%0 Conference Proceedings %T Tautomerization and intramolecular hydrogen bond strength of 1-(4- Chlorophenyl)-4,4,4-trifluorobutane-1,3-dione by quantum calculations and experimental spectroscopy %A Darugar, Vahidreza %A Vakili, Mohamad %A راهله افضلی %J نوزدهمین کنگره شیمی ایران %D 2017