Estimation of ground and excited state dipole moments of 6-methoxyquinoline from solvatochromic effect on absorption and fluorescence spectra

2013 ◽  
Author(s):  
Y. Tej Varma ◽  
Sunita Joshi ◽  
Debi D. Pant
Keyword(s):  
Excited State ◽  
Fluorescence Spectra ◽  
Dipole Moments ◽  
Absorption And Fluorescence Spectra ◽  
Solvatochromic Effect ◽  
Excited State Dipole Moments

Ground and Excited State Dipole Moments of LAURDAN Determined from Solvatochromic and Thermochromic Shifts of Absorption and Fluorescence Spectra

2000 ◽  
Vol 55 (9-10) ◽  
pp. 817-822 ◽  
Author(s):  
A. Kawski ◽  
B. Kukliński ◽  
P. Bojarski ◽  
H. Diehl
Keyword(s):  
Excited State ◽  
Fluorescent Probe ◽  
Electric Dipole ◽  
Fluorescence Spectra ◽  
Dipole Moments ◽  
Absorption And Fluorescence Spectra ◽  
Electric Dipole Moments ◽  
Excited State Dipole Moments

Abstract The electric dipole moments in the ground /µg and excited state of the fluorescent probe LAUR-DAN are determined from solvatochromic and thermochromic shifts to be /µg = 3.46 D, µe = 10.6 D and /µg = 3.76 D, /µe = 10.24 D, respectively. These values concern the free LAURDAN molecule. The val-ues of the dipole moments of LAURDAN (= 6-decanoyl-2-dimethylamine-naphthalene) exceed dis-tinctly those of PRODAN (= 6-propionyl-2-dimethylamine-naphthalene).

Ground and Excited State Dipole Moments of BADAN and ACRYLODAN Determined from Solvatochromic Shifts of Absorption and Fluorescence Spectra

2001 ◽  
Vol 56 (5) ◽  
pp. 407-411 ◽  
Author(s):  
A. Kawski ◽  
B. Kukliriski ◽  
P. Bojarski
Keyword(s):  
Excited State ◽  
Excited States ◽  
Fluorescent Probes ◽  
Electric Dipole ◽  
Fluorescence Spectra ◽  
Dipole Moments ◽  
Absorption And Fluorescence Spectra ◽  
Electric Dipole Moments ◽  
Solvatochromic Shifts ◽  
Excited State Dipole Moments

Abstract The electric dipole moments in the ground μg, and excited states μe of the fluorescent probes BADAN (6-bromoacetyl-2-dimethylamino-naphthalene) and ACRYLODAN (6-acrylolyl-2-dimethylamino-naphthalene) are determined from the solvatochromic shifts of their absorption and fluorescence spec­tra for two Onsager interaction radii (a = 4.2 and 4.6 Å). The obtained values of μg and μe for BADAN are comparable to those of PRODAN, while for ACRYLODAN they are distinctly greater.

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