Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Alex von Zelewsky,† and"'
Autor:
Alex von Zelewsky
Publikováno v:
CHIMIA, Vol 68, Iss 5 (2014)
As a contribution to the scientific symposium, November 22nd, 2013, commemorating the Nobel Prize awarded to Alfred Werner in 1913, a presentation of the development of stereochemistry of coordination compounds during the past 120 years was given. St
Externí odkaz:
https://doaj.org/article/2e20fc60d2fd453d800bd00b13bf58f7
Publikováno v:
Inorganica Chimica Acta. 475:200-206
Two new chiral bis-bidentate, C2-symmetrical ligands belonging to the Chiragen family have been synthesised and characterised. They are designed for polynuclear self-assemblies since the two (−)-5,6-pinenebipyridines units are connected by bridges
Autor:
Thomas Bark, Alex von Zelewsky
Publikováno v:
CHIMIA, Vol 54, Iss 10 (2000)
Chiral pyridine-type ligands are readily available in enantiomerically pure form from enantiopure natural products via a Kröhnke reaction. The ease of synthesis allows numerous variations of the ligands which all display a particular coordination be
Externí odkaz:
https://doaj.org/article/ab90ffab98e443539d2deef566ebad26
Autor:
Alex von Zelewsky, Peter Belser
Publikováno v:
CHIMIA, Vol 52, Iss 10 (1998)
Two related directions of materials research are described: i) The synthesis of photonic materials, based on transition-metal compounds mainly with ruthenium and osmium as the photoactive centers. The devices envisaged are antenna molecules, molecula
Externí odkaz:
https://doaj.org/article/83d77aea4ae34a99b409e62b8ddeb8e8
Autor:
Alex von Zelewsky
Publikováno v:
CHIMIA, Vol 48, Iss 9 (1994)
A general account is given of the synthetic research carried out in the field of coordination chemistry in one group in the Institute of Inorganic Chemistry in Fribourg. With the goal of synthesizing artificial structures, which can function as photo
Externí odkaz:
https://doaj.org/article/e9611bed844444c1bb0fa6a45bd61b71
Autor:
Alex von Zelewsky, Huong P. Nguyen, Liangru Yang, Gaël Labat, Gilles Muller, Helen Stoeckli-Evans
Publikováno v:
Inorganica Chimica Acta. 362:3853-3856
The stereoselective synthesis of a highly luminescent neutral Ir(III) complex comprising two bidentate chiral, cyclometalating phenylpyridine derivatives, and one acetylacetonate as ligands is described. The final complex and some intermediates were
Autor:
Xavier Fontrodona, Isabel Romero, Teodor Parella, Miquel Solà, Alex von Zelewsky, Antoni Llobet, Albert Poater, Xavier Sala, Montserrat Rodríguez
Publikováno v:
Inorganic Chemistry. 47:8016-8024
A new set of Ru−Cl complexes containing either the pinene[5,6]bpea ligand (L1) or the C₃ symmetric pinene[4,5]tpmOMe (L2) tridentate ligand in combination with the bidentate (B) 2,2′-bipyridine (bpy) or 1,2-diphenylphosphinoethane (dppe) with g
Publikováno v:
Inorganica Chimica Acta. 360:775-784
In this article we report some results obtained during 20 years of collaboration with the group of Prof. Balzani. The small review covers Ruthenium and some Osmium compounds, from cage to multinuclear complexes and molecular switches. The review does
Autor:
Antonia Neels, Laurence Jungo, Dušan Drahoňovský, Thomas Belser, Gaël Labat, Alex von Zelewsky, Ulrich Knof, Helen Stoeckli-Evans
Publikováno v:
Dalton Trans.. :1444-1454
A C2-symmetric enantiopure 4,5-bis(pinene)-2,2'-bipyridine ligand (-)-L was used to investigate the diastereoselectivity in the formation of [ML3]2+ coordination species (M = Fe(II), Ru(II), Os(II), Zn(II), Cd(II), Cu(II), Ni(II)), and [ML2Cl2] (M =
Autor:
Alex von Zelewsky, Dušan Drahoňovský
Publikováno v:
Helvetica Chimica Acta. 88:496-506
A publication by Alexander P. Smirnoff in Helvetica Chimica Acta in 1920 [6] describes the first synthesis of a coordination species, i.e., of tris(propane-1,2-diamine-κN1,κN2)platinum(4+) ([PtIV(pn)3]4+), where it was shown that the configuration