The molar extinction coefficient of Naphthalene dissolved in cyclohexane based on the absorbance measurements made by R. A. Fuh on 69/95 using a Cary 3 [H. Du, R. A. Fuh, J. Li, A. Corkan, J. S. Lindsey, "PhotochemCAD: A computer-aided design and research tool in photochemistry," Photochemistry and Photobiology, 68, 141-142, 1998]. The absorbance data was normalized to have an extinction coefficient of 6000 at 275 nm [I. B. Berlman, Handbook of Fluorescence Spectra of Aromatic Molecules, Academic Press, 1971].

To convert this data to absorbance A=-log10(T), multiply by the molar concentration and the pathlength in centimeters. To convert this data to absorption coefficient in (cm-1), multiply by the molar concentration and 2.303. 

lambda   	Extinction 
nm       	cm-1/M

 219.00	   13130
 220.00	   13379
 221.00	   13104
 222.00	   12943
 223.00	   12464
 224.00	   12162
 225.00	   11589
 226.00	    9148
 227.00	    5823
 228.00	    3887
 229.00	    2673
 230.00	    2028
 231.00	    1646
 232.00	    1391
 233.00	    1245
 234.00	    1172
 235.00	    1129
 236.00	    1125
 237.00	    1157
 238.00	    1211
 239.00	    1243
 240.00	    1289
 241.00	    1337
 242.00	    1414
 243.00	    1515
 244.00	    1630
 245.00	    1778
 246.00	    1938
 247.00	    2075
 248.00	    2183
 249.00	    2263
 250.00	    2338
 251.00	    2459
 252.00	    2670
 253.00	    2881
 254.00	    3132
 255.00	    3370
 256.00	    3570
 257.00	    3679
 258.00	    3731
 259.00	    3699
 260.00	    3756
 261.00	    4034
 262.00	    4400
 263.00	    4650
 264.00	    4971
 265.00	    5300
 266.00	    5414
 267.00	    5225
 268.00	    4967
 269.00	    4680
 270.00	    4606
 271.00	    4951
 272.00	    5374
 273.00	    5538
 274.00	    5723
 275.00	    6000
 276.00	    5959
 277.00	    5333
 278.00	    4626
 279.00	    3989
 280.00	    3532
 281.00	    3444
 282.00	    3609
 283.00	    3929
 284.00	    3892
 285.00	    3896
 286.00	    4029
 287.00	    3861
 288.00	    3349
 289.00	    2450
 290.00	    1600
 291.00	    1077
 292.00	     767
 293.00	     586
 294.00	     442
 295.00	     364
 296.00	     316
 297.00	     346
 298.00	     330
 299.00	     286
 300.00	     280
 301.00	     293
 302.00	     273
 303.00	     241
 304.00	     224
 305.00	     214
 306.00	     203
 307.00	     157
 308.00	     134
 309.00	     142
 310.00	     212
 311.00	     264
 312.00	     192
 313.00	     103
 314.00	      23
 315.00	      47
 316.00	      35
 317.00	      14
 318.00	       3
 319.00	      34
 320.00	      27
 321.00	      48
 322.00	      14
 323.00	       6
 324.00	      24
 325.00	       0
 326.00	      31
 327.00	       0
 328.00	       7
 329.00	       0
 330.00	      23
 331.00	       9
 332.00	       0
 333.00	      24
 334.00	       0
 335.00	       0
 336.00	       0
 337.00	       4
 338.00	      18
 339.00	       1
 340.00	      18