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Synthesis and Crystal Structures of Two Metal-Radical Complexes
1
作者 Youjuan Zhang Caiwen Zhang Jing Chen 《Open Journal of Inorganic Chemistry》 2021年第3期85-94,共10页
Two new M(II)-radical complexes [M(hfac)<sub>2</sub>(IM-<span style="font-size:10.0pt;font-family:;" "=""><i></i></span><i>o<span style="font-... Two new M(II)-radical complexes [M(hfac)<sub>2</sub>(IM-<span style="font-size:10.0pt;font-family:;" "=""><i></i></span><i>o<span style="font-size:10.0pt;font-family:;" "=""></span></i>-QN)] (M = Ni(<strong>1</strong>), Zn(<strong>2</strong>);IM-<span style="white-space:normal;font-size:10pt;font-family:;" "=""><i></i></span><i><span style="white-space:normal;">o</span><span style="white-space:normal;font-size:10pt;font-family:;" "=""></span></i>-QN = 4'-quinoxalinyl-substituted imino nitroxide;<span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>hfac<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = hexafluoroa-cetylacetonate) have been synthesized and characterized by X-ray diffraction analysis, element analyses, IR and UV-Visible spectroscopy. X-ray analysis reveal that the structures of both complexes are similar configuration and differently spatial symmetries. The complex <strong>1</strong> crystallizes in the triclinic <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>P<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i>ī space group with the respective cell parameters: <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>a<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 9.1189(18) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>b<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 9.836(2) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>c<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 18.537(4) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>α<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 75.92(3)<span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"="">°</span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>β<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i>= 81.95(3)<span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"="">°</span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>γ<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 69.32(3)<span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"="">°</span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>V<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 1506.1(5) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span><sup>3</sup>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>Z<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 2, whereas the complex <strong>2</strong> is in monoclinic C2/c space group with the respective cell parameters: <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>a<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 26.996(5) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>b<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 9.5223(19) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>c<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 23.961(5) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>α<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 90.00<span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"="">°</span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>β<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i>= 91.07(3)<span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"="">°</span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>γ<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i>= 90.00<span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#ffffff;"="">°</span>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>V<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 6158(2) <span style="color:#4F4F4F;font-family:-apple-system, " font-size:16px;white-space:normal;background-color:#f7f7f7;"=""><span style="color:#4F4F4F;font-family:-apple-system, "font-size:16px;white-space:normal;background-color:#F7F7F7;">&#197</span></span><sup>3</sup>, <span style="font-family:" font-size:13.3333px;white-space:normal;"=""><i></i></span><i>Z<span style="font-family:" font-size:13.3333px;white-space:normal;"=""></span></i> = 8. In two new M(II)-radical complexes, the central M(II)(Ni(<strong>1</strong>) and Zn(<strong>2</strong>)) ions are coordinated by four oxygen atoms from two hfac and two nitrogen atoms from imino nitroxide radicals to form a distorted octahedron. Additionally, the optical properties and thermal analysis of the two complexes are reported. 展开更多
关键词 m(ii)-radical complex Quinoxalinyl-Substituted Imino Nitroxide SYNTHESIZED Characterized
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