Effect of zinc cations on the kinetics of supramolecular assembly and the chirality of porphyrin J-aggregates† †Electronic supplementary information (ESI) available: UV/Vis spectral changes during metallation (SI1) and demetallation (SI2) of TPPS, RLS profiles (SI3), fluorescence emission decay and time resolved and fluorescence anisotropy (SI4), m and n kinetic parameters as a function of Zn(ii) (SI5), ICP-OES analysis experimental conditions (Table SI1), and acquisition parameters for ICP-OES analysis (Table SI2). See DOI: 10.1039/c6sc02686a Click here for additional data file.

Effect of zinc cations on the kinetics of supramolecular assembly and the chirality of porphyrin J-aggregates.

Dilute aqueous solutions of anionic meso-4-sulfonatophenyl-porphyrin (TPPS) extract zinc(ii) ions from glass or quartz surfaces at room temperature and efficiently form the corresponding metal complex (ZnTPPS). The partial or complete formation of ZnTPPS has been probed by UV/Vis spectroscopy and both static and time-resolved fluorescence. The source of zinc(ii) ions has been clearly identified...

Successive light-induced two electron transfers in a Ru–Fe supramolecular assembly: from Ru–Fe(ii)–OH2 to Ru–Fe(iv)–oxo† †Electronic supplementary information (ESI) available: Full description of synthetic methods as well as additional data including NMR analyses, cyclic voltammetry, UV/vis and experimental methods. See DOI: 10.1039/c5sc00024f Click here for additional data file.

Identification of key structural features of the elusive Cu–Aβ complex that generates ROS in Alzheimer’s disease† †Electronic supplementary information (ESI) available: Fluorescence data, UV-vis curves, XANES and EPR data, EPR parameters table, 1H NMR data and a proposed mechanism of O2 reduction. See DOI: 10.1039/c7sc00809k Click here for additional data file.

Homochiral self-assembly of biocoordination polymers: anion-triggered helicity and absolute configuration inversion† †Electronic supplementary information (ESI) available: Preparation and physical characterization data of 1P and 2M, additional structural description, UV-Vis and CD spectra (Fig. S1–S7), crystallographic refinement details for 1P and 2M (Table S1), selected bond distances and angles for 1P and 2M (Tables S2–S5), ESI(+)-MS and ESI(+)-MSMS spectra (Fig. S8–S11 and Schemes S1 and S2) and PXRD (Fig. S12). CCDC 1046609 and 1046610. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc01089f Click here for additional data file. Click here for additional data file.

Two interconnected kernels of reciprocally inhibitory interneurons underlie alternating left-right swim motor pattern generation in the mollusk Melibe leonina.

The central pattern generator (CPG) underlying the rhythmic swimming behavior of the nudibranch Melibe leonina (Mollusca, Gastropoda, Heterobranchia) has been described as a simple half-center oscillator consisting of two reciprocally inhibitory pairs of interneurons called swim interneuron 1 (Si1) and swim interneuron 2 (Si2). In this study, we identified two additional pairs of interneurons t...