Upper-rim functionalization and supramolecular polymerization of a feet-to-feet-connected biscavitand

An octaiodobiscavitand was synthesized via an aromatic Finkelstein iodination reaction in good yield. An octa-functionalized biscavitand self-assembled to form a supramolecular polymer in the solid state.

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The structure of [Cu(bipy)3][Cu(bipy)(ala)(ClO4)2]ClO4 � a Compound with Two Different Coordination Modes in the same Complex

Revista de Chimie ◽

10.37358/rc.08.11.2003 ◽

2008 ◽

Vol 59 (11) ◽

Author(s):

Mircea Braban ◽

Ionel Haiduc

Keyword(s):

Solid State ◽

Chelate Ring ◽

Octahedral Complex ◽

State Structure ◽

Complex Species ◽

Solid State Structure ◽

Coordination Modes ◽

Coordination Center ◽

Self Assembled ◽

Chelate Rings

The paper describes the solid state structure of a compound of composition [Cu(bipy)3][Cu(bipy)(ala) (ClO4)2]ClO4, in which both the cation and anion are octahedral complex species with copper(II) as coordination center. The cation contains three chelate rings formed by bipy; the anion contains in the quatorial plane a CuONC2 chelate ring formed by the alaninato ligand and a CuN2C2 chelate ring formed by bipy, with two monodentate perchorato ligands in axial positions completing the six-coordination. In the crystal p-p stackings lead to a supramolecular self-assembled structure.

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Solid-State Transformation from Self-Assembled Nanosheets into Ordered Nanorods

The Journal of Physical Chemistry B ◽

10.1021/jp0561367 ◽

2006 ◽

Vol 110 (9) ◽

pp. 4054-4057 ◽

Cited By ~ 7

Author(s):

Sanjit Konar ◽

Z. Ryan Tian

Keyword(s):

Solid State ◽

State Transformation ◽

Solid State Transformation ◽

Self Assembled

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Oriented arrangement of simple monomers enabled by confinement: towards living supramolecular polymerization

Nature Communications ◽

10.1038/s41467-021-22827-4 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Yingtong Zong ◽

Si-Min Xu ◽

Wenying Shi ◽

Chao Lu

Keyword(s):

Activation Barrier ◽

Degree Of Polymerization ◽

Supramolecular Polymer ◽

Energy Principle ◽

Spontaneous Nucleation ◽

Pyrene Derivatives ◽

Multifunctional Molecules ◽

Double Hydroxide ◽

Supramolecular Polymerization ◽

Kinetics Of

AbstractThe living supramolecular polymerization technique provides an exciting research avenue. However, in comparison with the thermodynamic spontaneous nucleation, using simple monomers to realize living supramolecular polymerization is hardly possible from an energy principle. This is because the activation barrier of kinetically trapped simple monomer (nucleation step) is insufficiently high to control the kinetics of subsequent elongation. Here, with the benefit of the confinement from the layered double hydroxide (LDH) nanomaterial, various simple monomers, (such as benzene, naphthalene and pyrene derivatives) successfully form living supramolecular polymer (LSP) with length control and narrow dispersity. The degree of polymerization can reach ~6000. Kinetics studies reveal LDH overcomes a huge energy barrier to inhibit undesired spontaneous nucleation of monomers and disassembly of metastable states. The universality of this strategy will usher exploration into other multifunctional molecules and promote the development of functional LSP.

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