Ligand‐Unsupported Cuprophilicity in the Preparation of Dodecacopper(I) Complexes and Raman Studies |
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| Authors: | N. V. Satyachand Harisomayajula Bo‐Han Wu Dr. Duan‐Yen Lu Ting‐Shen Kuo Prof. Dr. I‐Chia Chen Prof. Dr. Yi‐Chou Tsai |
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| Affiliation: | 1. Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences and Matters, National Tsing Hua University, Hsinchu, Taiwan;2. Department of Chemistry, National (Taiwan) Normal University, Taipei, Taiwan |
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| Abstract: | Synthesis and characterization of two dodecacopper(I) extended metal atom chains (EMAC) assembled by two hexadentate bis(pyridylamido)amidinate‐supported hexacopper(I) string complexes (monomers) via the ligand‐unsupported cuprophilicity are described. In addition to short unsupported Cu?Cu contacts, two hexacopper fragments in these two dodecacopper EMACs show a bent conformation based on X‐ray crystallography. Compared with their THF‐bound hexacopper(I) monomers and protonated ligands, these ligand‐unsupported cuprophilic interactions are shown to be weak by Raman spectroscopy. DFT calculations suggest the ligand‐unsupported cuprophilicity originate from weak attractive orbital interactions, and the strength is estimated to be 2.4 kcal mol?1. |
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| Keywords: | copper cuprophilicity metal atom chains multi-nitrogen ligand Raman spectroscopy |
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