New emissive fac-tricarbonylchlorobis(ligand)rhenium(I) complexes prepared from pyridine/thiophene hybrid ligands
摘要:
Stille coupling between tributyl-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-stannane and 4-bromopyridine resulted in the preparation of the new pyridine/thiophene hybrid ligand 4-(2,3-dihydro-thielio[3,4-b][1,4]dioxin-5-yl)-pyridine [4-py-EDOT] (1). Reaction of 1, 4-thiophen-2-yl-pyridine (2), or 4-[2,2']bithiophenyl-5-yl-pyridine (3) with ClRe(CO)(5) resulted in the isolation of complexes 4-6, ClRe(L)(2)(CO)(3), where L = 1, 2, or 3 respectively. The solid-state structure of 4 was determined by X-ray crystallography, which clearly shows the fac arrangement of the three CO ligands and the two 4-py-EDOT ligands arranged cis to one another. The metal complexes 4-6 have been characterized by H-1 and C-13 NMR, ESI or FAB MS, FTIR, UV-Vis, fluorescence, and elemental analysis. (C) 2004 Elsevier B.V. All rights reserved.
New emissive fac-tricarbonylchlorobis(ligand)rhenium(I) complexes prepared from pyridine/thiophene hybrid ligands
摘要:
Stille coupling between tributyl-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-stannane and 4-bromopyridine resulted in the preparation of the new pyridine/thiophene hybrid ligand 4-(2,3-dihydro-thielio[3,4-b][1,4]dioxin-5-yl)-pyridine [4-py-EDOT] (1). Reaction of 1, 4-thiophen-2-yl-pyridine (2), or 4-[2,2']bithiophenyl-5-yl-pyridine (3) with ClRe(CO)(5) resulted in the isolation of complexes 4-6, ClRe(L)(2)(CO)(3), where L = 1, 2, or 3 respectively. The solid-state structure of 4 was determined by X-ray crystallography, which clearly shows the fac arrangement of the three CO ligands and the two 4-py-EDOT ligands arranged cis to one another. The metal complexes 4-6 have been characterized by H-1 and C-13 NMR, ESI or FAB MS, FTIR, UV-Vis, fluorescence, and elemental analysis. (C) 2004 Elsevier B.V. All rights reserved.
series of high-performance photosensitizers (PSs) was designed and synthesized using a molecular engineering approach for building blocks of RuII metallacycles. Subsequently, the photosensitizer with the highest reactive oxygen species (ROS) generation efficiency, biocompatibility, and phototoxicity index (PI), RuD, was selected for safe and effectivephotodynamictherapy in vitro and in vivo.
Electrochromic Polymer Films Containing Re(I) and Pt(II) Metal Centers
作者:Joshua R. Farrell、David P. Lavoie、Ryan T. Pennell、Anıl Çetin、Janet L. Shaw、Christopher J. Ziegler
DOI:10.1021/ic700635h
日期:2007.8.1
Three Re(I) complexes (3, 5, and 7) (Re(CO)(3)CI(L)(2)) and three new Pt(II) complexes (4, 6, and 8) ([Pt(P(Et)(3))(2)(L)(2)](OTf)(2)), where L = pyridine, 1 (4-Py-EDOT) or 2 (4-Py-bithiophene), were prepared and characterized. The solid-state structures of 4 and 5 were determined by X-ray crystallography. Electrochromic polymeric films of 2, 5, and 6 were prepared and characterized.