Triptycene-terminated thiolate and selenolate monolayers on Au(111)

• Jinxuan Liu,
• Martin Kind,
• Björn Schüpbach,
• Daniel Käfer,
• Stefanie Winkler,
• Wenhua Zhang,
• Andreas Terfort and
• Christof Wöll

Beilstein J. Nanotechnol. 2017, 8, 892–905, doi:10.3762/bjnano.8.91

• ] thiolates on gold, which exhibit strong π-stacking. More bulky moieties like adamantyl [15][16][17] show noteworthy less attractive intermolecular interactions, which is rather disadvantageous for the formation of well-ordered monolayers. Furthermore, the increased space requirement of the adamantyl moiety

Probing the magnetic superexchange couplings between terminal Cu^II ions in heterotrinuclear bis(oxamidato) type complexes

• Mohammad A. Abdulmalic,
• Saddam Weheabby,
• Francois E. Meva,
• Azar Aliabadi,
• Vladislav Kataev,
• Bernd Büchner,
• Frederik Schleife,
• Berthold Kersting and
• Tobias Rüffer

Beilstein J. Nanotechnol. 2017, 8, 789–800, doi:10.3762/bjnano.8.82

• )(pmdta)2]2+ as not involved in any further intermolecular interactions. As a consequence thereof, the complexes 1–3 possess terminal paramagnetic [Cu(pmdta)]2+ fragments separated by [NiII(opboR2)]2– bridging units representing diamagnetic SNi = 0 states. The magnetic field dependence of the

• analogy, the cationic complex fragments [NiCu2(opboMe2)(pmdta)2]2+ of 2’ and [NiCu2(opboMe2)(pmdta)2]2+ of 3’ are denoted in the following as 2A and 3A. It should be highlighted and emphasized that in the crystal structures of 1’–3’ no unusual short intermolecular interactions were observed and that the

• diffraction studies. These studies revealed that all [Cu2Ni(opboR2)]2+ fragments are not involved in any intermolecular interactions and are thus discrete in the solid state. That made these three complexes especially well-suited to experimentally verify that there are no magnetic superexchange couplings

Photo-ignition process of multiwall carbon nanotubes and ferrocene by continuous wave Xe lamp illumination

• Paolo Visconti,
• Patrizio Primiceri,
• Daniele Longo,
• Luciano Strafella,
• Paolo Carlucci,
• Mauro Lomascolo,
• Arianna Cretì and
• Giuseppe Mele

Beilstein J. Nanotechnol. 2017, 8, 134–144, doi:10.3762/bjnano.8.14

• obtained results One of the central aspects in CNT chemistry and physics is their interaction via electron transfer. The intermolecular interactions with electronic charge transfers between nanotubes and ferrocene showed that this composite material can be used for converting solar energy into energy to

Controlled supramolecular structure of guanosine monophosphate in the interlayer space of layered double hydroxide

• Gyeong-Hyeon Gwak,
• Istvan Kocsis,
• Yves-Marie Legrand,
• Mihail Barboiu and
• Jae-Min Oh

Beilstein J. Nanotechnol. 2016, 7, 1928–1935, doi:10.3762/bjnano.7.184

• was three times longer than without clay. Among biological molecules, guanosine derivatives are known to have various supramolecular assembly routes through intermolecular interactions. For instance, telomere in chromosome consists of stacks of guanosine quartets (G4), in which four guanosines are

• )polytetrahydrofuran [10]. These G4 membranes showed potential in Na+/K+ artificial ion channels. Inspired by the above reports claiming that i) intermolecular interactions of biomolecules are strongly affected by the confined geometry of layered clays and that ii) guanosine derivatives form various supramolecular

Correlative infrared nanospectroscopic and nanomechanical imaging of block copolymer microdomains

• Benjamin Pollard and
• Markus B. Raschke

Beilstein J. Nanotechnol. 2016, 7, 605–612, doi:10.3762/bjnano.7.53

• Benjamin Pollard Markus B. Raschke Department of Physics, Department of Chemistry, and JILA, University of Colorado, Boulder, Colorado 80309, USA 10.3762/bjnano.7.53 Abstract Intermolecular interactions and nanoscale phase separation govern the properties of many molecular soft-matter systems

• , hybrid imaging, near-field infrared spectroscopy, scanning probe microscopy; Introduction Functional soft-matter and polymer systems often exhibit novel phenomena due to nanoscale chemical heterogeneity and the resulting intermolecular interactions. Infrared vibrational scattering scanning near-field

