{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:24:46Z","timestamp":1760239486992,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,11,23]],"date-time":"2020-11-23T00:00:00Z","timestamp":1606089600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Crystals"],"abstract":"<jats:p>Introduction of chirality in the field of molecular conductors has received increasing interest in recent years in the frame of modulation of the crystal packing, and hence conducting properties, with the number of stereogenic centers and absolute configuration, e.g., racemic or enantiopure forms. Here, we describe the preparation by electrocrystallization of chiral radical cation salts, based on the donors methyl-ethylenedithio-tetrathiafulvalene (Me-EDT-TTF) 1 and ethyl-ethylenedithio-tetrathiafulvalene (Et-EDT-TTF) 2 containing one stereogenic center, with the perchlorate anion. Donor 1 provided the series of crystalline materials [(rac)-1]ClO4, [(S)-1]2ClO4 and [(R)-1]2ClO4, while for donor 2 only the 1:1 salts [(rac)-2]ClO4 and [(R)-2]ClO4 could be prepared as suitable single crystals for X-ray analysis. The enantiopure salts of 1 show \u03b2-type packing and metallic conductivity in the high temperature regime, with room temperature conductivity values of 5\u201310 S cm\u22121, whereas compound [(rac)-2]ClO4 is a very poor semiconductor. Tight-binding extended H\u00fcckel band structure calculations support the metallic conductivity of the enantiopure salts of 1 and suggest that small structural changes, possibly induced by thermal contraction or pressure, could lead to a pseudo-elliptic closed Fermi surface, typical for a 2D metal.<\/jats:p>","DOI":"10.3390\/cryst10111069","type":"journal-article","created":{"date-parts":[[2020,11,23]],"date-time":"2020-11-23T11:50:34Z","timestamp":1606132234000},"page":"1069","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Chiral Conducting Me-EDT-TTF and Et-EDT-TTF-Based Radical Cation Salts with the Perchlorate Anion"],"prefix":"10.3390","volume":"10","author":[{"given":"Nabil","family":"Mroweh","sequence":"first","affiliation":[{"name":"MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, CEDEX, 49045 Angers, France"}]},{"given":"Pascale","family":"Auban-Senzier","sequence":"additional","affiliation":[{"name":"Laboratoire de Physique des Solides, Universite\u0301 Paris-Saclay CNRS UMR 8502, B\u00e2t. 510, 91405 Orsay, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2598-7940","authenticated-orcid":false,"given":"Nicolas","family":"Vanthuyne","sequence":"additional","affiliation":[{"name":"CNRS, Centrale Marseille, iSm2, Aix Marseille Universit\u00e9, 13397 Marseille, France"}]},{"given":"Elsa B.","family":"Lopes","sequence":"additional","affiliation":[{"name":"Centro de Ciencias e Tecnologias Nucleares (C<sup>2<\/sup>TN) and Departmento de Engenharia e Ciencias Nucleares (DECN), Instituto Superior T\u00e9cnico (IST), Universidade de Lisboa, E.N. 10, 2695-066 Bobadela LRS, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2222-5641","authenticated-orcid":false,"given":"Manuel","family":"Almeida","sequence":"additional","affiliation":[{"name":"Centro de Ciencias e Tecnologias Nucleares (C<sup>2<\/sup>TN) and Departmento de Engenharia e Ciencias Nucleares (DECN), Instituto Superior T\u00e9cnico (IST), Universidade de Lisboa, E.N. 10, 2695-066 Bobadela LRS, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4663-5226","authenticated-orcid":false,"given":"Enric","family":"Canadell","sequence":"additional","affiliation":[{"name":"Campus de la UAB, Institut de Ci\u00e8ncia de Materials de Barcelona, ICMAB-CSIC, 08193 Bellaterra, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9970-4494","authenticated-orcid":false,"given":"Narcis","family":"Avarvari","sequence":"additional","affiliation":[{"name":"MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, CEDEX, 49045 Angers, France"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"8435","DOI":"10.1021\/acs.chemrev.8b00770","article-title":"Main-Group-Based Electro- and Photoactive Chiral Materials","volume":"119","author":"Pop","year":"2019","journal-title":"Chem. 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