Synthesis, characterization, and reactivity of the first uranium metallocene 1,2-bis(diphenylphosphino)acetylene complexes
| Autor: | David E. Morris, Jaqueline L. Kiplinger, Justin K. Pagano, Brian L. Scott |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
Chemistry Ligand chemistry.chemical_element Uranium 010402 general chemistry 01 natural sciences 0104 chemical sciences Characterization (materials science) Inorganic Chemistry chemistry.chemical_compound Acetylene Elemental analysis Polymer chemistry Materials Chemistry Reactivity (chemistry) Physical and Theoretical Chemistry Metallocene |
| Zdroj: | Inorganica Chimica Acta. 482:347-352 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/j.ica.2018.06.010 |
| Popis: | Two new uranium metallacyclopropenes, (C5Me4R)2U(η2-Ph2PC CPPh2) (R = Me, Et) were prepared by reducing the corresponding (C5Me4R)2UCl2 complexes with KC8 in the presence of 1,2-bis(diphenylphosphino)acetylene (Ph2P C C PPh2). Both compounds were fully characterized by a combination of elemental analysis and multinuclear NMR, UV–visible–NIR, and IR spectroscopies. Differences in the electronic spectra of these novel compounds and the known (C5Me5)2U(η2-Me3SiC CSiMe3) are discussed. Also presented is the solid-state structure of (C5Me4Et)2U(η2-Ph2PC CPPh2), which reveals significant distortions of the coordinated 1,2-bis(diphenylphosphino)acetylene (Ph2P C C PPh2) ligand. |
| Databáze: | OpenAIRE |
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