ev cm-, 'um n k n k 1.22 9,840 1.016 2.8 1.2 9,679 1.033 1.07 1.8 1.18 9,518 1.051 1.2 x 10-4 1.16 9,356 1.069 6.7 x 10-1 1.14 9,195 1.088 4.2 1.12 9,034 1.107 2.5 1.107 8,929 1.12 3.5361 [1, 2, 3, 8] 1.10 8,872 1.127 1.3 x 10-1 1.084 8,741 1.144 3.5295 1.08 8,711 1.148 5.8 x 10-6 1.06 8,550 1.170 1.5 1.033 8,333 1.20 3.5193 0.9037 7,289 1.372 3.5007 0.8856 7,143 1.4 3.4876 0.8093 6,527 1.532 3.4784 0.7749 6,250 1.6 3.4710 0.7310 5,896 1.696 3.4644 0.6888 5,556 1.8 3.4578 0.6199 5,000 2.0 3.4490 0.5087 4,103 2.4373 3.4434 0.4959 4,000 2.50 3.4424 0.4568 3,684 2.7144 3.4393 2.5 x 10 9 [12] 0.4133 3,333 3.00 3.4361 0.3753 3,027 3.3033 3.4335 0.3626 2,925 3.4188 3.4327 0.3542 2,857 3.50 3.4321 0.3263 2,632 3.80 1.3 x 10-1 0.3100 2,500 4.00 3.4294 0.2480 2,000 5.00 3.4261 1.99 X 10-7 [15] 0.2418 1,950 5.128 2.82 x 10 - 7 0.2356 1,900 5.263 2.97 0.2294 1,850 5.405 3.26 0.2232 1,800 5.556 3.94 0.2170 1,750 5.714 4.05 0.2108 1,700 5.882 4.17 0.2066 1,667 6.00 3.4242 0.2046 1,650 6.061 5.64 0.1994 1,600 6.250 8.46 x 10 - 7 0.1922 1,550 6.452 1.74 x 10-6 0.1860 1,500 6.667 2.66 x 10-6 0.1798 1,450 6.897 2.45 x 10-' 0.1771 1,492 7.00 3.4231 0.1736 1,400 7.143 1.68 1.87 [14] 0.1674 1,350 7.407 1.62 [15] 0.1612 1,300 7.692 2.49 2.82 [14]