• interfacial mixing between microdomains, suggesting a complex interplay between crystallinity, composition, and intermolecular interactions, especially at microdomain interfaces. On the other hand, Figure 5 shows strong negative correlations of resonant s-SNOM phase with adhesion (Figure 5a,b) and dissipation

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

Sub-monolayer film growth of a volatile lanthanide complex on metallic surfaces

• Hironari Isshiki,
• Jinjie Chen,
• Kevin Edelmann and
• Wulf Wulfhekel

Beilstein J. Nanotechnol. 2015, 6, 2412–2416, doi:10.3762/bjnano.6.248

• nevertheless be represented by using vector s and t (s’ and t’) for the lattice vector of Cu(111) (Ag(111)) as follows: for films on Cu(111) and, for films on Ag(111). The complicated structure of the molecular films is the result of the competition between intermolecular interactions and molecule–substrate

Nanostructured surfaces by supramolecular self-assembly of linear oligosilsesquioxanes with biocompatible side groups

• Maria Nowacka,
• Anna Kowalewska and
• Tomasz Makowski

Beilstein J. Nanotechnol. 2015, 6, 2377–2387, doi:10.3762/bjnano.6.244

• entropy–enthalpy compensation [51][52][53]. Thus, the mechanism of adsorption of LPSQ-COOH/X on mica should be discussed with respect to possible intermolecular interactions between polymer chains and their relations with the substrate. Macromolecules consisting of surface-reactive repeating units can

• can be observed for sample P1 (Figure 7) that binds to the native mica through ionic bonds with the K+ layer, and the rest of the COOH groups involved in the intermolecular interactions form a network of hydrogen bonds arranged mostly in linear (catemeric) structures resulting in a characteristic FTIR

Virtual reality visual feedback for hand-controlled scanning probe microscopy manipulation of single molecules

• Philipp Leinen,
• Matthew F. B. Green,
• Taner Esat,
• Christian Wagner,
• F. Stefan Tautz and
• Ruslan Temirov

Beilstein J. Nanotechnol. 2015, 6, 2148–2153, doi:10.3762/bjnano.6.220

• molecule resides inside an ordered PTCDA monolayer, most of the attempts of pulling it straight up fail [1], because intermolecular interactions in the monolayer hold the molecules together [9]. When the force exerted by the intermolecular bonds overcomes the strength of the tip–molecule bond, the latter

• [1]. Since we expect the intermolecular interactions in the monolayer to play a significant role, the tip trajectories that extract molecules from different intermolecular configurations most likely deviate from each other substantially. Thus, averaging them could produce a trajectory that is not

Enhanced fullerene–Au(111) coupling in (2√3 × 2√3)R30° superstructures with intermolecular interactions

• Michael Paßens,
• Rainer Waser and
• Silvia Karthäuser

Beilstein J. Nanotechnol. 2015, 6, 1421–1431, doi:10.3762/bjnano.6.147

• ° superlattice formed by fullerenes adopting 11 different orientations and it could be shown that intermolecular interactions play a major role in stabilizing this structure [12]. Another interesting fact is that fullerenes with two different apparent heights in STM images, usually referred as “bright” and “dim

• freedom of C60 give rise to a large variety of possible C60–Au(111) superstructures. Remarkably, the rotational orientations of C60 are not random but depend sensitively on the interface and intermolecular interactions. In order to gain more insights into the formation and stability of possible

• , respectively, which should be lifted, if intermolecular interactions or molecule–surface interactions become relevant. However, as reported so far, the electronic configuration of C60 remains largely unperturbed upon adsorption and the charge transfer to C60 on Au(111) is small, which also has been confirmed

Probing fibronectin–antibody interactions using AFM force spectroscopy and lateral force microscopy

• Andrzej J. Kulik,
• Małgorzata Lekka,
• Kyumin Lee,
• Grazyna Pyka-Fościak and
• Wieslaw Nowak

Beilstein J. Nanotechnol. 2015, 6, 1164–1175, doi:10.3762/bjnano.6.118

• gathered using LFM. Our results show that the new calibration method has potential for applications in LFM quantitative investigations of intermolecular interactions. Results Converting torsion into force units The calibration of the force that acts perpendicular to the investigated surface requires the

Electrical characterization of single molecule and Langmuir–Blodgett monomolecular films of a pyridine-terminated oligo(phenylene-ethynylene) derivative

• Henrry M. Osorio,
• Santiago Martín,
• María Carmen López,
• Santiago Marqués-González,
• Simon J. Higgins,
• Richard J. Nichols,
• Paul J. Low and
• Pilar Cea

