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An enantiomerically pure hydrogen-bonded assembly.

Nature

Prins LJ, De Jong F, Timmerman P, Reinhoudt DN.
PMID: 11089967
Nature. 2000 Nov 09;408(6809):181-4. doi: 10.1038/35041530.

Chiral molecules have asymmetric arrangements of atoms, forming structures that are non-superposable mirror images of each other. Specific mirror images ('enantiomers') may be obtained either from enantiomerically pure precursor compounds, through enantioselective synthesis, or by resolution of so-called racemic...

Thermodynamic stabilities of linear and crinkled tapes and cyclic rosettes in melamine--cyanurate assemblies: a model description.

Journal of the American Chemical Society

Bielejewska AG, Marjo CE, Prins LJ, Timmerman P, de Jong F, Reinhoudt DN.
PMID: 11480972
J Am Chem Soc. 2001 Aug 08;123(31):7518-33. doi: 10.1021/ja010664o.

In this paper we describe model calculations for the self-assembly of N,N-disubstituted melamines 1 and N-substituted cyanuric acid or 5,5-disubstituted barbituric acid derivatives 2 into linear or crinkled tapes and cyclic rosettes via cooperative hydrogen bond formation. The model...

Conformation of Hexahydroxycalix[6]arene.

The Journal of organic chemistry

van Hoorn WP, van Veggel FC, Reinhoudt DN.
PMID: 11667624
J Org Chem. 1996 Oct 04;61(20):7180-7184. doi: 10.1021/jo960865o.

No abstract available.

Enantioselective noncovalent synthesis of hydrogen-bonded double-rosette assemblies.

Chemistry (Weinheim an der Bergstrasse, Germany)

Prins LJ, Verhage JJ, De Jong F, Timmerman P, Reinhoudt DN.
PMID: 12012414
Chemistry. 2002 May 17;8(10):2302-13. doi: 10.1002/1521-3765(20020517)8:10<2302::AID-CHEM2302>3.0.CO;2-C.

The noncovalent synthesis of enantiomerically pure hydrogen-bonded assemblies (M)- and (P)-1(3).(CA)(6) is described. These dynamic assemblies are of one single handedness (M or P), but do not contain any chiral components. They are prepared by using the "chiral memory"...

Fluorescence of dyes adsorbed on highly organized, nanostructured gold surfaces.

Chemistry (Weinheim an der Bergstrasse, Germany)

Levi SA, Mourran A, Spatz JP, van Veggel FC, Reinhoudt DN, Möller M.
PMID: 12203307
Chemistry. 2002 Aug 16;8(16):3808-14. doi: 10.1002/1521-3765(20020816)8:16<3808::AID-CHEM3808>3.0.CO;2-6.

It is shown that fluorescent dyes can be adsorbed selectively on gold nanoparticles which are immobilized on a glass substrate and that the fluorescence originating from the adsorbed dyes exhibits significantly less quenching when compared to dyes adsorbed on...

Growth of individual hydrogen-bonded nanostructures on gold monolayers.

Chemical communications (Cambridge, England)

Garcia-Lopez JJ, Zapotoczny S, Timmerman P, van Veggel FC, Vancso GJ, Crego-Calama M, Reinhoudt DN.
PMID: 12613608
Chem Commun (Camb). 2003 Feb 07;(3):352-3. doi: 10.1039/b210996d.

The growth of individual nanometer-sized (3.4 +/- 1.4 nm) hydrogen bonded assemblies 1(2) x (DEB)6 on gold monolayers was achieved through an exchange reaction between single isolated calix[4]arene dimelamine 2 (1.1 +/- 0.2 nm) embedded in hexanethiol monolayers and...

Molecular design of "super" hydrogelators: understanding the gelation process of azobenzene-based sugar derivatives in water.

Organic letters

Kobayashi H, Friggeri A, Koumoto K, Amaike M, Shinkai S, Reinhoudt DN.
PMID: 11975594
Org Lett. 2002 May 02;4(9):1423-6. doi: 10.1021/ol025519+.

