625079-84-7

Basic information

• Product Name: [Cu(tris(2-pyridylmethyl)amine)(CO)]B(C₆F₅)4
• CAS NO: 625079-84-7
• Molecular Weight: 1060.97
• Mol File: 625079-84-7.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: [Cu(tris(2-pyridylmethyl)amine)(CO)]B(C₆F₅)4(CAS DataBase Reference)
• NIST Chemistry Reference: [Cu(tris(2-pyridylmethyl)amine)(CO)]B(C₆F₅)4(625079-84-7)
• EPA Substance Registry System: [Cu(tris(2-pyridylmethyl)amine)(CO)]B(C₆F₅)4(625079-84-7)

Safety Data

• Hazardous Substances Data: 625079-84-7(Hazardous Substances Data)

Upstream product

• 425370-02-1 tetrakis(acetonitrile)copper(I) tetrakis(pentafluorophenyl)borate 
• 201230-82-2 carbon monoxide 
• 16858-01-8 tris[(2-pyridylmethyl)amine] 

Relevant articles and documents

Carbon monoxide coordination and reversible photodissociation in copper(I) pyridylalkylamine compounds

Systematic studies of CO coordination and photodissociation have been carried out for a series of copper(I) carbonyl compounds possessing tripodal tetradentate ligands, [CuI(L)(CO)]B(C6F5) 4 (L = Me2N-TMPA (1Me2N), MeO-TMPA (1 MeO), H-TMPA (1H), PMEA (2pmea), PMAP (2 pmap), BQPA (3bqpa). Detailed structural, electrochemical, and infrared characterization has been accomplished. In addition, various experimental techniques were utilized to determine equilibrium binding constants (KCO), association (kCO), and dissociation (k -CO) rate constants, as well as the thermodynamic (ΔH ○, ΔS○) and activation parameters (ΔH?, ΔS?) that regulate these processes. With increased ligand-electron-donating ability, greater π back-bonding results in stronger Cu-CO bonds, leading to KCO values on the order 1 Me2N-CO > 1MeO-CO > 1H-CO. With systematic synthetic expansion of the five-membered chelate rings like 1 R to six-membered chelate rings like 2R, the stability of the CO adduct decreases, 1H-CO > 2pmea-CO > 2 pmap-CO. The CO-binding properties of 3bqpa did not follow trends observed for the other compounds, presumably because of its bulkier ligand framework. Through solid- and solution-state analyses, we concluded that the photolabile carbonyl species in solution possess a tridentate coordination mode, forming strictly five-membered chelate rings to the copper ion with one dangling arm of the tripodal ligand. Carbon monoxide reversibly photodissociated from complexes 1Me2N-CO, 1HeO-CO, 1H-CO, and 3bqpa-CO in coordinating (CH3CN) and weakly coordinating (THF) solvent but not from 2pmea-CO and 2pmap-CO. Comparisons to O2-binding data available for these copper complexes as well as to small molecule (O2, CO, NO) reactions with hemes and copper proteins are discussed.