Self-assembly with block copolymers through metal coordination of SCS-PdII pincer complexes and pseudorotaxane formation

Clinton R. South; Mary Nell Higley; Ken C F Leung; Daniela Lanari; Alshakim Nelson; Robert H. Grubbs; J. Fraser Stoddart; Marcus Weck

doi:10.1002/chem.200501028

Self-assembly with block copolymers through metal coordination of SCS-Pd^II pincer complexes and pseudorotaxane formation

Clinton R. South, Mary Nell Higley, Ken C F Leung, Daniela Lanari, Alshakim Nelson, Robert H. Grubbs^*, J. Fraser Stoddart, Marcus Weck

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Poly(norbornene)-based block copolymers containing side chains of palladated pincer complexes/dibenzo[24]crown-8 or palladated pincer complexes/dibenzylammonium salts were synthesized. Noncovalent functionalization was accomplished with their corresponding recognition units through simple 1:1 addition with association constants (K_a) greater than 10 ⁵M^-1. The self-assembly processes were monitored by using both ¹H NMR spectroscopy and isothermal titration calorimetry. In all cases, we found that the self-assembly of the recognition units along each polymer block does not preclude the self-assembly processes along the other block.

Original language	English (US)
Pages (from-to)	3789-3797
Number of pages	9
Journal	Chemistry - A European Journal
Volume	12
Issue number	14
DOIs	https://doi.org/10.1002/chem.200501028
State	Published - May 3 2006

Keywords

Copolymerization
Crown compounds
Palladium
Pincer complexes
Supramolecular chemistry

ASJC Scopus subject areas

Catalysis
Organic Chemistry

Access to Document

10.1002/chem.200501028

Cite this

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title = "Self-assembly with block copolymers through metal coordination of SCS-PdII pincer complexes and pseudorotaxane formation",

abstract = "Poly(norbornene)-based block copolymers containing side chains of palladated pincer complexes/dibenzo[24]crown-8 or palladated pincer complexes/dibenzylammonium salts were synthesized. Noncovalent functionalization was accomplished with their corresponding recognition units through simple 1:1 addition with association constants (Ka) greater than 10 5M-1. The self-assembly processes were monitored by using both 1H NMR spectroscopy and isothermal titration calorimetry. In all cases, we found that the self-assembly of the recognition units along each polymer block does not preclude the self-assembly processes along the other block.",

keywords = "Copolymerization, Crown compounds, Palladium, Pincer complexes, Supramolecular chemistry",

author = "South, {Clinton R.} and Higley, {Mary Nell} and Leung, {Ken C F} and Daniela Lanari and Alshakim Nelson and Grubbs, {Robert H.} and Stoddart, {J. Fraser} and Marcus Weck",

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T1 - Self-assembly with block copolymers through metal coordination of SCS-PdII pincer complexes and pseudorotaxane formation

AU - South, Clinton R.

AU - Higley, Mary Nell

AU - Leung, Ken C F

AU - Lanari, Daniela

AU - Nelson, Alshakim

AU - Grubbs, Robert H.

AU - Stoddart, J. Fraser

AU - Weck, Marcus

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AB - Poly(norbornene)-based block copolymers containing side chains of palladated pincer complexes/dibenzo[24]crown-8 or palladated pincer complexes/dibenzylammonium salts were synthesized. Noncovalent functionalization was accomplished with their corresponding recognition units through simple 1:1 addition with association constants (Ka) greater than 10 5M-1. The self-assembly processes were monitored by using both 1H NMR spectroscopy and isothermal titration calorimetry. In all cases, we found that the self-assembly of the recognition units along each polymer block does not preclude the self-assembly processes along the other block.

KW - Copolymerization

KW - Crown compounds

KW - Palladium

KW - Pincer complexes

KW - Supramolecular chemistry

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