{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Miao Z"],"funding":["H2020 Marie Sklodowska-Curie Actions","University of Southern California","Division of Materials Research"],"pagination":["8331-8338"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9614958"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["22(20)"],"pubmed_abstract":["Relationships between chemical structure and conductivity in ordered polymers (OPs) are difficult to probe using bulk samples. We propose that conductance measurements of appropriate molecular-scale models can reveal trends in electronic coupling(s) between repeat units that may help inform OP design. Here, we apply the scanning tunneling microscope-based break-junction (STM-BJ) method to study transport through single-molecules comprising OP-relevant imine, imidazole, diazaborole, and boronate ester dynamic covalent chemical bridges. Notably, solution-stable boron-based compounds dissociate <i>in situ</i> unless measured under a rigorously inert glovebox atmosphere. We find that junction conductance negatively correlates with the electronegativity difference between bridge atoms, and corr"],"journal":["Nano letters"],"pubmed_title":["Charge Transport Across Dynamic Covalent Chemical Bridges."],"pmcid":["PMC9614958"],"funding_grant_id":["DMR-2044552","898657"],"pubmed_authors":["Parr JM","Inkpen MS","Czyszczon-Burton TM","Rotthowe N","Liu ZF","Quainoo T","Miao Z"],"additional_accession":[]},"is_claimable":false,"name":"Charge Transport Across Dynamic Covalent Chemical Bridges.","description":"Relationships between chemical structure and conductivity in ordered polymers (OPs) are difficult to probe using bulk samples. We propose that conductance measurements of appropriate molecular-scale models can reveal trends in electronic coupling(s) between repeat units that may help inform OP design. Here, we apply the scanning tunneling microscope-based break-junction (STM-BJ) method to study transport through single-molecules comprising OP-relevant imine, imidazole, diazaborole, and boronate ester dynamic covalent chemical bridges. Notably, solution-stable boron-based compounds dissociate <i>in situ</i> unless measured under a rigorously inert glovebox atmosphere. We find that junction conductance negatively correlates with the electronegativity difference between bridge atoms, and corr","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Oct","modification":"2025-04-04T09:42:07.613Z","creation":"2025-04-04T09:42:07.613Z"},"accession":"S-EPMC9614958","cross_references":{"pubmed":["36215246"],"doi":["10.1021/acs.nanolett.2c03288"]}}