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Block-shaped crystals of a monoclinic form (\n                    <jats:bold>3<\/jats:bold>\n                    -I, space group\n                    <jats:italic>P<\/jats:italic>\n                    2\n                    <jats:sub>1<\/jats:sub>\n                    \/\n                    <jats:italic>c<\/jats:italic>\n                    ,\n                    <jats:italic>Z<\/jats:italic>\n                    = 8,\n                    <jats:italic>Z<\/jats:italic>\n                    \u2032 = 2) and needle-shaped crystals of a triclinic form (\n                    <jats:bold>3<\/jats:bold>\n                    -II, space group\n                    <jats:italic>P<\/jats:italic>\n                    -1,\n                    <jats:italic>Z<\/jats:italic>\n                    = 4,\n                    <jats:italic>Z<\/jats:italic>\n                    \u2032 = 2) were found to crystallize concomitantly. In both crystal forms, R\n                    <jats:sub>2<\/jats:sub>\n                    <jats:sup>2<\/jats:sup>\n                    (10) dimers assemble through N\u2014H...O=C hydrogen bonds. These dimers are formed from crystallographically unique molecules in\n                    <jats:bold>3<\/jats:bold>\n                    -I, but exhibit crystallographic\n                    <jats:italic>C<\/jats:italic>\n                    <jats:sub>\n                      <jats:italic>i<\/jats:italic>\n                    <\/jats:sub>\n                    symmetry in\n                    <jats:bold>3<\/jats:bold>\n                    -II. Twinning by pseudomerohedry was encountered in the crystals of\n                    <jats:bold>3<\/jats:bold>\n                    -II. The conformations of\n                    <jats:bold>3<\/jats:bold>\n                    in the solid forms\n                    <jats:bold>3<\/jats:bold>\n                    -I and\n                    <jats:bold>3<\/jats:bold>\n                    -II are different from one another but are similar for the unique molecules in each polymorph. Density functional theory (DFT) calculations on the free molecule of\n                    <jats:bold>3<\/jats:bold>\n                    indicate that a nearly planar conformation is preferred.\n                  <\/jats:p>","DOI":"10.1107\/s2053229624006211","type":"journal-article","created":{"date-parts":[[2024,6,28]],"date-time":"2024-06-28T17:19:00Z","timestamp":1719595140000},"page":"375-382","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["3-[(Benzo-1,3-dioxol-5-yl)amino]-4-methoxycyclobut-3-ene-1,2-dione: polymorphism and twinning of a precursor to an antimycobacterial squaramide"],"prefix":"10.1107","volume":"80","author":[{"given":"Paul R.","family":"Palme","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0357-3173","authenticated-orcid":true,"given":"Richard","family":"Goddard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0062-7896","authenticated-orcid":true,"given":"Adrian","family":"Richter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Imming","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3438-4666","authenticated-orcid":true,"given":"R\u00fcdiger W.","family":"Seidel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2024,7,5]]},"reference":[{"key":"vp3038_bb1","doi-asserted-by":"crossref","first-page":"1454","DOI":"10.3390\/microorganisms10071454","volume":"10","author":"Abdelaal","year":"2022","journal-title":"Microorganisms"},{"key":"vp3038_bb2","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1107\/S0108768110012048","volume":"66","author":"Allen","year":"2010","journal-title":"Acta Cryst. 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