The advancements in the field of mechanically interlocked molecular systems (MIMs) has concurrently restructured the material chemistry frontiers and provided ample scope to explore new dimensions for applications and diversity creation.
A series of [2]rotaxanes
with various functional groups in the
axle component was synthesized by the oxidative dimerization of alkynes,
which is mediated by a macrocyclic phenanthroline–Cu complex.
The rotaxanes were fully characterized by spectroscopic methods, and
the structure of a rotaxane was determined by X-ray crystallographic
analysis. The interaction between the ring component and the axle
component was studied in detail to understand the conformation of
the rotaxanes. The presence of the hydrogen bond between the phenanthroline
moiety in the macrocyclic component and the acidic proton in the axle
component influenced the conformation of rotaxane.
Oxidative dimerization of terminal alkynes (Glaser coupling) triggered by spirofluorene derived macrocyclic phenanthroline–Cu complexes was implemented to synthesize a series of novel [2]rotaxanes. Size and structural variations among the components...
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