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These reactions allow the synthesis of the mononuclear complexes [M(\u03b7<jats:sup>5<\/jats:sup>\u2009:\u2009\u03b7<jats:sup>2<\/jats:sup>\u2010<jats:bold>B<\/jats:bold>)<jats:sub>2<\/jats:sub>][FAl] (M=Ag (<jats:bold>1<\/jats:bold>), Cu (<jats:bold>2<\/jats:bold>)) when a ratio of <jats:bold>B<\/jats:bold>\/M(FAl) 2\u2009:\u20091 is used. Compound <jats:bold>1<\/jats:bold> shows an unusual disorder of the central Ag<jats:sup>I<\/jats:sup> cation between two \u03c0\u2010coordinating <jats:italic>cyclo<\/jats:italic>\u2010As<jats:sub>5<\/jats:sub> ligands, which is absent in <jats:bold>2<\/jats:bold> pointing to a weak interaction of the Ag center towards the cyclo\u2010As<jats:sub>5<\/jats:sub> ligands in <jats:bold>B<\/jats:bold>. When the ratio of <jats:bold>B<\/jats:bold>\/Ag(FAl) is changed to 3\u2009:\u20091 or 1\u2009:\u20091, the respective coordination compounds [Ag(\u03b7<jats:sup>2<\/jats:sup>\u2010<jats:bold>B<\/jats:bold>)<jats:sub>3<\/jats:sub>][FAl] (<jats:bold>3<\/jats:bold>) and [Ag<jats:sub>2<\/jats:sub>(\u03b7<jats:sup>2<\/jats:sup>\u2009:\u2009\u03b7<jats:sup>2<\/jats:sup>\u2010<jats:bold>B<\/jats:bold>)<jats:sub>2<\/jats:sub>][FAl]<jats:sub>2<\/jats:sub> (<jats:bold>4<\/jats:bold>) are accessible. The coordination modes of the <jats:italic>cyclo<\/jats:italic>\u2010As<jats:sub>5<\/jats:sub> units in <jats:bold>1<\/jats:bold>, <jats:bold>3<\/jats:bold> and <jats:bold>4<\/jats:bold> are all different, reflecting the adaptive coordination behavior of <jats:bold>B<\/jats:bold> towards Ag<jats:sup>I<\/jats:sup> ions. The optimized geometries in the gas phase of <jats:bold>1<\/jats:bold>\u2013<jats:bold>4<\/jats:bold> are determined by DFT calculations to support the bonding situation observed in their solid\u2010state structures.<\/jats:p>","DOI":"10.1002\/chem.202101096","type":"journal-article","created":{"date-parts":[[2021,5,14]],"date-time":"2021-05-14T08:59:37Z","timestamp":1620982777000},"page":"9742-9747","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Versatile Coordination of Ag<sup>I<\/sup> and Cu<sup>I<\/sup> Ions towards <i>cyclo<\/i>\u2010As<sub>5<\/sub> Ligands"],"prefix":"10.1002","volume":"27","author":[{"given":"Mehdi Elsayed","family":"Moussa","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Anorganische Chemie Universit\u00e4t Regensburg  93040 Regensburg 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