3-Trifluoroacetyl-d-camphor

The structures are known for a number of these compounds thus, of the eight-coordinate compounds, Eu(acac)3(phen) is square antiprismatic, Eu(dpm)3(py)2 and Nd(tta)3(Ph3PO)2 are dodecahedral seven-coordinate Lu(dpm)3(3-picoline) is a face-capped trigonal prism and Eu(dpm)3(quinuclidine) a capped octahedron. Nine-coordination is found in Eu(dpm)3(terpy) and also in Pr(facam)3(DME)3(facam = 3-trifluoroacetyl-D-camphorate). 

Gas chromatographic studies of ethers, ketones, alcohols, esters, olefins, and alkanes, using columns with liquid phases containing P-diketonate complexes in squalane, revealed that the more nucleophilic organic substrates reacted more strongly with the P-diketonates than the less basic ones. Er complexes of fluorinated P-diketones (especially 3-trifluoroacetyl-d-camphor-ate, facam) reacted more strongly with these nucleophiles than did similar non-fluorinated Er complexes. The retention time of THE increased exponentially with the inverse of metal ionic radius in the facam chelates of a variety... 

The structure of the dimethylformamide adduct of a chiral shift reagent based on 3-trifluoroacetyl-d-camphor has been determined (Cunningham and Sievers, 1975). This compound is a dimeric species, (facam)3Pr(DMF)3Pr(facam)3 in which the three DMF molecules serve as bridging groups. The two praseodymium atoms are nine-coordinate with the oxygen atoms occupying the vertices of a distorted monocapped square antiprism. This structure is particularly... 

Fig. 6. Chromatogram of separation of unsaturated C -C compounds. Column, 2 m X 1.75 mm I.D. stationary phase, 15% 0.01 Af dicarbonylrhodium 3-(trifluoroacetyl) camphorate on Chromosorb P. I emperature, 30°C. Peaks 1 = acetylene 2 = isobutene 3 = frans-butene-2 4 = cw-butene-2 5 = butene-1. From ref. 26.

Fig. 7. Chromatogram of separation of deuterated ethylenes. Column, 200 m X 0.5 mm I.D. Stationary phase, 0.02Af solution of dicarbonylrhodium 3-(trifluoroacetyl)camphorate in squalane. Temperature, 22°C. Peaks l = Cj"H, 2 = C,H, 3=CjH3 Hj 4 = C3H3 H3 5=CjH H3 6 = C3 H,. From ref. 27.

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