Free radical reactions of N2O molecules

Experimental data are presented on the spectral (ESR, IR, and optical) and thermochemical characteristics of a complex between the (equivalent to Si-O )(3)Si-. radical and an N2O molecule. The rate constants of separate reacti ons in the systems (equivalent to Si-O)(3)Si-. + N2O and (equivalent to Ge- O)(3)Ge-. + N2O are found. The results of quantum chemical calculations of potential energy surfaces and spectral characteristics are presented for th e following systems: H-. + N2O, H3C. + N2O, H3Si. + N2O, F2HSi. + N2O, F3Si . + N2O, and F3Ge. + N2O. The latter three systems served as molecular mode ls for experimentally found systems. Based on experimental and theoretical data, the product of N2O addition to (equivalent to Si-O)(3)Si-. has the st ructure =_Si-N=N-O-.. The reactions of free radicals H-., H3C., H3Si., F2HS i, F3Si., (equivalent to Si-O)(3)Si-., and (equivalent to Ge-O)(3)Ge-. with N2O are compared. The spectrum of optical absorbance of the (equivalent to Si-O)(3)Si-O-. radical is recorded and qualitatively characterized.