M-122
DAE-BRNS 3rd International DAE-BRNS 6th Interdisciplinary Symposium Symposium on Materials on Materials Chemistry,December Chemistry, December 7-11,2010,Mumbai,India 6-10, 2016, Mumbai, India
!33' &&!3' 3 !33' &&!3' 3 Spectroscopic Studies on Newly Synthesized BHP Compound Using !33' &&!3' 3 Solvatochromic Approaches " !3" ! 33&3" !3 3'3% !3"& '!3 3 ? " !3" ! 33&3" !3 3'3% !3"& '!3 3 a a b a
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Vani R. Desai , Shirajahammad M. Hunagund , Mahantesha Basanagouda ,Malatesh Pujar Jagadish S. " !3" ! 33&3" !3 3'3% !3"& '!3 3 Ashok H. Sidaraia* Kadadevarmatha and /(?'6?! (3?)&(*&00?6?% 3?&! &? % 3.! &?$*? ? /(?'6?! ( 3?)&(*&00?6?% &! &? % 3.! &?$* ? a H? 3? Department of Studies in Physics, Karnatak University, Dharwad-580003, Karnataka, India %( &?)6?!0&?? &,?6?)((H? b /(?'6?! ( 3?)&(*&00?6?% &! &? % 3.! &?$* ? ?? &,?6?)(( %( &?)6?!0& P. G. Department of Studies in Chemistry, K. L. E. Society’s P. C. Jabin Science College, Hubli-580031, Karnataka, India ? 3??? &,?6?)(( H? email ID:
[email protected] %( &?)6?!0& ? 6 *66$# 6#6 " # -6 &6'# #-6" /571114-6 &-6#6 6 ? *66$# 6#6 " # -6 &6'# #-6" /571114-6 &-6#6 6 0606#6$#6((!-6(#/571142-6 &-6 6 06 06 *66$# 6#6"*# -60606 06$#: 6 *66$# 6#6 " # -6 &6'# #-6" /571114-6 &-6#6 6 06 06 *66$# 6#6"*# -60606 06$#: 6 0606#6$#6((!-6(#/571142-6 &-6 Abstract #6 6 06 06 *66$# 6#6"*# -60606 06$#: 6 #6 0606#6$#6((!-6(#/571142-6 &-6 >
#!6" 6*#(693 $+ !!9!'!&*'3 #6 Absorption and fluorescence spectra of newly synthesised 3(2H)-pyridazinone derivative 5-(5-bromo>
#!6" 6*#(693 $+ !!9!'!&*'3 6 >
#!6" 6*#(693 $+ !!9!'!&*'3 2-hydroxy-phenyl)-2-phenyl-2H-pyridazin-3-one[BHP] have been measured at room temperature 6 in solvents of different polarities. Experimentally, 6 the ground and excited state dipole moments are estimated6 using( 6 solvatochromic approaches, which involves Bakshiev’s and Kawski-Chamma-Viallet’s 666666666666 #6 6 6 (6 " # 6 6 4B@? 86BB? =? 0.93 5 S22=5097 $3D=8B@? 86B;? ???=? ? Table 3.The radius and values of ground and ex#&3/6+&!?( ??.! ?#?%??!(!? cited !?(.!?00! ?#?$?06? state dipole moments of BHP compound. !&3'' 3 ! 3
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( ?#?&!? .!?0.!.!?! !(!.6?" %!?(? The steady-state absorption and fluorescence ( ? #? &!? 0.!.!? ! (0!? ?
%%! !? measurements of BHP ? compound were made? in
?2>46? different solvents at room temperature. Based on these ? studies, the absorption maxima wave number ( υ a ), .*.3
!),63'3 fluorescence maxima wave number (υ ), Stokes shift +&!!(..3?%? !?(.!?00!?.!? $? 0? ? ! (0!? ?
(58B? ( υ a #? ) and the arithmetic mean (%? of wave numbers υ f
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