This data was collected and compiled at the NASA/Ames Research Center, Moffett Field, CA.  Any use of this data should recognize the parent publication: 

"The 2140 cm-1 (4.673 microns) Solid CO Band: The Case for Interstellar O2 and N2 and the Photochemistry of Nonpolar Interstellar Ice Analogs", Jamie Elsila, Louis J. Allamandola, and Scott A. Sandford, THE ASTROPHYSICAL JOURNAL, Vol. 479, pages 818-838 (1997 April 20)


N2:O2:CO = 1:5:1
 (no = 1.25)
 (d = 8.1x10-5 cm)

FREQUENCY	n	k
(cm-1)

2065.4	1.2578	0.0005
2073.1	1.2585	0.0005
2080.9	1.2599	0.0006
2088.6	1.2622	0.0019
2096.3	1.2607	0.0009
2098.7	1.2618	0.0008
2101.1	1.2630	0.0008
2103.5	1.2639	0.0007
2105.9	1.2649	0.0009
2108.3	1.2662	0.0007
2110.8	1.2677	0.0008
2113.2	1.2693	0.0009
2115.6	1.2712	0.0007
2116.5	1.2721	0.0006
2117.5	1.2732	0.0007
2118.5	1.2743	0.0007
2119.4	1.2753	0.0007
2120.4	1.2768	0.0007
2121.4	1.2783	0.0008
2122.3	1.2798	0.0008
2123.3	1.2816	0.0008
2124.3	1.2838	0.0006
2125.2	1.2862	0.0005
2126.2	1.2891	0.0008
2127.2	1.2924	0.0008
2128.1	1.2960	0.0006
2129.1	1.3009	0.0006
2130.0	1.3063	0.0005
2130.5	1.3099	0.0006
2131.0	1.3139	0.0005
2131.5	1.3186	0.0004
2132.0	1.3242	0.0002
2132.5	1.3309	0.0002
2132.9	1.3373	0.0001
2133.4	1.3472	0.0002
2133.9	1.3601	0.0006
2134.4	1.3772	0.0028
2134.9	1.3996	0.0098
2135.4	1.4308	0.0273
2135.8	1.4425	0.0632
2136.3	1.4565	0.1159
2136.8	1.4485	0.1737
2137.3	1.4252	0.2229
2137.8	1.4018	0.2603
2138.2	1.3452	0.3011
2138.7	1.3172	0.3422
2139.2	1.2451	0.3700
2139.7	1.1648	0.3622
2140.2	1.0922	0.3164
2140.7	1.0605	0.2488
2141.1	1.0302	0.1729
2141.6	1.0310	0.1076
2142.1	1.0495	0.0545
2142.6	1.0771	0.0209
2143.1	1.1046	0.0061
2143.6	1.1266	0.0013
2144.0	1.1402	0.0000
2144.5	1.1534	0.0000
2145.0	1.1635	0.0000
2145.5	1.1714	0.0002
2146.0	1.1780	0.0004
2146.4	1.1824	0.0003
2146.9	1.1872	0.0006
2147.4	1.1913	0.0007
2147.9	1.1949	0.0008
2148.4	1.1980	0.0009
2148.9	1.2009	0.0010
2149.3	1.2028	0.0010
2149.8	1.2052	0.0010
2150.3	1.2073	0.0010
2150.8	1.2092	0.0010
2151.3	1.2111	0.0010
2151.7	1.2122	0.0010
2152.2	1.2138	0.0011
2152.7	1.2152	0.0012
2153.2	1.2165	0.0012
2153.7	1.2176	0.0013
2154.2	1.2188	0.0012
2154.6	1.2195	0.0011
2155.1	1.2206	0.0012
2156.1	1.2224	0.0013
2157.1	1.2242	0.0013
2158.0	1.2253	0.0014
2159.0	1.2266	0.0013
2159.9	1.2275	0.0015
2160.9	1.2287	0.0016
2161.9	1.2296	0.0016
2162.8	1.2303	0.0016
2163.8	1.2312	0.0017
2164.8	1.2319	0.0018
2165.7	1.2323	0.0016
2166.7	1.2333	0.0018
2167.7	1.2339	0.0019
2168.6	1.2342	0.0018
2169.6	1.2348	0.0017
2172.0	1.2358	0.0019
2174.4	1.2367	0.0020
2176.8	1.2375	0.0019
2179.2	1.2379	0.0022
2181.6	1.2385	0.0021
2184.1	1.2394	0.0019
2186.5	1.2395	0.0020
2188.9	1.2400	0.0020
2191.3	1.2404	0.0020
2193.7	1.2407	0.0019
2196.1	1.2409	0.0020
2204.3	1.2417	0.0017
2211.5	1.2422	0.0015
2219.7	1.2425	0.0013
2227.9	1.2430	0.0009