Knowledge Bank

Several binary $Pt-N2$ complexes have been observed in rare-gas matrices and in pure $N2$ matrices at $14\circ K$ . The N-N stretching mode in the region 2050 - $2360cm-1$ has been measured as well as changes in the atomic PL absorption spectrum. Variation of $N2$ concentration in the rare gases, controlled annealing and isotopic substitution have led to the assignment of the N-N stretching modes of $Pt(N2)$ and $Pt(N2)2$. Several other complexes $Ptx(N2)y$ where either x or y is 2 or more could not be uniquely identified. Evidence is presented which strongly indicates that Pt atoms diffuse in Ar matrices more readily than do $N2$ molecules.