Beilstein J. Nanotechnol. 2015, 6, 1145–1157, doi:10.3762/bjnano.6.116

• ability to understand and control charge and heat transport phenomena at the molecular scale [10][11][12][13][14][15][16][17][18][19][20][21]. Complementary studies of larger area metal–molecular monolayer–metal junctions play a further crucial role in understanding the effect of intermolecular

• interactions, for example, van der Waals interactions and polarization effects in electronic transport properties [22][23][24]. In addition, planar-sandwiched monolayer structures are more closely aligned with practical electronic applications. Three main techniques have been used to fabricate molecular

Anticancer efficacy of a supramolecular complex of a 2-diethylaminoethyl–dextran–MMA graft copolymer and paclitaxel used as an artificial enzyme

• Yasuhiko Onishi,
• Yuki Eshita,
• Rui-Cheng Ji,
• Masayasu Onishi,
• Takashi Kobayashi,
• Masaaki Mizuno,
• Jun Yoshida and
• Naoji Kubota

Beilstein J. Nanotechnol. 2014, 5, 2293–2307, doi:10.3762/bjnano.5.238

• polymer DDS and a gene or drug shows the possibility that they act as a supramolecular object. The concept of a supramolecule was advocated by Lehn [8] and others, and the use of, for instance, crown ethers or cyclodextrins, as a host to form a host–guest compound by using intermolecular interactions has

Influence of the supramolecular architecture on the magnetic properties of a Dy^III single-molecule magnet: an ab initio investigation

• Julie Jung,
• Olivier Cador,
• Kevin Bernot,
• Fabrice Pointillart,
• Javier Luzon and
• Boris Le Guennic

Beilstein J. Nanotechnol. 2014, 5, 2267–2274, doi:10.3762/bjnano.5.236

• already observed for the Yb parents [Yb(hfac)3(L1)] and [Yb(hfac)3(L2)] [39]. The disagreement for [Yb(hfac)3(L1)] was attributed to intermolecular interactions that seem to play a key role in the magnetic properties of this series of complexes. Moreover, the calculated ground state of Dy1 is almost Ising

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

• exhibits a round feature next to the Pt atom stemming from the pyridine (Figure 2b), C2 features an additional “tail” stemming from the C5H11 alkyl chain (Figure 2d–f). We can evaluate the driving force of self-assembly and gain information about the intermolecular interactions within the first monolayer

Modification of a single-molecule AFM probe with highly defined surface functionality

• Fei Long,
• Bin Cao,
• Ashok Khanal,
• Shiyue Fang and
• Reza Shahbazian-Yassar

Beilstein J. Nanotechnol. 2014, 5, 2122–2128, doi:10.3762/bjnano.5.221

• stretching the molecule from the entropic form to the extended form. Also, intermolecular interactions could be investigated by attaching one molecule to a probe and the other to a substrate. Examples include the unfolding of proteins [8][9], dissociation of receptors from ligands [10][11], and un-zipping

Carbon nano-onions (multi-layer fullerenes): chemistry and applications

• Juergen Bartelmess and
• Silvia Giordani

Beilstein J. Nanotechnol. 2014, 5, 1980–1998, doi:10.3762/bjnano.5.207

• . Analogous to carbon nanotubes, CNOs display poor solubility in both aqueous and organic solvents. This is due to aggregation, promoted by strong intermolecular interactions such as van-der-Waals forces. To overcome this tendency to aggregate, functionalization of the surface of the carbon materials is the

Patterning a hydrogen-bonded molecular monolayer with a hand-controlled scanning probe microscope

• Matthew F. B. Green,
• Taner Esat,
• Christian Wagner,
• Philipp Leinen,
• Alexander Grötsch,
• F. Stefan Tautz and
• Ruslan Temirov

Beilstein J. Nanotechnol. 2014, 5, 1926–1932, doi:10.3762/bjnano.5.203

• intermolecular interactions bind the molecules to each other, holding them tightly within the molecular islands [13]. An attempt to manipulate PTCDA thus faces a conspicuous practical problem: while an isolated molecule that has no neighbours can be contacted and lifted from the surface with the SPM tip in a

Exploring the complex mechanical properties of xanthan scaffolds by AFM-based force spectroscopy

• Hao Liang,
• Guanghong Zeng,
• Yinli Li,
• Shuai Zhang,
• Huiling Zhao,
• Lijun Guo,
• Bo Liu and
• Mingdong Dong

Beilstein J. Nanotechnol. 2014, 5, 365–373, doi:10.3762/bjnano.5.42

• suggests complicated intermolecular interactions among xanthan fibrils. The results provide crucial information to understand the structures and mechanical properties of the xanthan scaffold. Keywords: atomic force microscopy (AFM); force spectroscopy (FS); mechanical properties; xanthan scaffold

