Cyclopalladated Azo- and Azoxybenzene Mononuclear Complexes Containing a Chiral Chelating Ligand
作者： Mauro Ghedini , Daniela Pucci , Ana Viñuales
DOI: 10.1080/15421400701205586
关键词:
摘要: Chiral metallomesogens are materials of great interest for different technological applications. In most the reported chiral liquid crystals, centre is located remote from central core molecule. Our goal to prepare new featuring stereogenic as close metal ion possible. Accordingly, mononuclear cyclopalladated complexes based on azo or azoxybenzene ligands (4,4′-bis(octyloxybenzoyloxy)azobenzene, HAzoCOO-8, p-azoxyanisole, HAzoxy, 4,4′-bis(hexyloxy)azobenzene, HAzo-6, 4,4′-bis(hexyloxy)azoxybenzene, HAzoxy-6) containing chelating ligand (D-(−)-α-Phenylglycinol, H(Phenylgly)) have been synthesized and fully characterized. 1H NMR spectra show presence just one isomer while those products obtained azobenzene evidence formation isomeric mixtures. Nematic mesophases observed [(AzoCOO-8)Pd(Phenylgly)] [(Azoxy-6)Pd...
sci-hub.se 参考文章(23)
Heinz-Siegfried Kitzerow, Christian Bahr, Chirality in Liquid Crystals ,(2013)
Mauro Ghedini, Stefania Morrone, Giovanni De Munno, Alessandra Crispini, Transition metals complexed to ordered mesophases Journal of Organometallic Chemistry. ,vol. 415, pp. 281- 291 ,(1991) , 10.1016/0022-328X(91)80126-5
Richard W. Date, Eva Fernandez Iglesias, Kathryn E. Rowe, James M. Elliott, Duncan W. Bruce, Metallomesogens by ligand design Dalton Transactions. pp. 1914- 1931 ,(2003) , 10.1039/B212610A
Jairton Dupont, Crestina S. Consorti, John Spencer, The potential of palladacycles: more than just precatalysts Chemical Reviews. ,vol. 105, pp. 2527- 2571 ,(2005) , 10.1021/CR030681R
Anne-Marie Giroud-Godquin, Peter M. Maitlis, Metallomesogens: Metal Complexes in Organized Fluid Phases Angewandte Chemie International Edition in English. ,vol. 30, pp. 375- 402 ,(1991) , 10.1002/ANIE.199103751
Mauro Ghedini, Stefania Morrone, Oriano Francescangeli, Roberto Bartolino, Metallomesogens. Synthesis and Mesomorphic Properties of 2-Hydroxy-4-n-Alkoxy-4'-n-Alkylazobenzenes Palladium(II) Complexes Chemistry of Materials. ,vol. 6, pp. 1971- 1977 ,(1994) , 10.1021/CM00047A014
A P Polishchuk, Tatiana V Timofeeva, Metal-containing liquid-crystal phases Russian Chemical Reviews. ,vol. 62, pp. 291- 321 ,(1993) , 10.1070/RC1993V062N04ABEH000019
Duncan W. Bruce, Dalton perspectives. The synthesis and properties of metal-containing liquid-crystal systems: what can the metal do for you? Journal of The Chemical Society-dalton Transactions. pp. 2983- 2989 ,(1993) , 10.1039/DT9930002983
Mauro Ghedini, Daniela Pucci, Edoardo Cesarotti, Oriano Francescangeli, Roberto Bartolino, Transition metals complexed in ordered mesophases. XV. Synthesis, characterization and mesomorphic properties of new potentially ferroelectric liquid crystals: Acetylacetonate p,p′-dialkoxyazobenzene mononuclear palladium(II) complexes Liquid Crystals. ,vol. 16, pp. 373- 380 ,(1994) , 10.1080/02678299408029162
M. Talarico, G. Barberio, D. Pucci, M. Ghedini, A. Golemme, Undoped Photorefractive Ferroelectric Liquid Crystal Advanced Materials. ,vol. 15, pp. 1374- 1377 ,(2003) , 10.1002/ADMA.200305118