Photochromism of Metal Complexes Composed of Diarylethene Ligands and Zn(II), Mn(II), and Cu(II) Hexafluoroacetylacetonates
作者:Kenji Matsuda、Kohsuke Takayama、Masahiro Irie
DOI:10.1021/ic035020r
日期:2004.1.1
Metal complexes composed of bidentate 1,2-bis(2-methyl-5-(4-pyridyl)-3-thienyl)perfluorocyclopentene (1a) and monodentate 1-(2-methyl-5-phenyl-3-thienyl)-2-(2-methyl-5-(4-pyridyl)-3-thienyl)perfluorocycl opentene (2a) photochromic ligands and M(hfac)(2) (M = Zn(II), Mn(II), and Cu(II)) were prepared, and their photoinduced coordination structural changes were studied. X-ray crystallographic analyses
Dithienylethenes having a pyridinium cation at one and both thiophene rings were synthesized. The derivatives with two pyridinium cation showed the cyclization quantum yield as high as 0.71, which is much larger than the values of the monocation derivative and the neutral form. This can be explained by the conformation of the open-ring isomer of the diarylethenes.
Photochromism of Metal Complexes Composed of Diarylethene Ligands and ZnCl<sub>2</sub>
作者:Kenji Matsuda、Yoshihiro Shinkai、Masahiro Irie
DOI:10.1021/ic049686c
日期:2004.6.28
Metal complexes composed of ZnCl(2) and bidentate 1,2-bis(2-methyl-5-(4-pyridyl)-3-thienyl)perfluorocyclopentene (1a) and monodentate 1-(2-methyl-5-phenyl-3-thienyl)-2-(2-methyl-5-(4-pyridyl)-3-thienyl)perfluorocycl opentene (2a) photochromic ligands were prepared. X-ray crystallographic analyses showed the formation of a coordination polymer and a discrete 2:1 complex for 1a.ZnCl(2) and 2a(2).ZnCl(2)
Combining organic photochromism with inorganic paramagnetism—optical tuning of the iron(ii) electronic structure
作者:K. Sénéchal-David、N. Zaman、M. Walko、E. Halza、E. Rivière、R. Guillot、B. L. Feringa、M.-L. Boillot
DOI:10.1039/b715017b
日期:——
The crystalline photochromism of a diarylethene pyridyl ligand is applied to the modulation of the electronic environment of a high-spin FeII metal ion.