Interaction of N -nitrosamines with binuclear copper complexes for luminescent detection.

Autor: Feng H; Institute for Soldier Nanotechnologies and Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA. tswager@mit.edu., Luo SL; Institute for Soldier Nanotechnologies and Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA. tswager@mit.edu., Croy RG; Department of Chemistry, Department of Biological Engineering and Center for Environmental Health Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA., Essigmann JM; Department of Chemistry, Department of Biological Engineering and Center for Environmental Health Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA., Swager TM; Institute for Soldier Nanotechnologies and Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA. tswager@mit.edu.
Jazyk: angličtina
Zdroj: Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2023 Mar 07; Vol. 52 (10), pp. 3219-3233. Date of Electronic Publication: 2023 Mar 07.
DOI: 10.1039/d2dt03848j
Abstrakt: Cu(I) from tetrakis(acetonitrile)copper(I) hexafluorophosphate ([Cu(MeCN) 4 ]PF 6 ) was complexed with five structurally related phosphines containing N-heterocycles. The interactions between the resulting complexes and some N -nitrosamines were studied using X-ray crystallography as well as emission spectroscopy. Upon complexation, three phosphine ligands bridge two Cu(I) centers to give paddlewheel type structures that displayed a range of emission wavelengths spanning the visible region. N -Nitrosodimethylamine (NDMA) was shown to coordinate to one of the two copper centers in some of the paddlewheel complexes in the solid state and this interaction also quenches their emissions in solution. The influence of the weakly coordinating anion on crystal and spectroscopic properties of one of the paddlewheel complexes was also examined using tetrakis(acetonitrile)copper(I) perchlorate ([Cu(MeCN) 4 ]ClO 4 ) as an alternative Cu(I) source. Similarly, copper(II) perchlorate hexahydrate (Cu(ClO 4 ) 2 ·6H 2 O) was used for complexation to observe the impact of metal oxidation state on the two aforementioned properties. Lastly, the spectroscopic properties of the complex between Ph 2 P(1-Isoquinoline) and Cu(I) was shown to exhibit solvent dependence when the counterion is ClO 4 - . These Cu(I) complexes are bench stable solids and may be useful materials for developing a fluorescence based detection method for N -nitrosamines.
Databáze: MEDLINE
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