The reactions of HO with CH 2O and of HCO with NO 2

Abstract

NO 2 was photolyzed at 366 nm in the presence of CH 2O at 296 K. Products of the reaction were CO and CO 2. H 2, HCOOH and N 2O were not produced. The results establish that the reaction of HO with CH 2O does not produce HCOOH, but there is evidence that about 50% of the HCO produced has sufficient excess energy to decompose spontaneously to H and CO. The reaction of HCO with NO 2 has two major (and probably exclusive) pathways: ▪ with k 9c/ k 9e ≈ 1.14 ± 0.13 if k 3b/ k 3 = 0, or k 9c/ k 9e ≈ 0.99 ± 0.13 if k 3b/ k 3 ≈ 0.30, where reactions (3) are ▪