{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T06:18:08Z","timestamp":1788329888315,"version":"build-2803163510"},"reference-count":18,"publisher":"International Union of Crystallography (IUCr)","issue":"6","license":[{"start":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T00:00:00Z","timestamp":1778544000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T00:00:00Z","timestamp":1778544000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr E Cryst Commun","Acta Cryst E","Acta Cryst Sect E","Acta Crystallogr E","Acta Crystallogr Sect E","Acta Cryst E Cryst Commun","Acta Cryst Sect E Cryst Commun"],"accepted":{"date-parts":[[2026,5,6]]},"published-print":{"date-parts":[[2026,6,1]]},"abstract":"<jats:p>\n                    Two transition-metal complexes,\n                    <jats:italic>rac<\/jats:italic>\n                    -dibromido[1-(dimethylaminomethyl)-2-(pyrrolidin-1-ylmethyl)ferrocene]zinc(II), [FeZnBr\n                    <jats:sub>2<\/jats:sub>\n                    (C\n                    <jats:sub>5<\/jats:sub>\n                    H\n                    <jats:sub>5<\/jats:sub>\n                    )(C\n                    <jats:sub>13<\/jats:sub>\n                    H\n                    <jats:sub>22<\/jats:sub>\n                    N\n                    <jats:sub>2<\/jats:sub>\n                    )] (\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>1<\/jats:bold>\n                    ), and\n                    <jats:italic>rac<\/jats:italic>\n                    -dibromido[1-(dimethylaminomethyl)-2-(pyrrolidin-1-ylmethyl)ferrocene]cadmium(II), [FeCdBr\n                    <jats:sub>2<\/jats:sub>\n                    (C\n                    <jats:sub>5<\/jats:sub>\n                    H\n                    <jats:sub>5<\/jats:sub>\n                    )(C\n                    <jats:sub>13<\/jats:sub>\n                    H\n                    <jats:sub>22<\/jats:sub>\n                    N\n                    <jats:sub>2<\/jats:sub>\n                    )] (\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>2<\/jats:bold>\n                    ), crystallize in the form of yellow blocks and were characterized by single-crystal X-ray diffraction. They were synthesized using\n                    <jats:italic>rac<\/jats:italic>\n                    -1-(dimethylaminomethyl)-2-(pyrrolidin-1-ylmethyl)ferrocene (\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>3<\/jats:bold>\n                    ) as starting material, which is characterized here for the first time. Both, the zinc center in complex\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>1<\/jats:bold>\n                    and the cadmium center in complex\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>2<\/jats:bold>\n                    exhibit a tetrahedral coordination geometry. Nevertheless, there are some differences in terms of the bond lengths as well as the bond angles. Furthermore, not only the space groups,\n                    <jats:italic>P<\/jats:italic>\n                    2\n                    <jats:sub>1<\/jats:sub>\n                    \/\n                    <jats:italic>n<\/jats:italic>\n                    for\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>1<\/jats:bold>\n                    and\n                    <jats:italic>P<\/jats:italic>\n                    2\n                    <jats:sub>1<\/jats:sub>\n                    2\n                    <jats:sub>1<\/jats:sub>\n                    2\n                    <jats:sub>1<\/jats:sub>\n                    for\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>2<\/jats:bold>\n                    , but also the crystal packings differ from each other, which can be seen in different configurations of the pyrrolidine substituents. To investigate the intermolecular interactions leading to these structural differences, Hirshfeld surface analyses were performed. They showed that H...H interactions make the largest contribution to the crystal packing in both structures, with 69.0% and 66.6% for\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>1<\/jats:bold>\n                    and\n                    <jats:italic>rac<\/jats:italic>\n                    -\n                    <jats:bold>2<\/jats:bold>\n                    , respectively.\n                  <\/jats:p>","DOI":"10.1107\/s2056989026004688","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T05:51:02Z","timestamp":1778133062000},"page":"600-605","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Crystal structure and Hirshfeld surface analysis of 1-(dimethylaminomethyl)-2-(pyrrolidin-1-ylmethyl)ferrocene complexes with zinc(II) bromide and cadmium(II) bromide"],"prefix":"10.1107","volume":"82","author":[{"given":"Beata","family":"Moritz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tristan","family":"Mairath","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4787-2135","authenticated-orcid":true,"given":"Carsten","family":"Strohmann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,5,12]]},"reference":[{"key":"tx2110_bb1","doi-asserted-by":"crossref","first-page":"42290","DOI":"10.1021\/acsomega.3c04262","volume":"8","author":"Aliyeva","year":"2023","journal-title":"ACS Omega"},{"key":"tx2110_bb2","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1107\/S2053273314022207","volume":"71","author":"Bourhis","year":"2015","journal-title":"Acta Cryst. 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