Observation and assignment of the hot band nu(2)+nu(1)(9)-nu(1)(9) in (HCN)(2)
The high-resolution infrared absorption spectrum for (HCN)(2) in the spectral region 3100-3300 cm(-1) is recorded in a static multipass cell at 240 K under equilibrium conditions. The spectrum shows extensive rovibrational structures which are due to the bound C-H stretching vibration band nu(2) of (HCN)(2) and several hot bands associated to nu(2). We manage to assign 63 new rovibrational transit