[structure: see text]. 1: R = beta-D-glucopyranoside. 2: R = alpha-D-glucopyranoside. 3: R = alpha-D-galactopyranoside. 4: R = alpha-D-mannopyranoside. As an attempt to rationally design aqueous organogelators, a bolaamphiphilic azobenzene derivative (1) bearing two sugar groups was synthesized. Compound...

Nanostructures via noncovalent synthesis: 144 hydrogen bonds bring together 27 components.

The Journal of organic chemistry

Paraschiv V, Crego-Calamas M, Fokkens RH, Padberg CJ, Timmerman P, Reinhoudt DN.
PMID: 11735506
J Org Chem. 2001 Dec 14;66(25):8297-301. doi: 10.1021/jo0105742.

This paper describes the spontaneous and reversible assembly of approximately 20 kDa synthetic hydrogen-bonded assemblies via the formation of 144 cooperative hydrogen bonds. These nanostructures ( approximately 3.0 x 5.5 nm), consisting of 27 different components, have been carefully...

Optical fiber-based on-line UV/Vis spectroscopic monitoring of chemical reaction kinetics under high pressure in a capillary microreactor.

Chemical communications (Cambridge, England)

Benito-Lopez F, Verboom W, Kakuta M, Gardeniers JH, Egberink RJ, Oosterbroek ER, van den Berg A, Reinhoudt DN.
PMID: 15928782
Chem Commun (Camb). 2005 Jun 14;(22):2857-9. doi: 10.1039/b500429b. Epub 2005 Apr 22.

With a miniaturized (3 microL volume) fiber-optics based system for on-line measurement by UV/Vis spectroscopy, the reaction rate constants (at different pressures) and the activation volumes (deltaV(not =)) were determined for a nucleophilic aromatic substitution and an aza Diels-Alder...

Self-assembled ionophores from isoguanosine: diffusion NMR spectroscopy clarifies cation's and anion's influence on supramolecular structure.

Chemistry (Weinheim an der Bergstrasse, Germany)

Evan-Salem T, Frish L, van Leeuwen FW, Reinhoudt DN, Verboom W, Kaucher MS, Davis JT, Cohen Y.
PMID: 17136779
Chemistry. 2007;13(7):1969-77. doi: 10.1002/chem.200601015.

Cation-templated self-assembly of the lipophilic isoguanosine (isoG 1) with different monovalent cations (M(+)=Li(+), Na(+), K(+), NH(4) (+), and Cs(+)) was studied in solvents of different polarity by using diffusion NMR spectroscopy. Previous studies that did not use diffusion NMR...

Supramolecular layer-by-layer assembly: alternating adsorptions of guest- and host-functionalized molecules and particles using multivalent supramolecular interactions.

Journal of the American Chemical Society

Crespo-Biel O, Dordi B, Reinhoudt DN, Huskens J.
PMID: 15898811
J Am Chem Soc. 2005 May 25;127(20):7594-600. doi: 10.1021/ja051093t.

The stepwise construction of a novel kind of self-assembled organic/inorganic multilayers based on multivalent supramolecular interactions between guest-functionalized dendrimers and host-modified gold nanoparticles has been developed, yielding supramolecular layer-by-layer assembly. The deposition process was monitored by surface plasmon resonance...

Coulomb blockade of small Pd clusters.

The Journal of chemical physics

Oncel N, Hallback AS, Zandvliet HJ, Speets EA, Ravoo BJ, Reinhoudt DN, Poelsema B.
PMID: 16095380
J Chem Phys. 2005 Jul 22;123(4):044703. doi: 10.1063/1.1996567.

Single-electron tunneling through Au substrate-alkanethiol-Pd cluster-tip junctions is investigated with scanning tunneling spectroscopy. The measured I(V) curves reveal several characteristic features of the Coulomb blockade, namely, the presence of a Coulomb gap and a Coulomb staircase. By using the...

Showing 1 to 12 of 121 entries