Supporting Imformation Effects of Hydrogen Bond and Solvent Polarity on the C=O Streching and Photophysical Properties of bis(2-thienyl)ketone in Solution Huigang Wang*a,b,c, liBo Wang a,b, Shaosong Shen a,b, Wenfei Zhang a,b, Mingde Li c, Lili Du c, Xuming Zheng* a,b,David Lee Phillipsc a Department of Chemistry and State Key Laboratory of advanced Textiles Materials and Manufacture Technology, MOE, Zhejiang Sci-Tech University, Hangzhou 310018, China b Engineering Research Center for Eco-dyeing and Finishing of Textiles, MOE, Zhejiang Sci-Tech University, Hangzhou 310018, China c Department of Chemistry, The University of Hong Kong, Pokfulam Road,Hong Kong S.A.R., P. R. of China * * [E] * [D] * * * * [C] * [B] [A] 200 400 600 800 1000 1200 1400 1600 1800 2800 3000 3200 3400 -1 Ramanshift(cm ) Figure S1 Simulated Raman spectra within the frame work of (A)DFT levels of theory with B3LYP/6-311G* basis set. Experimental Raman spectra with excitation wavelength 252.7 nm(B) in crystal state, (C)in cyclohexane, (D)in methanol, (E) in acetonitrile solutions. Asterisks indicate respective solvent bands. * * [E] * [D] * * * * [C] * [B] [A] 200 400 600 800 1000 1200 1400 1600 1800 2800 3000 3200 3400 -1 Ramanshift(cm ) Figure S2 Simulated Raman spectra within the frame work of (A)DFT levels of theory with B3LYP/6-311G* basis set. Experimental Raman spectra with excitation wavelength 266 nm(B) in crystal state, (C)in cyclohexane, (D)in methanol, (E) in acetonitrile solutions. Asterisks indicate respective solvent bands. * * [E] [D] * ** * [C] [B] [A] 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 -1 Ramanshift(cm ) Figure S3 Simulated Raman spectra within the frame work of (A)DFT levels of theory with B3LYP/6-311G* basis set. Experimental Raman spectra with excitation wavelength 282.4 nm(B) in crystal state, (C)in cyclohexane, (D)in methanol, (E) in acetonitrile solutions. Asterisks indicate respective solvent bands. [E] * * [D] [C] * * * [B] [A] 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 -1 Ramanshift(cm ) Figure S4 Simulated Raman spectra within the frame work of (A)DFT levels of theory with B3LYP/6-311G* basis set. Experimental Raman spectra with excitation wavelength 319.9 nm(B) in crystal state, (C)in cyclohexane, (D)in methanol, (E) in acetonitrile solutions. Asterisks indicate respective solvent bands. 12 14 9 10 7 10+7 9 + 7 27 210 10+33 10+29 7+33 7+29 10+19 10+17 20 19 2933 25 FT-Raman 319.9 in C6H12 Intensity 309.1 in C6H12 282.4 in C6H12 266 in C6H12 FT-IR 0 1000 2000 -1 3000 4000 Ramanshift(cm ) Figure S5 Comparison of the FT-Raman, FT-IR, 319.9, 309.1, 282.4, 266.0 nm resonance Raman spectra of bis(2-thienyl)ketone Relative Absorbance [B] [A] 400 600 800 1000 1200 1400 1600 3000 3200 3400 -1 Wavenumber(cm ) Figure S6. [A]DFT levels of theory with B3LYP/6-311G* [B]IR spectrum of bis(2-thienyl)ketone (experiment) 1 0.00 s (LP Spectral Scan) 1 0.00 s 2 200.00 ns 3 400.00 ns 5 800 ns 6 1000 ns 7 1200 ns 0.10 0.08 0.06 0.04 0.02 0.00 350 400 450 500 550 600 650 700 750 Wavelength/nm Figure S7. nanosecond transient absorption spectra of bis(2-thienyl)ketone measured at 0, 200, 400, 800, 1000 and 1200 ns from top to bottom. bis(2-thienyl)ketone-c6h12-662nm (LP Time Scan) bis(2-thienyl)ketone-c6h12-662nm ExpDec1 of bis(2-thienyl)ketone-c6h12-662 Equation 0.006 y = A1*exp(-x/t1) + y0 Reduced Chi-Sqr 5.71076E-8 Adj. R-Square 0.91742 Value 0.003 Standard Error ketone-c6h12-640 y0 -2.60569E-5 1.08529E-5 ketone-c6h12-640 A1 1.81957E30 3.59083E30 ketone-c6h12-640 t1 9.53065 0.25102 0.000 800 1000 1200 Wavelength/nm Figure S8. nanosecond transient absorption decays of bis(2-thienyl)ketone excited at 266 nm measured at 662 nm (lines) and the transient absorption decay at 662 nm was fitted with a exponential functions: y = A1*exp(-x/τ) + y0. The table inserted shows the fitting parameters. Integrated intensity (a.u.) 200 250 300 350 400 450 500 550 600 650 700 Wavelength/ nm Figure S9 B3LYP-TD/6-311G(d) computed triplet excitons electronic absorption spectrum of bis(2-thienyl)ketone