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preparation and characterization of {[la2(ia)4(h2o)4][μ3-(ia)]2[mn(h2o)4]}n2ncl
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نویسنده
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chen wentong ,luo hui ,zhang zhuanxia ,lin longzhen ,tao wenjing
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منبع
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journal of the iranian chemical society - 2020 - دوره : 17 - شماره : 1 - صفحه:37 -42
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چکیده
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A novel 4f–3d lanthanum–manganese isonicotinic acid complex, {[la2(ia)4(h2o)4][μ3-(ia)]2[mn(h2o)4]}n2ncl (1) (ia = isonicotinic acid anion), was prepared and characterized. complex 1 is characterized by a two-dimensional (2-d) layer. the lanthanum ion possesses a square anti-prismatic structure, while manganese ion possesses a sixfold coordination octahedron. the photoluminescence spectra revealed that it displays a yellow emission. the sharp band at 592 nm is rose from the unique emission 4t1–6a1 transition of mn2+. the diffuse reflectance experiment uncovered the presence of a 2.83 ev band gap. a novel 4f–3d lanthanum–manganese isonicotinic acid complex has been prepared and characterized. it is characterized by a 2-d layer-like structure. solid-state photoluminescence spectra revealed that it displays an emission in the yellow region. the sharp band at 592 nm is ascribed to the characteristic emission 4t1–6a1 transition of mn2+ ions. solid-state uv/vis diffuse reflectance spectroscopy uncovered the presence of a wide optical band gap of 2.83 ev.
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کلیدواژه
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photoluminescence ,lanthanum ,band gap ,semiconductor ,manganese
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آدرس
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jinggangshan university, institute of applied chemistry, china, jinggangshan university, institute of applied chemistry, china, jinggangshan university, institute of applied chemistry, china, jinggangshan university, institute of applied chemistry, china, jinggangshan university, institute of applied chemistry, china
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Authors
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