Triptycene-Based Molecular Rods for Langmuir-Blodgett Monolayers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F22%3A00556491" target="_blank" >RIV/61388963:_____/22:00556491 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/22:10454363

Výsledek na webu

<a href="https://doi.org/10.1002/cplu.202200023" target="_blank" >https://doi.org/10.1002/cplu.202200023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cplu.202200023" target="_blank" >10.1002/cplu.202200023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Triptycene-Based Molecular Rods for Langmuir-Blodgett Monolayers

Popis výsledku v původním jazyce

Herein we introduce fully modular synthesis leading to three representative examples of rigid molecular rods that are intended to form sturdy monolayers on various surfaces. These molecules contain two triptycene units that are designed to interlock into a compact “double-decker“ structure. Two of the three final products provided suitable crystals for X-ray diffraction (analyzed on synchrotron), allowing deeper insight into packing in the 3-D crystal lattice. The acidity of all three compounds were determined by capillary electrophoresis, and the pK(a) values ranged between 2.06-2.53. All three rigid rods easily formed Langmuir-Blodgett monolayers (LBMs) on the water-air interfaces, with the area per molecule equal to 55-59 angstrom(2)/molecule, suggesting tight intermolecular packing. The thickness of all three films reached similar to 19 angstrom after transfer to a gold (111) surface, meaning that individual molecules are tilted maximally 38 degrees from the axis perpendicular to the surface. The structure of one of these films on a gold (111) surface was visualized by AFM. These geometrically unique molecules represent promising platforms with a wide scope of applicability in the supramolecular architecture.

Název v anglickém jazyce

Triptycene-Based Molecular Rods for Langmuir-Blodgett Monolayers

Popis výsledku anglicky

Herein we introduce fully modular synthesis leading to three representative examples of rigid molecular rods that are intended to form sturdy monolayers on various surfaces. These molecules contain two triptycene units that are designed to interlock into a compact “double-decker“ structure. Two of the three final products provided suitable crystals for X-ray diffraction (analyzed on synchrotron), allowing deeper insight into packing in the 3-D crystal lattice. The acidity of all three compounds were determined by capillary electrophoresis, and the pK(a) values ranged between 2.06-2.53. All three rigid rods easily formed Langmuir-Blodgett monolayers (LBMs) on the water-air interfaces, with the area per molecule equal to 55-59 angstrom(2)/molecule, suggesting tight intermolecular packing. The thickness of all three films reached similar to 19 angstrom after transfer to a gold (111) surface, meaning that individual molecules are tilted maximally 38 degrees from the axis perpendicular to the surface. The structure of one of these films on a gold (111) surface was visualized by AFM. These geometrically unique molecules represent promising platforms with a wide scope of applicability in the supramolecular architecture.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10401 - Organic chemistry

Projekt

<a href="/cs/project/GA20-13745S" target="_blank" >GA20-13745S: Mohou světlem poháněné molekulární motory pohybovat mikroskopickými objekty?</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ChemPlusChem

ISSN

2192-6506

e-ISSN

2192-6506

Svazek periodika

87

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

e202200023

Kód UT WoS článku

000759353800001

EID výsledku v databázi Scopus

2-s2.0-85125084992