| 刘荫秋.一个单核三价铬配合物的晶体结构、发光性质及热稳定性[J].井冈山大学自然版,2020,41(2):29-31 |
| 一个单核三价铬配合物的晶体结构、发光性质及热稳定性 |
| CRYSTAL STRUCTURE, PHOTO-LUMINESCENT PROPERTIES AND THERMAL STABILITY OF A MONONUCLEAR CHROMIUM(III) COMPLEX |
| 投稿时间：2019-11-06 修订日期：2020-02-07 |
| DOI：10.3969/j.issn.1674-8085.2020.02.005 |
| 中文关键词: X-光衍射 晶体结构 三价铬 发光性质 热稳定性 |
| 英文关键词: X-ray diffraction crystal structure Chromium(III) luminescence thermal stability |
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| 中文摘要: |
| 我们重新合成了曾经报道过的反式K[Cr(C2O4)2·(H2O)2]2·3H2O三价铬配合物, 并借助先进的单晶衍射仪和更先进的解析手段得到了该配合物更加精确的结构模型，该配合物属于单斜晶系，P2/n（No. 13）空间群，晶胞相关参数为：a = 7.8827 (4) Å，b = 5.7296(3) Å，c = 13.6447(7) Å，β= 103.506(5)°，Z = 2，Dc =1.980 Mg/m3，V = 599.22(5) Å3。热重测试结果显示该配合物在357 K以前是稳定的，在410 nm最有效的紫外光光源的激发下，配合物在610 nm处有一个尖锐的发射峰。 |
| 英文摘要: |
| Trans-potassium-bis(oxalate-O,O)-diaqua-chromium(III)-trihydrate, a ever reported Chromium(III) complex, was synthesized and its more precise structure was re-defined by more advanced X-ray diffractometer and analysis methods. It crystallized in monoclinic, space group P2/n (No. 13), with a = 7.8827 (4) Å, b = 5.7296(3) Å, c = 13.6447(7) Å, β= 103.506(5)°, Z = 2, Dc =1.980 Mg/m3, V = 599.22(5) Å3. Thermal analysis experiment reveals the complex keeps its thermal stability till about 357 K. Under ultraviolet radiation of 410 nm, a sharp emissions locating at about 610 nm was found. |
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