Journal of Crystallography / 2013 / Article / Tab 1

Research Article

The Use of a Flexible Calix[4]arene Template to Stabilize a Cyclooctatetraindiyl Samarium-Potassium Complex

Table 1

Calix arene elliptical parametersa in 3 compared to compounds 2 and 4 a.

CompoundDa (Å)Db (Å) Reference

3
 Ring I9.937(5)5.467(5)0.835
 Ring II9.854(5)5.396(5)0.836
2
 Ring I9.689(3)5.816(3)0.799[15]
4
 Ring I8.861(4)7.752(4)0.484id
 Ring II9.668(4)7.441(4)0.638id
 Ring III9.503(4)5.694(4)0.800id

Da, Db, and are the long and short distances and eccentricity of the ellipse which encompasses the four para aromatic carbons of the ligand.

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