{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T12:41:15Z","timestamp":1791463275255,"version":"4.3.4"},"reference-count":52,"publisher":"Wiley","issue":"44","license":[{"start":{"date-parts":[[2019,9,18]],"date-time":"2019-09-18T00:00:00Z","timestamp":1568764800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2019,10,28]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Preference for the binding mode of the CN<jats:sup>\u2212<\/jats:sup> ligand to Mg (Mg\u2212CN vs. Mg\u2212NC) is investigated. A monomeric Mg complex with a terminal CN ligand was prepared using the dipyrromethene ligand <jats:sup>Mes<\/jats:sup>DPM which successfully blocks dimerization. While reaction of (<jats:sup>Mes<\/jats:sup>DPM)MgN(SiMe<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub> with Me<jats:sub>3<\/jats:sub>SiCN gave the coordination complex (<jats:sup>Mes<\/jats:sup>DPM)MgN(SiMe<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>\u22c5NCSiMe<jats:sub>3<\/jats:sub>, reaction with (<jats:sup>Mes<\/jats:sup>DPM)Mg(<jats:italic>n<\/jats:italic>Bu) led to (<jats:sup>Mes<\/jats:sup>DPM)MgNC\u22c5(THF)<jats:sub>2<\/jats:sub>. A Mg\u2212NC\/Mg\u2212CN ratio of \u224895:5 was established by crystal\u2010structure determination and DFT calculations. IR studies show absorbances for CN stretching at 2085\u2005cm<jats:sup>\u22121<\/jats:sup> (Mg\u2212NC) and 2162\u2005cm<jats:sup>\u22121<\/jats:sup> (Mg\u2212CN) as confirmed by <jats:sup>13<\/jats:sup>C labeling. In solution and in the solid state, the CN ligand rotates within the pocket. The calculated isomerization barrier is only 12.0\u2005kcal\u2009mol<jats:sup>\u22121<\/jats:sup> and the <jats:sup>13<\/jats:sup>C\u2005NMR signal for CN decoalesces at \u221285\u2009\u00b0C (Mg\u2212NC: 175.9\u2005ppm, Mg\u2212CN: 144.3\u2005ppm). Experiment and theory both indicate that Mg complexes with the CN<jats:sup>\u2212<\/jats:sup> ligand should not be named cyanides but are more properly defined as isocyanides.<\/jats:p>","DOI":"10.1002\/anie.201909511","type":"journal-article","created":{"date-parts":[[2019,8,28]],"date-time":"2019-08-28T21:52:13Z","timestamp":1567029133000},"page":"15736-15741","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Magnesium Cyanide or Isocyanide?"],"prefix":"10.1002","volume":"58","author":[{"given":"Gerd","family":"Ballmann","sequence":"first","affiliation":[{"name":"Inorganic and Organometallic Chemistry Universit\u00e4t Erlangen-N\u00fcrnberg  Egerlandstrasse 1 91058 Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Holger","family":"Elsen","sequence":"additional","affiliation":[{"name":"Inorganic and Organometallic Chemistry Universit\u00e4t Erlangen-N\u00fcrnberg  Egerlandstrasse 1 91058 Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3997-1440","authenticated-orcid":false,"given":"Sjoerd","family":"Harder","sequence":"additional","affiliation":[{"name":"Inorganic and Organometallic Chemistry Universit\u00e4t Erlangen-N\u00fcrnberg  Egerlandstrasse 1 91058 Erlangen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,9,18]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/9780470166468.ch4"},{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1080\/00958970512331327401"},{"key":"e_1_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcc.540070509"},{"key":"e_1_2_2_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic034120u"},{"key":"e_1_2_2_5_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja5044352"},{"key":"e_1_2_2_6_1","first-page":"1","volume-title":"Ullmann's Encyclopedia of Industrial Chemistry","author":"Gail E.","year":"2004"},{"key":"e_1_2_2_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/hlca.19220050311"},{"key":"e_1_2_2_8_1","unstructured":"A. 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