Journal of the American Chemical Society p. 3854 - 3858 (1988)
Update date:2022-08-04
Topics:
Meot-Ner (Mautner), Michael
The interaction energies of CH3COO- with protic and aprotic molecules were measured by pulsed high-pressure mass spectrometry.The attachment energies of the first three water molecules are 15.8, 12.8, and 11.8 kcal/mol.The rapid approach to ΔHcondsn(H2O) shows that ionic interactions are accounted for mostly by the first two solvent molecules.CH3COO- hydrogen bonds strongly to NH acids such as pyrrole, amides, and aniline, with ΔHoD = 25 - 31 kcal/mol.With the carbon acids CH3CHO, CH3COCH3, and CH3CN as ligands, the attachment energies are are 14-16 kcl/mol and the interactions may involve multiple O-..HC bonds.Despite the fact that the ions CH3COO-, Cl-, CN-, and SH- differ in size, structure,electronegativity, isotropy, and available bond sites, they bond with similar strengths to most OH, NH, and CH hydrogen donors, from H2O to large organic molecules such as the dipeptide analogue CH3CO-Ala-OCH3.Also, the four ions show similar clustering energies with n H2O and HCN molecules (n = 1-4).
View MoreNanjing CoreTech Biomedical Co.,Ltd
Contact:86-025-84989826/ 52880806
Address:No.18 Zhilan Road ,Jiangning District , Nanjing
Qingdao Kylin Trading Co., Ltd.
Contact:0086-532-68979884/58972912/68972263/65/88171519
Address:Room 2308,A building International Trade Center No.230 Changjiang Middle Road of Qingdao Economic Development Zone,Shandong,China.
LIANYUNGANG LEADING CHEMICAL AND TRADING CO.,LTD.
Contact:86-15669938129
Address:Building 3, Xingang International, NO.178,Xinxin Road, Haizhou District, Lianyungang City, Jiangsu Province,China
Shenyang Xingzhenghe Chemical Co., Ltd.
Contact:024-23509232
Address:No. 33, Naner Road, Heping Dist.
Baoding City Light Industry And Textiles Imp.& Exp. Corp. Chemical Department.
Contact:86-312-3262436
Address:NO.658 CHAOYANG SOUTH STREET,BAODING CITY HEBEI CHINA
Doi:10.1021/om0607649
(2007)Doi:10.1002/aoc.4156
(2018)Doi:10.1021/jo00197a020
(1984)Doi:10.1039/jr9620002089
(1962)Doi:10.1021/om060826v
(2007)Doi:10.1021/jo00198a001
(1984)