse permissionsArticle Views158Altmetric- ...

Tópico(s): Organometallic Complex Synthesis and Catalysis

1985 - American Chemical Society | Organometallics

Artigo Revisado por pares

Heinrich Lang, Olli Orama, Gottfried Hüttner,

Reaction of Na2[M2CO10] (M = Cr, Mo, W) with RPCl2 (R = mesityl, CH(SiMe3)2) yields, depending on the reaction conditions as well as on the steric demand of R, phosphinidene compounds [(CO)5M]2PR and diphosphene species [(CO)5M]nRPPR (n = 1, 2). With especially bulky substituents mono-nuclear diphosphene derivatives are the preferred reaction products. For dinuclear diphosphene compounds the Z-configuration is induced when R = mesityl while in other cases the E-configuration is the more stable form. The structures ...

Tópico(s): Coordination Chemistry and Organometallics

1985 - Elsevier BV | Journal of Organometallic Chemistry

Artigo Revisado por pares

Marjatta Orama, Heikki Saarinen, Jorma Korvenranta,

Abstract The protonation and complex formation equilibria of pyridine-2-carboxaldehyde oxime (1), 1-(2-pyridinyl)elhanone oxime (2) and 6-methylpyridine-2-carboxaldehyde oxime (3), HL, with copper(II) ion were studied in aqueous 0.1 M NaCl solution at 25°C by potentiometric titrations with the use of a glass electrode. Application of the least-squares computer program SUPERQUAD to the experimental data indicated that the following complex species are formed: Cu(HL)2 +, CuL+ (ligand 1), Cu(HL)2 2 + (ligands ...

Tópico(s): Protein Interaction Studies and Fluorescence Analysis

1990 - Taylor & Francis | Journal of Coordination Chemistry