Ligand‐Unsupported Cuprophilicity in the Preparation of Dodecacopper(I) Complexes and Raman Studies.

Autor:	Harisomayajula, N. V. Satyachand, Wu, Bo‐Han, Lu, Duan‐Yen, Kuo, Ting‐Shen, Chen, I‐Chia, Tsai, Yi‐Chou
Předmět:	COPPER compounds METAL complexes LIGANDS (Chemistry) MONOMERS X-ray crystallography DENSITY functional theory
Zdroj:	Angewandte Chemie; 7/26/2018, Vol. 130 Issue 31, p10073-10077, 5p
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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