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However, its coordination chemistry with various metal ions remained unexplored. Herein, we have explored the coordination chemistry of a mesoionic N\u2010heterocyclic phosphinidene (mNHP,\n                    <jats:bold>1<\/jats:bold>\n                    ), stabilized by an abnormal N\u2010heterocyclic carbene (aNHC) with various metals (Cu, Zn, and Sn) to afford trimetallic, bimetallic, and monometallic complexes, respectively. All these complexes were characterized by single\u2010crystal X\u2010ray diffraction studies. We have also explored the catalytic activity of one of these complexes for alkynylation of trifluoromethyl ketones and found that mNHP (\n                    <jats:bold>1<\/jats:bold>\n                    )\u2010bound trimetallic Cu\u2010complex is an excellent catalyst for this reaction with up to 97% isolated yield under low catalyst loading (3 mol%).\n                  <\/jats:p>","DOI":"10.1002\/chem.202502402","type":"journal-article","created":{"date-parts":[[2025,9,25]],"date-time":"2025-09-25T13:08:50Z","timestamp":1758805730000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Coordination Chemistry of Phosphinidene Stabilized by Mesoionic N\u2010heterocyclic Carbene and Catalysis"],"prefix":"10.1002","volume":"31","author":[{"given":"Biplab","family":"Gope","sequence":"first","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata  Mohanpur West Bengal 741246 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nimisha","family":"Gautam","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata  Mohanpur West Bengal 741246 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Satadru","family":"Dutta","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata  Mohanpur West Bengal 741246 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Subir","family":"Maji","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata  Mohanpur West Bengal 741246 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3471-7053","authenticated-orcid":false,"given":"Swadhin K.","family":"Mandal","sequence":"additional","affiliation":[{"name":"Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata  Mohanpur West Bengal 741246 India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,25]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.198702753"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejic.201800459"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.8b00791"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/b11152"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.198007221"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1246\/cl.1997.143"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1039\/A700296C"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201408354"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1039\/C3NJ01416A"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201502208"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.202100482"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.3c02264"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1039\/C4DT03285C"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201703672"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1039\/C5CC05241F"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejic.201500959"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.7b01798"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201905061"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1039\/D1DT03016G"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejoc.202201072"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3DT02690F"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.202004300"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.202101202"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.4c04376"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.5c05832"},{"key":"e_1_2_7_26_1","unstructured":"Deposition Numbers 2456674(for4a) 2456675 (for4b) 2456676 (for2) and 2424906 (for3) Contain the Supplementary Crystallographic Data for This Paper. 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