Journal of the Chemical Society - Faraday Transactions p. 869 - 874 (1994)
Update date:2022-08-02
Topics:
Isoda, Teruyo
Yamasaki, Miyuki
Yano, Hiroshige
Sano, Takayuki
Harada, Shoji
The protolysis of carboxylic acids has been kinetically studied by the ultrasonic absorption method in the presence of tetradecyltrimethylammonium bromide (TTAB) micelles in aqueous solution.The carboxylic acids studied were classified into two categories, one capable of formation of intramolecular hydrogen bond, namely the salicylic acid derivatives (SAD) and the other which cannot form the bond, namely the benzoic acid derivatives (BAD).The rate constant (γ2kf, kb), the apparent dissociation constant (Ka), and the volume change of the reaction (ΔV) were obtained.Different Ka dependences of the rate constants observed for SAD and BAD are discussed in relation to the effect of intramolecular hydrogen bond. pKa dependences were also observed for ΔV of SAD and BAD.These dependences are larger than those in aqueous solution.This result was attributed to the change of arrangement of water molecules around the solute in micellar solution and aqueous solution.
View MoreHeliosense Biotechnologies, Inc.
website:https://www.heliosense.com/
Contact:+86-592-5667290
Address:Xiamen Torch Hi-tech Zone Venture Weiye Building S506
Jiangxi Dongbang Pharmaceutical Co., Ltd.
Contact:+86-795-4433603, 4433388
Address:Fengxin Industrial Park, Fengxin County, Jiangxi Province, P.R.C
Linyi Shengxin Pharmaceutical R&D Co., Ltd
Contact:+86-18653953873
Address:West First of Yufeng Road, Yishui County
Shanxi Tongji Pharmaceuticals Co., Ltd.
Contact:+86-359-3024784
Address:Xikuang South Road, Ruicheng County , Shanxi
Contact:86-574-26865651
Address:529 YuanBaoShan Road, Beilun District
Doi:10.1021/jo025964i
(2002)Doi:10.1016/0008-6215(79)80014-2
(1979)Doi:10.1016/S0022-1139(98)00351-0
(1999)Doi:10.1016/0045-2068(78)90013-5
(1978)Doi:10.1007/BF00472366
()Doi:10.1039/b203604e
(2002)
