Fig. 5: Formation and characterization of rotaxane-type threaded wheel–axle assembly. | Communications Chemistry

Fig. 5: Formation and characterization of rotaxane-type threaded wheel–axle assembly.

From: Non-threaded and rotaxane-type threaded wheel–axle assemblies consisting of dinickel(II) metallomacrocycle and dibenzylammonium axle

Fig. 5

a Formation of rot-L2Ni2•G1•PF6 by metalation of the pseudorotaxane H4L2•G1•PF6 (axle-first method). b ESI-TOF mass spectra of (i) nthr-L2Ni2•G1•PF6, (ii) rot-L2Ni2•G1•PF6, (iii) nthr-L2Ni2•G1•PF6 + CsOTf (2 equiv), and (iv) rot-L2Ni2•G1•PF6 + CsOTf (2 equiv). c–e X-ray crystal structure of rot-L2Ni2•G1•PF6 (only one of the crystallographically independent molecules is shown). c Thermal ellipsoid plot (15% probability level), d space-filling model, and e capped stick model with peripheral groups omitted to show N–H‧‧‧O and C–H‧‧‧O interactions.

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