Polymorphic self-assembly of pyrazine-based tectons at the solution–solid interface

• Achintya Jana,
• Puneet Mishra and
• Neeladri Das

Beilstein J. Nanotechnol. 2019, 10, 494–499, doi:10.3762/bjnano.10.50

• ); organic molecules; pyrazine; pyridines; scanning tunneling microscopy; self-assembly; Introduction Molecular materials are attracting considerable attention for the fabrication of next-generation functional devices owing to their high density and low power requirements. Several recent studies have

Rigid multipodal platforms for metal surfaces

• Michal Valášek,
• Marcin Lindner and
• Marcel Mayor

Beilstein J. Nanotechnol. 2016, 7, 374–405, doi:10.3762/bjnano.7.34

• -defined spatial arrangement of the tailor-made functional molecules on a solid surface is of paramount importance in the design of single-molecule devices. So far, many anchoring groups such as thiols (–SH) [26][27][28][29], amines (–NH2) [15][26][30], phosphines [31], pyridines [9][32][33][34][35

• revealed that the π orbitals of the pyridines contributed to the physisorption of the tripodal platform on gold. Measurements of single-molecule conductance were successfully carried out using modified STM techniques for single-molecule junctions that consisted of the tripodal anchors and a diphenyl

Spectroscopic mapping and selective electronic tuning of molecular orbitals in phosphorescent organometallic complexes – a new strategy for OLED materials

• Pascal R. Ewen,
• Jan Sanning,
• Tobias Koch,
• Nikos L. Doltsinis,
• Cristian A. Strassert and
• Daniel Wegner

Beilstein J. Nanotechnol. 2014, 5, 2248–2258, doi:10.3762/bjnano.5.234

• dominant at both pyridine rings while the triazole rings are low in intensity. Between −2.8 V and −1.8 V, the intensity distribution is reversed, i.e., triazoles now appear bright while all pyridines are dim. At positive bias voltages the triazole groups and the AL have no or weak intensities in all dI/dV

• range. At negative sample bias of −1.30 V (Figure 7e) we observed waisted features at both tert-butyl groups and the Pt position whereas the pyridines and the amyl group are very low in intensity. The dI/dV signal at −1.55 V (Figure 7f) is concentrated at the left- and right-hand side of the TL while we

Continuous parallel ESI-MS analysis of reactions carried out in a bespoke 3D printed device

• Jennifer S. Mathieson,
• Mali H. Rosnes,
• Victor Sans,
• Philip J. Kitson and
• Leroy Cronin

Beilstein J. Nanotechnol. 2013, 4, 285–291, doi:10.3762/bjnano.4.31

• [Ni(C24H24N6)(NO3)]+ (2). An axial tetradentate site (created from the N atoms of the axial pyridines and the associated imines) and an equatorial bidentate site (created from the two N atoms of the trans ttop arm) are formed in the favoured conformation, with the tetradentate site always being filled

Septipyridines as conformationally controlled substitutes for inaccessible bis(terpyridine)-derived oligopyridines in two-dimensional self-assembly

• Daniel Caterbow,
• Daniela Künzel,
• Michael G. Mavros,
• Axel Groß,
• Katharina Landfester and
• Ulrich Ziener

Beilstein J. Nanotechnol. 2011, 2, 405–415, doi:10.3762/bjnano.2.46

• no charge accumulation. While the molecules are very similar, a closer look at the frontier orbitals reveals key differences. In both isomers, the HOMO and LUMO are mainly localized on the backbone pyridine and the pyridines directly connected to it. In the 3,3'-PhSpPy (15) molecule, the HOMO extends

• to the backbone phenyl group, whereas in 3,3'-BTP (3) one of the peripheral pyridyl groups contributes to the HOMO. Only for 3,3'-BTP (15) an extension of the LUMO to the peripheral pyridines was observed. The HOMO level is at an energy of −24.31 kJ mol−1 for 3,3'-BTP (3) and −23.83 kJ mol−1 for 3,3

Recrystallization of tubules from natural lotus (Nelumbo nucifera) wax on a Au(111) surface

• Sujit Kumar Dora and
• Klaus Wandelt

Beilstein J. Nanotechnol. 2011, 2, 261–267, doi:10.3762/bjnano.2.30

• and is a well known substrate for the study of self-assembly of a number of different organic molecules, e.g., long chain alkanes [12][13], both aliphatic and aromatic thiols [14][15][16], substituted porphyrins [17][18], substituted pyridines [19], 1-nitronapthalene [20], saccharin [21], substituted