2026-05-05T10:23:10Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/460992021-11-04T09:05:15Zcom_10324_1186com_10324_931com_10324_894com_10324_28542com_10324_952col_10324_1404col_10324_28543

Toledo Pérez, Alberto Salamanca Verdugo, Vanesa Pérez Moro, Teresa Albéniz Jiménez, Ana Carmen 2021-04-08T17:23:08Z 2021-04-08T17:23:08Z 2021 Organometallics 2021, 40, 38-47 0276-7333 http://uvadoc.uva.es/handle/10324/46099 10.1021/acs.organomet.0c00675 38 1 47 Organometallics 40 1520-6041 Producción Científica The transmetalation of acyclic monoamino and alkoxo carbenes from tungsten to group 11 metals has been studied for all three metals by analyzing the new metal carbenes formed and also their decomposition products in solution. The ease of transmetalation follows the trend: Au > Cu > Ag and the gold carbenes can be isolated, a copper carbene could be detected but we found no experi- mental evidence of the formation of any silver carbene. The electrophilic character of copper and gold carbenes is supported by the identity of the products formed upon hydrolysis of the carbenes involved. Silver shows a distinct behavior and the presence of Ag+ ions in an ace- tonitrile solution of a tungsten aminocarbene leads to the formal protonation of the carbene fragment to give an iminium salt. This outcome, a seemingly nucleophillic behavior, is unexpected for group 11 carbenes but DFT calculations show that tive cationic silver carbene is energetically accessible. MINECO (SGPI, grant CTQ2016-80913-P) MINECO BES-2014- 067770 MICINN-AEI Grant PID2019- 111406GB-I00 Junta de Castilla y León (grant VA062G18) application/pdf eng info:eu-repo/semantics/openAccess Química Carbene Gold Copper Silver Transmetalation Hydrolysis 2303 Química Inorgánica Transmetalation of Acyclic Tungsten Carbenes to Coinage Metals: Distinct Behavior of Silver toward Carbene Transfer and Hydrolysis info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion https://pubs.acs.org/doi/abs/10.1021/acs.organomet.0c00675 SI