{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:05:59Z","timestamp":1760148359032,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,4,26]],"date-time":"2023-04-26T00:00:00Z","timestamp":1682467200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Research Grants Council of Hong Kong","award":["C6022-20E","SMSEGL-20SC01-D"],"award-info":[{"award-number":["C6022-20E","SMSEGL-20SC01-D"]}]},{"name":"Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)","award":["C6022-20E","SMSEGL-20SC01-D"],"award-info":[{"award-number":["C6022-20E","SMSEGL-20SC01-D"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>The absolute structure of the 3D MOF anhydrous zinc (II) tartrate with space group I222 has been determined for both [Zn(L-TAR)] and [Zn(D-TAR)] by electron diffraction using crystals of sub-micron dimensions. Dynamical refinement gives a strong difference in R factors for the correct and inverted structures. These anhydrous MOFs may be prepared phase pure from mild hydrothermal conditions. Powder X-ray diffraction indicates that isostructural or pseudo-isostructural phases can be similarly prepared for several other M2+ = Mg, Mn, Co, Ni and Cu. I222 is a relatively uncommon space group since it involves intersecting two-fold axes that place constraints on molecular crystals. However, in the case of MOFs the packing is dominated by satisfying the octahedral coordination centers. These MOFs are dense 3D networks with chiral octahedral metal centers that may be classed as \u0394 (for L-TAR) or \u039b (for D-TAR).<\/jats:p>","DOI":"10.3390\/sym15050983","type":"journal-article","created":{"date-parts":[[2023,4,26]],"date-time":"2023-04-26T02:30:52Z","timestamp":1682476252000},"page":"983","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Absolute Structure Determination of Chiral Zinc Tartrate MOFs by 3D Electron Diffraction"],"prefix":"10.3390","volume":"15","author":[{"given":"Christian","family":"Jandl","sequence":"first","affiliation":[{"name":"Eldico Scientific AG, 5234 Villigen, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gunther","family":"Steinfeld","sequence":"additional","affiliation":[{"name":"Eldico Scientific AG, 5234 Villigen, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3970-5596","authenticated-orcid":false,"given":"Keyao","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pokka Ka Chuen","family":"Pang","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chun Lung","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cengan","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Petra","family":"Simoncic","sequence":"additional","affiliation":[{"name":"Eldico Scientific AG, 5234 Villigen, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ian D.","family":"Williams","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"369","DOI":"10.1038\/s41592-019-0395-x","article-title":"The Cryo-EM Method Microcrystal Electron Diffraction (MicroED)","volume":"16","author":"Nannenga","year":"2019","journal-title":"Nat. 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