186 4500 1,00 4300 4 r— dang 4100 3900 emer i. 3700 1 + T 3500 A 3300 T 7 WAVELENGTH 3100 T rt [A) T 2900 T . 2700 . t 2500 1. + T 4 T $e 3"-D METHYL-P-TERPHENTL 0.90} CONC. T&PCt z Oo 4 28000 SOLVENT CYCLOHEXANE 0.15 G/L exciTING WAVELENGTH 30308 _) 24000 o SLIT WIDTH 0.08 Mi - TE guanTUN TIELD O39 — ES DECAY TIME 1.0 NSEC Ww rad ‘ oO 0.60, o NATURAL LIFETIME 1.6] NSEC x WAVELENGTH (AVE) 34S4R oc » O50, zr WAVELENGTH (CG) a) STOKES LOSS 3000 CMT! _ Gowol ~— ZoO.30L oO = 420000 4! Le / 3482A w 4 16000 5 z / 5 i _ / Lo/l = 1.08 / / EMISSION 5 J f 412000 z 5 ~< us ABSORPTION a 4 s000 & o zr a o @ o.20 1 * CH ’ mT 0.00 22000 1 24000 23000 4. 4 1 7000 260cg 25000 1 28000 1 29000 4 su0cg a 32000 O29 =e L \ 33000 32000 WAVE NUMBER CH 3 34000 1 35000 (CM 7} 1 36000 4 37000 1 3 38000 | 4000 ‘ 38000 1 yoouN L 41000 4 42000 43000 Fic. 140.—CompoundII, 3,3”-dimethyl-p-terpheny! 1.00 43004100 — gs00, r 3700 3500 + 3300 i T 3100 a WAVELENSTH (A) 2900 1 t+ 2700 2500 } 2300 . 2-METHYL-P~ TERPHENTL O30} SOLVENT CYCLOHEXANE CONC. _] 24000 O.1 G/L 65080} excrTING HAVELENGTH 26S0A ‘3 co SLIT WIOTH O16 MM > 70 QUANTUM YIELD 0.67 & 0.601 a DECAY TIME 1.0 NSEC NATUPAL LIFETIME 1.72 NSEC —! x c s = oso = oe) = lw 0.40 5 WAVELENGTH (AVE) WAVELENGTH (£61 STOKES LOSS r ZO30L ~ Net | 20000 = - 5 rT] = 3378A } ui 9 = / 3476 CM"! / 43 Lg/t = 1.07 / EMISSION / BSORPTION / é 2 2 / O 5,20 1 25000 1 26000 1 27000 — 2A000 1 29000 L 30000 Ll 21000 - 32000 23000 oe 34000 c = 4000 0 f WAVE NUMBER is oc / WA L 80oa a \ 24000 “ oS 2000 — e w = = / Ota 27000 4 16000 / / 3393AR — oO 0. 00 = / / 1 35000 l 36000 (CM ~') L 237000 141.—CompoundITI, 2-methyl-p-terpheny1 1 38000 lL 39000 L 40000 ) 41000 1 42000 1 43000 44C00