185547-75-5Relevant academic research and scientific papers
Photoresponsive polymers and block copolymers by molecular recognition based on multiple hydrogen bonds
Concell?n, Alberto,Blasco, Eva,Pi?ol, Milagros,Oriol, Luis,Díez, Isabel,Berges, Cristina,Sánchez-Somolinos, Carlos,Alcalá, Rafael
, p. 3173 - 3184 (2014)
A new methacrylate containing a 2,6-diacylaminopyridine (DAP) group was synthesized and polymerized via RAFT polymerization to prepare homopolymethacrylates (PDAP) and diblock copolymers combined with a poly(methyl methacrylate) block (PMMA-b-PDAP). These
MOLECULAR RECOGNITION: CYCLOBUTANE THYMINE DIMERS AS RIGID TWO-SITE RECEPTORS
Hirst, Simon C.,Hamilton, Andrew D.
, p. 2401 - 2404 (1990)
Cyclobutane photodimers of thymine were synthesized and shown, in organic solvents, to bind to mono- and bis-diaminopyridine derivatives.
ORGANIC MOLECULES FOR TERAHERTZ TAGGING APPLICATIONS
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Page/Page column 11, (2015/07/23)
The present invention discloses substituted heterocyclic compounds and /or aromatic compounds containing amide and/or urea groups exhibiting resonance in the range of 0.1- 10 THz. The invention also discloses binary molecular complexes based on the substituted heterocyclic compounds and/or aromatic compounds containing amide and/or urea groups of the present invention. The compounds and binary molecular complexes of the present invention have varying molecular mass and hydrogen bond strengths demonstrating several resonances below 10 THz. The compounds and binary molecular complexes of the present invention are customizable for various applications, such as authentication of a product.
Improved imide receptors by imprinting using pyrimidine-based fluorescent reporter monomers
Manesiotis, Panagiotis,Hall, Andrew J.,Sellergren, Boerje
, p. 2729 - 2738 (2007/10/03)
(Chemical Equation Presented) Optically responsive receptors toward imides based on 6-substituted 2,4-bis(acrylamido)pyrimidines are presented. The monomers were readily prepared in good yield. Solution binding to 1-benzyluracil (BU) monitored by 1H NMR appeared lower than a previously reported pyridine-based monomer. However, as indicated by 1H NMR and IR spectral investigations, the association strength was demonstrated to be "masked" by dimerization of the pyrimidine-based monomer units. Thus, from dilution experiments, a dimerization constant of 731 M-1 was estimated for the pyrimidine-based monomer 2,4-bis(acrylamido)-6- piperidinopyrimidine whereas for the pyridine-based monomer 2,6-bis(acrylamido) pyridine, no self-association was observed. This precluded an accurate determination of the binding constant for BU to the former monomer whereas for the latter a binding constant of 757 M-1 was measured. Despite the strong self-association, the novel monomer was shown to lead to enhanced imprinting effects when compared to imprinted polymers prepared analogously, but using the pyridine-based monomer as the recognition element. This was attributed to a higher intrinsic binding affinity exhibited by the pyrimidine based host monomer vis a vis the guest and the existence in the former of more than one interaction site for the guest. The monomers exhibited fluorescence emission informative of the mode of monomer incorporation in the polymer and the presence of guest species. Thus, the fluorescence was rapidly and selectively quenched upon template addition, with the degree of quenching correlating with binding affinity and the amount of template bound to the polymer.
