Synthesis, structures, and spectroscopic properties of copper(I) complexes bearing 7-acetamido-4-methyl-1,8-naphthyridin-2-carbaldehyde azine and 1,2-bis(diphenylphosphino)ethane ligands

• Authors: Shao-Ming Chi , Yu-Fei Wang , Xin Gan , De-Hui Wang , Wen-Fu Fu
• Languages of publication: EN

Abstracts

EN

A new ligand napaa (napaa = 7-acetamido-4-methyl-1,8-naphthyridin-2-carbaldehyde azine) and its two dinuclear copper(I) complexes, Cu2(napaa)(dppe)2(ClO4)2 (1) and Cu2(napaa)(PPh3)4(BF4)2 (2) (dppe = 1,2-bis(diphenylphosphino)ethane) and PPh3 = triphenylphosphine) were synthesized and characterized, and the structure of 1 was determined by X-ray crystal analysis. Each copper atom in 1 has a distorted tetrahedral geometry in which the metal center is associated to napaa and dppe ligands displaying chelating coordination modes and the naphthyridine rings of napaa are almost coplanar. The two complexes exhibit similar electronic absorption spectra with λmax at about 366 nm, which can be tentatively assigned to metal-to-ligand charge-transfer (MLCT) transition. The assignment was further supported by density functional theory (DFT) calculations. [...]

Keywords

EN

Copper(I) complex; Phosphine ligand; Napaa; Crystal structure; Photophysical properties

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 4
• Pages: 923-928

Dates

published

1 - 12 - 2009

online

6 - 10 - 2009

Contributors

author

Shao-Ming Chi

• Technical Institute of Physics and Chemistry, Graduate University of Chinese Academy of Sciences, Beijing, 100190, P.R China

author

Yu-Fei Wang

• College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, P.R China

author

Xin Gan

• College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, P.R China

author

De-Hui Wang

• College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, P.R China

author

Wen-Fu Fu

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Identifiers

DOI

10.2478/s11532-009-0087-y