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:CO = 2:1
(no = 1.25)
(d = 5.87x10-5 cm)

FREQUENCY	n	k
(cm-1)

2057.7	1.2571	0.0007
2065.5	1.2577	0.0007
2073.2	1.2585	0.0007
2080.9	1.2597	0.0009
2088.6	1.2623	0.0023
2096.3	1.2604	0.0009
2098.7	1.2616	0.0009
2101.1	1.2628	0.0008
2103.6	1.2638	0.0008
2106.0	1.2649	0.0012
2108.4	1.2660	0.0010
2110.8	1.2673	0.0013
2113.2	1.2690	0.0017
2115.6	1.2706	0.0016
2116.6	1.2716	0.0014
2117.5	1.2725	0.0017
2118.5	1.2735	0.0017
2119.5	1.2745	0.0019
2120.4	1.2758	0.0017
2121.4	1.2772	0.0020
2122.4	1.2786	0.0020
2123.3	1.2802	0.0022
2124.3	1.2821	0.0020
2125.2	1.2843	0.0025
2126.2	1.2864	0.0026
2127.2	1.2894	0.0025
2128.1	1.2926	0.0026
2129.1	1.2965	0.0029
2130.1	1.3013	0.0031
2130.6	1.3040	0.0031
2131.0	1.3071	0.0034
2131.5	1.3106	0.0034
2132.0	1.3145	0.0035
2132.5	1.3191	0.0037
2133.0	1.3244	0.0040
2133.4	1.3306	0.0042
2133.9	1.3384	0.0049
2134.4	1.3475	0.0056
2134.9	1.3588	0.0072
2135.4	1.3727	0.0103
2135.9	1.3900	0.0164
2136.3	1.4099	0.0254
2136.8	1.4351	0.0376
2137.3	1.4705	0.0549
2137.8	1.5190	0.0951
2138.3	1.5643	0.2098
2138.7	1.5250	0.4303
2139.2	1.3614	0.6073
2139.7	1.1538	0.5721
2140.2	1.0286	0.4149
2140.7	0.9820	0.2683
2141.2	0.9872	0.1690
2141.6	1.0087	0.1061
2142.1	1.0328	0.0635
2142.6	1.0597	0.0306
2143.1	1.0868	0.0085
2143.6	1.1116	0.0016
2144.1	1.1302	0.0000
2144.5	1.1443	0.0000
2145.0	1.1552	0.0000
2145.5	1.1641	0.0000
2146.0	1.1714	0.0000
2146.5	1.1775	0.0000
2146.9	1.1827	0.0000
2147.4	1.1871	0.0000
2147.9	1.1909	0.0000
2148.4	1.1944	0.0000
2148.9	1.1975	0.0000
2149.4	1.2002	0.0000
2149.8	1.2025	0.0000
2150.3	1.2047	0.0000
2150.8	1.2068	0.0000
2151.3	1.2088	0.0000
2151.8	1.2106	0.0000
2152.2	1.2121	0.0000
2152.7	1.2135	0.0000
2153.2	1.2148	0.0000
2153.7	1.2161	0.0000
2154.2	1.2173	0.0000
2154.7	1.2183	0.0000
2155.1	1.2194	0.0000
2156.1	1.2213	0.0000
2157.1	1.2229	0.0000
2158.0	1.2244	0.0002
2159.0	1.2256	0.0001
2160.0	1.2268	0.0002
2160.9	1.2278	0.0002
2161.9	1.2289	0.0001
2162.9	1.2300	0.0002
2163.8	1.2308	0.0004
2164.8	1.2316	0.0004
2165.7	1.2322	0.0004
2166.7	1.2331	0.0005
2167.7	1.2336	0.0006
2168.6	1.2341	0.0006
2169.6	1.2348	0.0004
2172.0	1.2360	0.0008
2174.4	1.2370	0.0010
2176.8	1.2380	0.0008
2179.2	1.2384	0.0014
2181.7	1.2392	0.0013
2184.1	1.2396	0.0014
2186.5	1.2399	0.0014
2188.9	1.2405	0.0015
2191.3	1.2410	0.0016
2193.7	1.2412	0.0016
2196.1	1.2414	0.0018
2204.3	1.2421	0.0018
2211.5	1.2422	0.0014
2219.7	1.2423	0.0012
2227.9	1.2428	0.0000
2236.1	1.2439	0.0000