کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1231538 1495259 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, crystal structure and photoluminescence of phosphorescent copper (I) complexes containing hole-transporting carbazoly moiety
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Synthesis, crystal structure and photoluminescence of phosphorescent copper (I) complexes containing hole-transporting carbazoly moiety
چکیده انگلیسی

Two new mononuclear Cu(I) complexes based on 2-(2′-pyridyl)benzimidazolyl derivative ligand containing hole-transporting carbazole (L), [Cu(L)(DPEphos)](BF4) and [Cu(L)(PPh3)2](BF4), where L = (4-(9H-carbazol-9-yl)phenyl)methyl-2-(2′-pyridyl)benzimidazole; DPEphos = bis[2-(diphenylphosphino)phenyl]ether and PPh3 = triphenylphosphine, have been synthesized and characterized on the basis of elemental analysis, 1H NMR and FT-IR spectra. The structures of the ligand L and the Cu(I) complexes were characterized by single crystal X-ray diffraction. The results reveal that in the Cu(I) complexes the central Cu(I) ions assume the irregular distorted tetrahedral geometry and are tetra-coordinated by the two nitrogen atoms from L ligand and two phosphorus atoms from ancillary ligands. The photophysical properties of the complexes were examined by using UV–vis, photoluminescence spectroscopic analysis. The complexes exhibit weak MLCT absorption bands ranging from 360 to 480 nm, and display strong orange phosphorescence in the solid states at room temperature, which is completely quenched in solutions.

One new ligand L and two new copper (I) complexes based on 2-(2′-pyridyl)benzimidazolyl derivative ligand containing hole-transporting carbazole, L, [Cu(L)(DPEphos)](BF4) and [Cu(L)(PPh3)2](BF4), were synthesized and characterized. Their structures have been characterized by X-ray crystallography. The complexes exhibit strong orange emissions.Figure optionsDownload as PowerPoint slideHighlights
► One new ligand L and two new Cu(I) complexes based on 2-(2′-pyridyl)benzimidazolyl derivative ligand were synthesized.
► Their structures were characterized by elemental analysis, 1H NMR, FT-IR spectra and single crystal X-ray diffraction.
► The complexes exhibit strong orange emissions in solid state.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 109, 15 May 2013, Pages 179–185
نویسندگان
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