{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T07:41:53Z","timestamp":1768635713217,"version":"3.49.0"},"reference-count":28,"publisher":"International Union of Crystallography (IUCr)","issue":"11","license":[{"start":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T00:00:00Z","timestamp":1696896000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T00:00:00Z","timestamp":1696896000000},"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":[[2023,9,27]]},"published-print":{"date-parts":[[2023,11,1]]},"abstract":"<jats:p>In bromido(pyrrolidine-\u03ba<jats:italic>N<\/jats:italic>)gold(I) bis(pyrrolidine-\u03ba<jats:italic>N<\/jats:italic>)gold(I) bromide, [AuBr(pyr)]\u00b7[Au(pyr)<jats:sub>2<\/jats:sub>]Br (pyr = pyrrolidine, C<jats:sub>4<\/jats:sub>H<jats:sub>9<\/jats:sub>N), <jats:bold>2<\/jats:bold>, alternating [AuBr(pyr)] molecules and [Au(pyr)<jats:sub>2<\/jats:sub>]<jats:sup>+<\/jats:sup> cations are connected by aurophilic contacts to form infinite chains of residues parallel to the <jats:italic>b<\/jats:italic> axis. The chains are cross-linked by three N\u2014H...Br<jats:sup>\u2212<\/jats:sup> hydrogen bonds and an Au...Br contact to form a layer structure parallel to the <jats:italic>ab<\/jats:italic> plane. Trichlorido(piperidine-\u03ba<jats:italic>N<\/jats:italic>)gold(III), [AuCl<jats:sub>3<\/jats:sub>(pip)] (pip = piperidine, C<jats:sub>5<\/jats:sub>H<jats:sub>11<\/jats:sub>N), <jats:bold>3<\/jats:bold>, consists of molecules with the expected square-planar coordination at the gold atom, which are connected by an N\u2014H...Cl hydrogen bond and an Au...Cl contact to form a layer structure parallel to the <jats:italic>ac<\/jats:italic> plane. The structures of bis(piperidinium) tetrachloridoaurate(III) chloride, (pipH)<jats:sub>2<\/jats:sub>[AuCl<jats:sub>4<\/jats:sub>]Cl, <jats:bold>4<\/jats:bold>, and bis(pyrrolidinium) tetrabromidoaurate(III) bromide, (pyrH)<jats:sub>2<\/jats:sub>[AuBr<jats:sub>4<\/jats:sub>]Br, <jats:bold>6<\/jats:bold>, are closely related but not isotypic. Compound <jats:bold>6<\/jats:bold> crystallizes in space group <jats:italic>Ibam<\/jats:italic>; the Au and two Br atoms of the anion lie in the mirror plane <jats:italic>x<\/jats:italic>, <jats:italic>y<\/jats:italic>, 0, whereas the bromide ions occupy special positions 0, 0.5, 0 and 0, 0.5, 0.25, with site symmetry 2\/<jats:italic>m<\/jats:italic>. The NH<jats:sub>2<\/jats:sub> group forms a hydrogen bond to one bromide ion, and also a three-centre hydrogen bond to the other bromide atom and to a metal-bonded Br atom. The packing involves chains of hydrogen-bonded pyrrolidinium and bromide ions parallel to the <jats:italic>c<\/jats:italic> axis, combined with a layer structure of [AuBr<jats:sub>4<\/jats:sub>]<jats:sup>\u2212<\/jats:sup> and bromide anions, parallel to the <jats:italic>ab<\/jats:italic> plane and involving Au...Br and Br...Br contacts. Compound <jats:bold>4<\/jats:bold>, however, crystallizes pseudosymmetrically in space group <jats:italic>Iba<\/jats:italic>2; two chlorine atoms of the anion lie on the twofold axis 0.5, 0.5, <jats:italic>z<\/jats:italic>, and there are two independent cations. The packing is closely similar to that of <jats:bold>6<\/jats:bold>, but there are no N\u2014H...Cl hydrogen bonds to metal-bonded chlorines. The contact distances Au...Cl are appreciably longer than their Au...Br counterparts in <jats:bold>6<\/jats:bold>, whereas the Cl...Cl contact is much shorter than Br...Br in <jats:bold>6<\/jats:bold>. Tribromido(piperidine-\u03ba<jats:italic>N<\/jats:italic>)gold(III) crystallizes as its dichloromethane solvate, [AuBr<jats:sub>3<\/jats:sub>(pip)]\u00b7CH<jats:sub>2<\/jats:sub>Cl<jats:sub>2<\/jats:sub>, <jats:bold>7<\/jats:bold>. It too displays a square-planar coordination at the gold atom. The packing involves hydrogen bonds N\u2014H...Br, stacking of neighbouring AuBr<jats:sub>3<\/jats:sub> units by Au...Br contacts, and a short Br...Br contact; these combine to form a layer structure parallel to the <jats:italic>ac<\/jats:italic> plane.<\/jats:p>","DOI":"10.1107\/s205698902300854x","type":"journal-article","created":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T07:39:53Z","timestamp":1696923593000},"page":"1017-1027","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":13,"title":["Crystal structures of five halido gold complexes involving piperidine or pyrrolidine as ligands or (protonated) as cations"],"prefix":"10.1107","volume":"79","author":[{"given":"Cindy","family":"D\u00f6ring","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter G.","family":"Jones","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2023,10,10]]},"reference":[{"key":"yz2040_bb1","unstructured":"Agilent (2014). 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