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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Intramolecularly coordinated heteroleptic organostannylene tungsten pentacarbonyl complexes 4-tBu-2,6-[P(O)(OiPr)_2]_2C _6H_2Sn(X)W(CO)_5 (X = Cl, F, PPh_2, PPh_2[W(CO)_5]). Syntheses and reactivity
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Intramolecularly coordinated heteroleptic organostannylene tungsten pentacarbonyl complexes 4-tBu-2,6-[P(O)(OiPr)_2]_2C _6H_2Sn(X)W(CO)_5 (X = Cl, F, PPh_2, PPh_2[W(CO)_5]). Syntheses and reactivity

机译:分子内配位杂原子有机锡亚锡五羰基钨配合物4-tBu-2,6- [P(O)(OiPr)_2] _2C _6H_2Sn(X)W(CO)_5(X = Cl,F,PPh_2,PPh_2 [W(CO) _5])。合成与反应性

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The synthesis of the intramolecularly coordinated heteroleptic organostannylene tungsten pentacarbonyl complexes 4-tBu-2,6-[P(O)(OiPr) _2]_2C_6H_2Sn(X)W(CO)_5 (1, X = Cl; 2, X = F; 3, X = PPh_2) and of 4-tBu-2,6-[P(O)(OiPr) _2]_2C_6H_2Sn[W(CO)_5]PPh _2[W(CO)_5], 4, are reported. UV-irradiation of compound 4 in tetrahydrofurane serendipitously gave the bis(organostannylene) tungsten tetracarbonyl complex cyclo-O_2W[OSn(R)]_2W(CO)_4 (R = 4-tBu-2,6-[P(O)(OiPr)_2]_2C_6H_2), 5, that contains an unprecedented W(0)-Sn-O-W(vi) bond sequence. The compounds 1-5 were characterized by means of single crystal X-ray diffraction analysis, ~1H, ~(13)C, ~(19)F, ~(31)P, ~(119)Sn NMR, and IR spectroscopy, electrospray ionization mass spectrometry (ESI-MS), and elemental analysis. Compound 4 features a hindered rotation about the Sn-P bond.
机译:分子内配位的杂配有机锡亚锡钨五羰基配合物4-tBu-2,6- [P(O)(OiPr)_2] _2C_6H_2Sn(X)W(CO)_5的合成(1,X = Cl; 2,X = F ; 3,X = PPh_2)和4-tBu-2,6- [P(O)(OiPr)_2] _2C_6H_2Sn [W(CO)_5] PPh_2 [W(CO)_5],4。化合物4在四氢呋喃中的紫外线照射意外地产生了双(有机锡亚锡基)钨四羰基配合物环-O_2W [OSn(R)] _ 2W(CO)_4(R = 4-tBu-2,6- [P(O)(OiPr )_2] _2C_6H_2),5,其中包含前所未有的W(0)-Sn-OW(vi)键序列。借助单晶X射线衍射分析,〜1H,〜(13)C,〜(19)F,〜(31)P,〜(119)Sn NMR和IR光谱对化合物1-5进行表征电喷雾电离质谱(ESI-MS)和元素分析。化合物4的特征在于绕Sn-P键的旋转受阻。

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