Výsledky vyhledávání - "Margareta Zehnder"

Efficient syntheses of 4′-(2-thienyl)- and 4′-(3-thienyl)-2,2′:6′,2″-terpyridine: preparation and characterization of Fe(II), Ru(II), Os(II) and Co(II) complexes

Autor: Markus Neuburger, Edwin C. Constable, Catherine E. Housecroft, Robyn W. Handel, Emma R. Schofield, Margareta Zehnder

Publikováno v: Polyhedron. 23:135-143

Efficient and convenient methods for the preparation of thienyl-substituted 2,2`:6`,2``-terpyridines are reported. The formation and characterization of Fe(II), Ru(II), Os(II) and Co(II) complexes containing the isomeric ligands 4`-(2-thienyl)-2,2`:6

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::709c6d0aa881be1876f4a0d2256ec44d
https://doi.org/10.1016/j.poly.2003.09.019

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Functionalised 2,2′-bipyridine ligands for the preparation of metallostars; X-ray structures of free ligands and preparation of copper(I) and silver(I) complexes

Autor: Edwin C. Constable, Markus Neuburger, Catherine E. Housecroft, Ingo Poleschak, Margareta Zehnder

Publikováno v: Polyhedron. 22:93-108

2,2-Bipyridine ligands bearing functionalised aryl substituents have been prepared with the aim of subsequent functionalisation and the preparation of multinuclear metallostars. The key intermediates are compounds containing 4-methoxyphenyl substitue

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::822aee58e455ceec2d49a5d4cb1e6ca2
https://doi.org/10.1016/s0277-5387(02)01310-4

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X-ray crystallographic and NMR spectroscopical characterization of intermediates in the Pd-catalyzed allylic substitution reaction with 4-substituted phosphinooxazolines. Correlation between intermediate structure and product configuration

Autor: Dietmar A. Plattner, Markus Neuburger, Margareta Zehnder, Silvia Schaffner

Publikováno v: Inorganica Chimica Acta. 337:287-298

The novel P,N-ligand 2-[2-(diphenylphosphino)phenyl]-4,5-dihydro-4-methyl-4-phenyloxazole (2a) has been synthesized. The corresponding [PdII(η3-diphenylallyl) (2a)]PF6 (3a) and [PdII(η3-1,3-dimethylallyl) (2a)]PF6 (4a) complexes have been studied b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ded5f89fdd494c97ca02e14d2f2c2683
https://doi.org/10.1016/s0020-1693(02)00998-2

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Electronic Energy Transfer and Collection in Luminescent Molecular Rods Containing Ruthenium(II) and Osmium(II) 2,2′:6′,2″-Terpyridine Complexes Linked by Thiophene-2,5-diyl Spacers

Autor: Emma R. Schofield, Catherine E. Housecroft, Lucia Flamigni, Francesco Barigelletti, Edwin C. Constable, Dieter Fenske, Margareta Zehnder, Markus Neuburger, Johannes G. Vos, Egbert Figgemeier, Susana Encinas

Publikováno v: Chemistry - A European Journal. 8:137-150

The electronic absorption spectra, luminescence spectra and lifetimes (in MeCN at room temperature and in frozen n-C3H7CN at 77 K), and electrochemical potentials (in MeCN) of the novel dinuclear [(tpy)Ru(3)Os(tpy)]4+ and trinuclear [(tpy)Ru(3)Os(3)R

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::572a96874dd71bbf0b442f3136726001
https://doi.org/10.1002/1521-3765(20020104)8:1<137::aid-chem137>3.0.co

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Dicobalt cluster functionalized 2,2′:6′,2″-terpyridine ligands and their ruthenium(II) complexes

Autor: Catherine E. Housecroft, Margareta Zehnder, Lesley A. Johnston, Dominique Armspach, Markus Neuburger, Edwin C. Constable

Publikováno v: Polyhedron. 20:483-492

A series of 2,2′:6′,2″-terpyridine (tpy) ligands functionalized in the 4′-position with alkyne substituents has been prepared and characterized. Treatment of these ligands with [RuCl3(tpy)] yields complexes with pendant alkyne groups which th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4358e36a4efd848d15b4c5129d59b2bb
https://doi.org/10.1016/s0277-5387(00)00631-8

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[Untitled]

Autor: Silvia Schaffner, Markus Neuburger, Shuangying Liu, Margareta Zehnder, Jürgen F. K. Müller

Publikováno v: Helvetica Chimica Acta. 83:1256-1267

The novel chiral P,N-ligand 2-[2-(diphenylphosphino)phenyl]-5,6-dihydro-4-phenyl-4H-1,3-oxazine (4) was synthesized. The corresponding {dihydro[(phosphino-ϰP)aryl]oxazine-ϰN} (η3-diphenylallyl)palladium(II) hexafluorophosphate 5 and the analogous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c030789126cf898c844dd10adaa9e349
https://doi.org/10.1002/1522-2675(20000607)83:6<1256::aid-hlca1256>3.0.co

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Programmed assembly of heteromultinuclear complexes using 4′-diphenylphosphino-2,2′:6′,2″-terpyridine

Autor: Bernhard Springler, Alain G. Schneider, Edwin C. Constable, Markus Neuburger, Catherine E. Housecroft, Margareta Zehnder

Publikováno v: Inorganica Chimica Acta. :49-55

The complex [Ru(tpy)(1)](2+) (tpy = 2,2`:6`,2``-terpyridine; 1 = 4`-diphenylphosphino-2,2`:6`,2``-terpyridine) was prepared and reacted with trans-[PdCl2(NCMe)(2)] to give trans-[PdCl2(mu-1)Ru(tpy)(2)](4+) in high yield. With trans-[PtCl2(NCPh)(2)],

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::829c1b4d87c68940167095b68a2fbce8
https://doi.org/10.1016/s0020-1693(99)00479-x

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Regio- and diastereo-selective formation of dicopper(I) and disilver(I) double helicates with chiral 6-substituted 2,2′∶6′,2″-terpyridines

Autor: Torsten Kulke, Dieter Fenske, Markus Neuburger, Catherine E. Housecroft, Margareta Zehnder, Gerhard Baum, Edwin C. Constable

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :945-959

Two enantiomeric pairs of chiral terpy ligands (I and II; III and IV) bearing enantiopure bornyloxy substituents at the 6-position were prepared in high yield, stereoretentive reactions from (1R)-endo- or (1S)-endo-borneol; compounds I, II and III we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1a77f1a2b5c60a88e3a2532445462b3
https://doi.org/10.1039/a909158k

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Development of supramolecular structure through alkylation of pendant pyridyl functionality

Autor: Yves C. Zimmermann, David Phillips, Emma Sparr, Edwin C. Constable, Derek A. Tocher, Margareta Zehnder, Catherine E. Housecroft, Markus Neuburger, Paul R. Raithby, Emma R. Schofield

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :2219-2228

The complex 12+ which has two pendant 4-pyridyl substituents may be viewed as a metal-containing analogue of 4,4′-bipyridine. The complex undergoes N-alkylation reactions with a variety of alkylating agents to give more highly functionalised tetrac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9c8d65dc5767de4368459c61bdd7671
https://doi.org/10.1039/b000940g

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