Tungsten pentacarbonyl complexes of 1,3-benzoxaphospholes

Autor: Curtis E. Moore, John D. Protasiewicz, Sloane Evariste, Arnold L. Rheingold, Alexandra B. Grimm
Rok vydání: 2017
Předmět:
Zdroj: Journal of Organometallic Chemistry. 851:9-13
ISSN: 0022-328X
DOI: 10.1016/j.jorganchem.2017.08.021
Popis: 2-R-1,3-Benzoxaphospholes (R-BOPs) are examples of fluorescent conjugated materials possessing low coordinate phosphorus centers. A series of 2-(p-XC6H4)-BOPs (X = H, Cl, Br, Me, OMe) react with [W(CO)5(NCMe)] to produce the crystalline complexes [W(CO)5(2-Ar-BOP)] (2a-e). All complexes were characterized by NMR spectroscopy and by single crystal X-ray diffraction. The crystal structures all displayed extensive π-stacking of the BOP ligands and gear locking of the CO groups. Addition of the protecting [W(CO)5] group to the BOPs was discovered to significantly diminish fluorescence of the BOP moiety.
Databáze: OpenAIRE