The [CoN4(OH)(OH2)]2+ (N4 = trpn, cyclen and tren) promoted hydrolysis of the phosphotriester 2,4-dinitrophenyl diethyl phosphate was written by Hay, Robert W.;Govan, Norman. And the article was included in Transition Metal Chemistry (Dordrecht, Netherlands) in 1998.Reference of 7528-78-1 This article mentions the following:
The [CoL(OH2)2]3+ (L = trpn, cyclen and tren) promoted hydrolysis of the phosphotriester 2,4-dinitrophenyl di-Et phosphate to give di-Et phosphate and 2,4-dinitrophenolate was studied in detail over the pH range 3-7.5. The pK values of the various complexes were determined at 25° and I = 0.1 mol dm-3 by potentiometric titration The pH-rate profiles for the reactions are consistent with the hydroxoaqua complex [CoL(OH)(OH2)]2+ being the active species in the hydrolysis. No evidence for saturation kinetics was obtained and values of kcat determined at pH 7 and 25° (I = 0.1 mol dm-3) are 4.24 × 10-3 dm3 mol-1 s-1 (tren) < 3.05 × 10-2 dm3 mol-1 s-1 (cyclen) < 7.5 × 10-1 dm3 mol-1 s-1 (trpn). Studies involving the more reactive phosphonate ester 2,4-dinitrophenyl Et methylphosphonate suggest that the rate-determining step in the reaction is the decomposition of the ternary complex between the Co(III) complex and the phosphotriester. The rate enhancement using 0.01 mol dm-3 Co(trpn)3+ is some 4.6 × 104 fold at pH 7 and 25°. In the experiment, the researchers used many compounds, for example, 3,3′,3”-Nitrilotripropanenitrile (cas: 7528-78-1Reference of 7528-78-1).
3,3′,3”-Nitrilotripropanenitrile (cas: 7528-78-1) belongs to nitriles. The electronic structure of nitriles is very similar to that of an alkyne with the main difference being the presence of a set of lone pair electrons on the nitrogen. Nitrile groups in organic compounds can undergo a variety of reactions depending on the reactants or conditions. A nitrile group can be hydrolyzed, reduced, or ejected from a molecule as a cyanide ion.Reference of 7528-78-1
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts