Synthesis and Structural Characterization of New Hindered Aryl Phosphorus Centers (Aryl = 2,6-Dimesitylphenyl)
作者： Eugenijus Urnéžius , John D. Protasiewicz
DOI: 10.1080/13583149612331338697
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摘要: The new sterically encumbered dichlorophosphine ArPCl2 (Ar = 2,6-dimesitylphenyl Dmp,1) has been prepared from the corresponding aryliodide, n-butyllithium, and phosphorus trichloride. DmpPCl2 served as a precursor for phosphinic acid DmpP(O)(OH)H(2), primary phosphine DmpPH2 (3), diphosphene DmpP PDmp (4). Compounds 2 4 have crystallographically characterized. solid state structure of reveals existence dimeric acids associated by hydrogen bonding in manner analogous to carboxylic dimers. P‒O distances are 1.508(2) 1.521(2) A, O‒H O‒H…O 1.06(4) 1.46(4), consistent with localized bonding. features trans configuration about P bond short length 1.985 (2) A. Crystal data compound 2: 9.4552(8) b 11.174(1) c 11.711(1) α 65.775(8) β 75.735(7)°, γ 69.621(7)°, triclinic, P—1,Z 2. 4: 10.940(1) 22.323(2) ...
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