Research Article
The Use of a Flexible Calix[4]arene Template to Stabilize a Cyclooctatetraindiyl Samarium-Potassium Complex
Table 1
Calixarene elliptical parametersa in 3 compared to compounds 2 and 4 a.
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Da, Db, and are the long and short distances and eccentricity of the ellipse which encompasses the four para aromatic carbons of the ligand. |