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Three‐Component Self‐Assembly Changes its Course: A Leap from Simple Polymers to 3D Networks of Spherical Host–Guest Assemblies
Author(s) -
Peresypkina Eugenia,
Grill Kevin,
Hiltl Barbara,
Virovets Alexander V.,
Kremer Werner,
Hilgert Jan,
Tremel Wolfgang,
Scheer Manfred
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202103178
Subject(s) - self assembly , polymer , crystallography , transmission electron microscopy , chemistry , nuclear magnetic resonance spectroscopy , yield (engineering) , materials science , nanotechnology , stereochemistry , organic chemistry , metallurgy
One‐pot self‐assembly reactions of the polyphosphorus complex [Cp*Fe(η 5 ‐P 5 )] ( A ), a coinage metal salt AgSbF 6 , and flexible aliphatic dinitriles NC(CH 2 ) x CN (x=1–10) yield 1D, 2D, and 3D coordination polymers. The seven‐membered backbone of the dinitrile was experimentally found as the borderline for the self‐assembly system furnishing products of different kinds. At x<7, various rather simple polymers are exclusively formed possessing either 0D or 1D Ag/ A structural motifs connected by dinitrile spacers, while at x≥7, the self‐assembly switches to unprecedented extraordinary 3D networks of nano‐sized host–guest assemblies (SbF 6 )@[( A ) 9 Ag 11 ] 11+ (x=7) or ( A )@[( A ) 12 Ag 12 ] 12+ (x=8–10) linked by dinitriles. The polycationic nodes represent the first superspheres based on A and silver and are host–guest able. All products are characterized by NMR spectroscopy, mass spectrometry, and single‐crystal X‐ray diffraction. The assemblies [( A ) 12 Ag 12 ] 12+ were visualized by transmission electron microscopy.