On the other hand, the single CO vibrational band only absorbs IR at much higher frequencies ( 2145 cm " 1 ), where the ~ 300 K thermal emission of the surface is at least a factor of ten lower.
12.
Molecular copper hydride has the distinction of being the first metal hydride to be detected in this way . ( 1, 0 ) ( 2, 0 ) and ( 2, 1 ) vibrational bands were observed along with line splitting due to the presence of two copper isotopes, 63 Cu and 65 Cu.