0000000000121536
AUTHOR
Peter Lönnecke
Polynuclear copper(II) complexes with hexadentate Schiff base directed by the counter ion. Syntheses, crystal structures and magnetic properties
Abstract Four new complexes, [Cu 9 L 6 ( µ 3 -ClO 4 ) 2 ](ClO 4 ) 4 ·4CHCl 3 1 , [Cu 3 L 2 (H 2 O) 2 ](ClO 4 ) 2 ·3H 2 O 2 , [Cu 6 L 4 (N 3 ) 2 ](ClO 4 ) 2 3 and [Cu 2 L(CH 3 COO) 2 ] 4 , where H 2 L stands for the Schiff base N , N ′-bis[(2-hydroxybenzilideneamino)-propyl]-piperazine, were obtained and structurally characterized. Compounds 1 , 2 and 3 contain the Cu 3 L 2 2+ entities in which L 2− acts in an unsymmetrical mode with N 3 O donor set wrapped around marginal copper(II) and with the remained NO sets bound to the central copper ion. The marginal copper(II) ions are in distorted square pyramidal environment, whereas that of the central one is square planar. In 1 , the peripheral …
Crystal structure of 3-(tri-phenyl-phosphoranyl-idene)-2,5-di-hydro-furan-2,5-dione tetra-hydro-furan monosolvate.
The title pseudo-polymorph of 3-(triphenylphosphoranylidene)-2,5-dihydrofuran-2,5-dione crystallizes with a tetrahydrofuran solvent molecule, viz. C22H17O3P·C4H8O. The succinic anhydride ring is approximately planar (r.m.s. deviation = 0.032 Å). The tetrahydrofuran molecule is disordered over two orientations about a pseudo-twofold axis with refined occupancy ratio 0.718 (4):0.282 (4). In the crystal, C—H...O hydrogen bonds link molecules of the dihydrofuran-2,5-dione derivative into chains parallel to the b axis and arranged into layers stacked along [100] alternating with hydrogen-bonded tetrahydrofuran layers.
CCDC 1558560: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1558856: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1558855: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024
CCDC 1558561: Experimental Crystal Structure Determination
Related Article: Ildiko Buta, Liliana Cseh, Carmen Cretu, Diana Aparaschivei, Catalin Maxim, Peter Lönnecke, Evamarie Hey-Hawkins, Nicolae Stanica, Eva Ohler, Eva Rentschler, Marius Andruh, Otilia Costisor|2017|Inorg.Chim.Acta|475|133|doi:10.1016/j.ica.2017.10.024