Terpyridine-Based, Flexible Tripods: From a Highly Symmetric Nanosphere to Temperature-Dependent, Irreversible, 3D Isomeric Macromolecular Nanocages.
A three-dimensional, highly symmetric sphere-like nanocage was synthesized using a terpyridine (tpy)-based, flexible tris-dentate ligand and characterized by single crystal X-ray analysis. To introduce more rigidity, one of the tpy units of the tris-dentate ligand was preblocked by stable <tpy-Ru2+-tpy> connectivity to form the corresponding Ru2+-dimer. The complexation between Ru2+-dimer and Fe2+demonstrates an unexpected temperature-dependent assembly between two irreversible isomeric 3D nanocages. Investigation of the coordination process and structural configurations of the metal-ligand framework, affected by the introduction of rigidity and in the presence of external stimuli (temperature), is reported.
Sourav
0000-0001-5564-3087
S
Chakraborty
Wei
0000-0001-7866-9917
W
Hong
Kevin J
KJ
Endres
Ting-Zheng
TZ
Xie
Department of Chemistry, University of South Florida , 4202 East Fowler Avenue, Tampa, Florida 33620, United States.
Lukasz
L
Wojtas
Dendronex, LLC , 109 Runway Drive, Lubbock, Texas 79416, United States.
Charles N
CN
Moorefield
Chrys
0000-0002-7916-4782
C
Wesdemiotis
George R
0000-0001-6019-5071
GR
Newkome