We analyzed its molecular composition and compared the result with that of three other laboratories to confirm that it mainly contains 24 types of hydrocarbons: methane, ethane, propane, isobutane, M-butane, neopentane, isopentane, M-pentane, methyl cyclopentane, cyclohexane, 2-methylpentane, 3-methylpentane, M-hexane, 2,2/3,3-dimethyl pentane, methyl cyclohexane, 2/3-methyl hexane, 2,3-dimethyl pentane, M-heptane, benzene, M-octane, methyl benzene, M-nonane, ethylbenzene,p-xylene, and o-xylene.
1, Methane; 2, ethane; 3, propane; 4, isobutane; 5, n-butane; 6, neopentane; 7, isopentane; 8, n-pentane; 9, methyl cyclopentane; 10, cyclohexane; 11, 2-methylpentane; 12, 3-methylpentane; 13, n-hexane; 14, 2,2/3,3-dimethyl pentane; 15, methyl cyclohexane; 16, 2/3methylhexane +2,3-dimethyl pentane; 17, n-heptane; 18, benzene; 19, n-octane; 20, methylbenzene; 21, n-nonane; 22, ethylbenzene; 23, p-xylene; 24, o-xylene.
1, Methane; 2, ethane; 3, propane; 4, isobutane; 5, n-butane; 6, isopentane; 7, n-pentane; 8, methyl cyclopentane; 9, cyclohexane; 10, 2-methylpentane; 11, 3-methylpentane; 12, n-hexane; 13, methyl cyclohexane; 14, 2/3-methylhexane; 15, n-heptane; 16, benzene; 17, n-octane; 18, methylbenzene; 19, n-nonane; 20, p-xylene.
The longest wavelength absorption maximum of 52 is observed at 510 nm ([epsilon] 1200) at 77K in a 3-methylpentane glass matrix and assignable to a [pi][right arrow][[pi].sup.*] transition band.
([epsilon]/[10.sup.3]) Si)/ppm 1a 290 (2.5), 360 (1.9), 420 (2.8) 142.1 8a 1b 293 (2.1), 357 (1.4), 412 (7.6) 144.5 8a 1c 296 (5.4), 370 (2.4), 425 (1.9), 154.5 8a 480 (2.2) 1d --b) 141.9 8b 1e 293 (2.6), 359 (2.0), 413 (5.0) 132.4, 156.6 8c 1f --b) 142.0, 152.7 8c 8 290 (8.2), 375 (2.0), 612 (1.3) 155.5 10 5a 266 (5.3), 295 (2.6), 362 (3.1), -- 8d, 8e 421 (7.0) 5b 361 (2.9), 413 (16.1) -- 8d 5c 277 (3.5), 367 (2.2), 432 (2.1), -- 8d 472 (2.0) 6a 359 (2.0), 413 (5.0) 144.0 8e a) In hexane or 3-methylpentane. b) Not measured.