• that more than three fibrils were attached, yielding sequential ruptures and intermolecular interactions. Force curves with one peak could be obtained during manipulating all three typical structures. The peak corresponds to a single stretching event. For convenience, this kind of curve is defined as

Large-scale atomistic and quantum-mechanical simulations of a Nafion membrane: Morphology, proton solvation and charge transport

• Pavel V. Komarov,
• Pavel G. Khalatur and
• Alexei R. Khokhlov

Beilstein J. Nanotechnol. 2013, 4, 567–587, doi:10.3762/bjnano.4.65

• hydrophobic phase and various intermolecular interactions. Equally important is the understanding of the molecular basis of electrochemical reactions and related to them degradation processes that occur at all stages of the PEFC operation. Many fundamental issues in these fields can be solved using multiscale

Influence of the solvent on the stability of bis(terpyridine) structures on graphite

• Daniela Künzel and
• Axel Groß

Beilstein J. Nanotechnol. 2013, 4, 269–277, doi:10.3762/bjnano.4.29

• the simulations, the influence of these effects should be negligible. Results and Discussion Validation step 1: liquid densities As a first test case, the densities of liquid water and 1,2,4-trichlorobenzene (TCB) are considered, yielding an indication as to whether the intermolecular interactions

• well also be that the solvent affects the strength of the intermolecular interactions. We have therefore estimated ΔG at 298 K taking the presence of the solvent into account. MD runs with the full surface structures including graphite, BTP and TCB were carried out corresponding to an explicit

• latter simulations. These simulations were done by using the Compass force field, which provided the most reliable results. As a result, the adsorption energies in Table 2 are obtained. These adsorption energies combine the BTP/graphite interaction with intermolecular interactions and solvent effects

Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes

• Thomas Baumgärtel,
• Christian von Borczyskowski and
• Harald Graaf

Beilstein J. Nanotechnol. 2013, 4, 218–226, doi:10.3762/bjnano.4.22

• monolayer-terminated silicon can be divided into three major groups: (A) intermolecular interactions [10][11], (B) electrostatic/ionic interactions [12][13], and (C) covalent bonds [14][15][16][17]. Covalent attachment of molecules is thereby a most favorable method since covalent bonds possess comparable

• caused by a dense packing of the FITC molecules on the oxide structure. Measurements of the excited state lifetime are likely not suitable for the investigation of the intermolecular interactions due to the predominant quenching by the silicon below. Consequently, the most likely reason for the strong

Dipole-driven self-organization of zwitterionic molecules on alkali halide surfaces

• Laurent Nony,
• Franck Bocquet,
• Franck Para,
• Frédéric Chérioux,
• Eric Duverger,
• Frank Palmino,
• Vincent Luzet and
• Christian Loppacher

Beilstein J. Nanotechnol. 2012, 3, 285–293, doi:10.3762/bjnano.3.32

• -organization of MSPS on KCl there are two additional points that must be clarified: First, is the observed Moiré pattern an effect of coincidences between the quadratic lattices of molecules and substrates, and can the molecular lattice be regarded as being incompressible (i.e., the intermolecular interactions

An NC-AFM and KPFM study of the adsorption of a triphenylene derivative on KBr(001)

• Antoine Hinaut,
• Adeline Pujol,
• Florian Chaumeton,
• David Martrou,
• André Gourdon and
• Sébastien Gauthier

Beilstein J. Nanotechnol. 2012, 3, 221–229, doi:10.3762/bjnano.3.25

• of this monolayer (Figure 4) shows that the molecules are mobile at the border of the layer. These observations suggest an adsorption geometry close to the calculated conformation in Figure 9. Indeed, considering the high value of the adsorption energy, one does not expect the lateral intermolecular

• interactions to be strong enough to significantly affect the adsorption conformation of the single molecule. A tentative model of the MLh layer is shown in Figure 10. The unit cell vectors u and v have been chosen on the basis of the experimental values extracted from Figure 7b. They are given in terms of the

Surface functionalization of aluminosilicate nanotubes with organic molecules

• Wei Ma,
• Weng On Yah,
• Hideyuki Otsuka and
• Atsushi Takahara

Beilstein J. Nanotechnol. 2012, 3, 82–100, doi:10.3762/bjnano.3.10

• thiophene/imogolite films compared to solution indicates that additional an intermolecular interaction was present that plays a role in controlling the solid-state optical properties [65]. Fluorescence spectroscopy is a suitable analytical tool for monitoring the intermolecular interactions of terthiophene