Johann Jakob Bodmer und Johann Jakob Breitinger im Netzwerk der europäischen Aufklärung

Zürich im 18. Jahrhundert: Bodmer und Breitinger als Begründer einer neuen intellektuellen Metropole. Ab den 1740er Jahren zog Zürich eine Vielzahl junger deutscher Schriftsteller an. Durch die beiden Hochschullehrer, Schriftsteller, kosmopolitischen Denker und Gesellschaftskritiker Bodmer und Breitinger wurde die Stadt zu einem »Limmat-Athen«. Viele Schriftsteller, die mit dem ästhetischen Klassizismus und dem höfischen Absolutismus unzufrieden waren, blickten hoffnungsvoll nach Zürich und auf das poetologische Programm der beiden Gelehrten: Breitinger wollte die Phantasie als poetische Produktivkraft entfesseln, Bodmer provozierte mit seinem Anspruch, mit Homer und Mose, Milton und Pope, Tasso und Cervantes in einen produktiven Wettstreit zu treten, die Kritik Gottscheds.

Single-Molecule Conductance of Functionalized Oligoynes: Length Dependence and Junction Evolution

We report a combined experimental and theoretical investigation of the length dependence and anchor group dependence of the electrical conductance of a series of oligoyne molecular wires in single-molecule junctions with gold contacts. Experimentally, we focus on the synthesis and properties of diaryloligoynes with n = 1, 2, and 4 triple bonds and the anchor dihydrobenzo[b]thiophene (BT). For comparison, we also explored the aurophilic anchor group cyano (CN), amino (NH2), thiol (SH), and 4-pyridyl (PY). Scanning tunneling microscopy break junction (STM-BJ) and mechanically controllable break junction (MCBJ) techniques are employed to investigate single-molecule conductance characteristics. The BT moiety is superior as compared to traditional anchoring groups investigated so far. BT-terminated oligoynes display a 100% probability of junction formation and possess conductance values which are the highest of the oligoynes studied and, moreover, are higher than other conjugated molecular wires of similar length. Density functional theory (DFT)-based calculations are reported for oligoynes with n = 1−4 triple bonds. Complete conductance traces and conductance distributions are computed for each family of molecules. The sliding of the anchor groups leads to oscillations in both the electrical conductance and the binding energies of the studied molecular wires. In agreement with experimental results, BT-terminated oligoynes are predicted to have a high electrical conductance. The experimental attenuation constants βH range between 1.7 nm−1 (CN) and 3.2 nm−1 (SH) and show the following trend: βH(CN) < βH(NH2) < βH(BT) < βH(PY) ≈ βH(SH). DFT-based calculations yield lower values, which range between 0.4 nm−1 (CN) and 2.2 nm−1 (PY).

Highly-effective gating of single-molecule junctions: an electrochemical approach

We report an electrochemical gating approach with [similar]100% efficiency to tune the conductance of single-molecule 4,4′-bipyridine junctions using scanning-tunnelling-microscopy break junction technique. Density functional theory calculation suggests that electrochemical gating aligns molecular frontier orbitals relative to the electrode Fermi-level, switching the molecule from an off resonance state to “partial” resonance.

Implications for the Discovery of Extraterrestrial Life: A Theological Approach

Recent remarks of Pope Francis spark anew an important discussion: are we alone in the Universe? The article follows traces of the idea of extraterrestrial life throughout philosophy, evaluates the current considerations about the probability of extraterrestrial life and discusses the potential implications for the discovery of such life from a theological point of view. This “thought experiment” covers basic insights on creation, revelation and redemption.

La harpe irlandaise. Les arts dans La Parole errante

La Parole errante, l’œuvre nodale d’Armand Gatti, «œuvre-monde» au sens de F. Moretti, s’inscrit dans l’épique moderne et constitue une épopée, lacunaire et discontinue, de l’art du XXe siècle, tout en évoquant les projets cinématographiques et théâtraux qu’a menés Gatti tout autour de la terre. Dans les deux cas, l’art est vu comme vie. Les évocations des avant-gardes ne reprennent pas le récit qu’elles se sont donné d’elles-mêmes en soulignant leurs ruptures. Inscrites dans une poétique générale de choralité, elles interviennent avec de très nombreuses mentions d’artistes antérieurs au XXe siècle et extérieurs au monde occidental, formant une sorte de chœur où les divers arts se répondent, mais avec des dissonances.