Two-dimensional molecular networks at the solid/liquid interface and the role of alkyl chains in their building blocks

• Suyi Liu,
• Yasuo Norikane and
• Yoshihiro Kikkawa

Beilstein J. Nanotechnol. 2023, 14, 872–892, doi:10.3762/bjnano.14.72

• the diversification of 2D assemblies [76][77][81][82][83][84][118][119][120][121][122][123][124][125][126][127][128][129][130][131][132][133][134][135][136][137][138]. Some recent examples of the odd–even effect in 2D systems are presented below. 5.1 Anthraquinone derivatives The 2D structures of

• anthraquinone derivatives (Scheme 9) substituted with a single alkoxy chain at the 1- (1-HA-OCn) and 2-position (2-HA-OCn) were studied by STM [129][130]. In both cases, weak O···H–C hydrogen bonding between adjacent anthraquinone moieties enabled pairing in a head-to-head manner. However, the orientation of

• the anthraquinone moieties depended on the (odd or even) number of carbon atoms in the interdigitated alkyl chains (C15 and C16), resulting in a periodic change in the 2D structures. Although both 1-HA-OC15 and 1-HA-OC16 displayed linear structures, the orientation of the anthraquinone moieties was

Electrochemically derived functionalized graphene for bulk production of hydrogen peroxide

• Munaiah Yeddala,
• Pallavi Thakur,
• Anugraha A and
• Tharangattu N. Narayanan

Beilstein J. Nanotechnol. 2020, 11, 432–442, doi:10.3762/bjnano.11.34

• produced through the complex and energy-intensive anthraquinone method [4], and although it is popular, it has drawbacks such as side reactions, which consume the catalyst leading to the regeneration and hydrogenation of the catalyst [4]. Alternative routes for peroxide generation include direct

Nanoconjugates of a calixresorcinarene derivative with methoxy poly(ethylene glycol) fragments for drug encapsulation

• Alina M. Ermakova,
• Julia E. Morozova,
• Yana V. Shalaeva,
• Victor V. Syakaev,
• Aidar T. Gubaidullin,
• Alexandra D. Voloshina,
• Vladimir V. Zobov,
• Irek R. Nizameev,
• Olga B. Bazanova,
• Igor S. Antipin and
• Alexander I. Konovalov

Beilstein J. Nanotechnol. 2018, 9, 2057–2070, doi:10.3762/bjnano.9.195

• than QC. Dox is an anthraquinone compound with amino and hydroxy groups, which can form multiple H-bonds with oxygen atoms of the ethyleneoxy groups of the macrocycle. Hence, Dox has more possibilities to interact with micelles of 3. With the same mass of 3, the decrease of the initial mass of Dox (mS0

Mechanistic insights into plasmonic photocatalysts in utilizing visible light

• Kah Hon Leong,
• Azrina Abd Aziz,
• Lan Ching Sim,
• Pichiah Saravanan,
• Min Jang and
• Detlef Bahnemann

Beilstein J. Nanotechnol. 2018, 9, 628–648, doi:10.3762/bjnano.9.59

• immediate plasmonic photocatalysis compared to other plasmonic metals because they are more chemically resistant and stable to standard atmosphere [170]. Under LED excitation at 530 nm in the presence of air or oxygen, Au NPs could promote the oxidation reaction of 9- anthraldehyde to form anthraquinone as

Effects of electronic coupling and electrostatic potential on charge transport in carbon-based molecular electronic junctions

• Richard L. McCreery

Beilstein J. Nanotechnol. 2016, 7, 32–46, doi:10.3762/bjnano.7.4

• lengths from 0.2 to 5 nm. B) same data as panel A on a log scale. BTB = bis(thienyl)benzene, AN = 2-anthracene, AB = azobenzene, ethene = trans-oligoethenylenes, ethyne = oligoethynylenes, AQ = anthraquinone. A) Isolated AB and G9 molecules showing the calculated HOMO and LUMO energies relative to the

An MCBJ case study: The influence of π-conjugation on the single-molecule conductance at a solid/liquid interface

• Wenjing Hong,
• Hennie Valkenier,
• Gábor Mészáros,
• David Zsolt Manrique,
• Artem Mishchenko,
• Alexander Putz,
• Pavel Moreno García,
• Colin J. Lambert,
• Jan C. Hummelen and
• Thomas Wandlowski

Beilstein J. Nanotechnol. 2011, 2, 699–713, doi:10.3762/bjnano.2.76

• down to 10 fA. We report single-molecule conductance measurements of an anthracene-based linearly conjugated molecule (AC), of an anthraquinone-based cross-conjugated molecule (AQ), and of a dihydroanthracene-based molecule (AH) with a broken conjugation. The quantitative analysis of complementary

• current–distance and current–voltage measurements revealed details of the influence of π-conjugation on the single-molecule conductance. Keywords: anthraquinone; π-conjugation; mechanically controlled break junction; single-molecule conductance; Introduction Molecular electronics has expanded

• conductance of single-molecule junctions of oligophenylene ethynylene (OPE)-type molecules contacted to gold leads. We have chosen three rigid dithiolated molecular wires with different conjugation patterns: An anthracene-based linearly conjugated wire (AC), an anthraquinone-based cross-conjugated wire (AQ