INFRARED SPECTRUM OF DIFLUORAMINE

Author Institution: Molecular Spectroscopy Section, National Bureau of StandardsThe infrared spectrum of gaseous difluoramine, $HNF_{2}$, has been investigated over the range $250-4000 cm^{-1}$. The fundamental frequencies (in $cm^{-1}$), their assignment and band types are as follows: $3193, \nu_{1}(a^{\prime}$, type C); 1306, $\nu_{2}(a^{\prime}$, type B); 972, $\nu_{3}(a^{\prime}$, type B); $500, \nu_{4}(a^{\prime}$, type B); $1424, \nu_{5}(a^{\prime\prime}$, type A); $888, \nu_{6}(a^{\prime\prime}$, type A). the three type-B bands are well resolved into Q branches with a spacing of approximately $3 cm^{-1}$.The P and R branches of the type A $888 cm^{-1}$ band are also resolved with a spacing of approximately $0.7 cm^{-1}$. The values of the rotational constants A and ${^{1}}/_{2} (B+C)$ obtained from these infrared results are in agreement with those determined much more precisely from the microwave spectrum. No inversion splitting was detected in the fine-structure of the resolved bands

PowerStorm 4DT: A Highperformance Graphics Software Architecture

The PowerStorm 4DT series of graphics devices established DIGITAL as the OpenGL performance leader for mid-range workstations, both on the DIGITAL UNIX and the Windows NT operating systems. Achieving this level of success required combining the speed of the Alpha microprocessor with the development of an advanced graphics subsystem architecture focused on exceptional software performance. The PowerStorm 4DT series of graphics adapters uses a modified direct-rendering technology and the Alpha CPU to perform geometry and lighting calculations