Experiment 12

Exp 12 Data

SPECTROPHOTOMETER Dye cyanine carbocyanine dicarbocyanine

∆E=hc/λ λmax (m), calc λmax (m), exp ∆E= LUMO-HOMO Percent Error 3.38E-19 5.88E-07 5.90E-07 -0.36 2.77E-19 7.16E-07 7.08E-07 1.16 2.35E-19 8.45E-07 8.14E-07 3.67

HMO Dye cyanine carbocyanine dicarbocyanine

λmax (m), HMO λmax (m), exp ∆E= LUMO-HOMO Percent Error 3.39662E-19 5.85236E-07 5.90E-07 8.14093E-03 2.94801E-19 6.74293E-07 7.08E-07 4.99883E-02 2.57951E-19 7.70621E-07 8.14E-07 5.62912E-02

SPARTAN (SPTN) Dye cyanine carbocyanine dicarbocyanine

λmax (m), SPTN λmax (m), exp ∆E= LUMO-HOMO Percent Error 9.69319E-19 2.05074E-07 5.90E-07 1.87701E+00 8.87608E-19 2.23953E-07 7.08E-07 2.16138E+00 8.28327E-19 2.39981E-07 8.14E-07 2.39194E+00

1eV= h= c= 1eV= h= c=

1.60218E-19 J 6.63E-34 Js 3.00E+08 m/s 1.60218E-19 J 6.63E-34 Js 3.00E+08 m/s