caa a22 4500 37893211X CHVBK 20180305123632.0 cr unu---uuuuu 161128e20040201xx s 000 0 eng 10.1524/zpch.218.2.231.25921 doi (NATIONALLICENCE)gruyter-10.1524/zpch.218.2.231.25921 New Method to Analyse IR-Studies of Monomer-Dimer Self-Association: 2,2-Dimethyl-3-Ethyl-3-Pentanol in Carbon Disulfide as an Example [Elektronische Daten] [Jenn-Shing Chen, Dah-Yu Kao] Two new equations have been derived to treat the IR data from the monomer-dimer self-association. Equation (9), in the text, is to regress the integrated absorbances of the monomer bands to determine the molar absorptivity of the monomer band, εm, and the dimerization constant, K. Equation (13), in the text, is to regress those of dimer band to obtain the molar absorptivity of the dimer band, εd, and dimerization constant K. The self-association in the dilute solution of 2,2-dimethyl-3-ethyl-3-pentanol in carbon disulfide at different temperatures has been used as an example to demonstrate the usage of these two equations. The discrepancy between the values of K at the same temperature determined either from the monomer band or from the dimer band can be used as a criterion for the goodness of determination. The standard enthalpy and entropy of dimerization have also been obtained via a van't Hoff plot from the data of K at different temperatures. The advantages of this new approach have also been discussed. © 2004 Oldenbourg Wissenschaftsverlag GmbH Thermodynamics & statistical physics nationallicence Laboratory techniques, experiments nationallicence Physical chemistry nationallicence Chen Jenn-Shing aut Kao Dah-Yu aut Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 218/2/2004(2004-02-01), 231-244 0942-9352 218:2/2004<231 2004 218 zpch https://doi.org/10.1524/zpch.218.2.231.25921 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zpch.218.2.231.25921 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Jenn-Shing aut NATIONALLICENCE 700 1- Kao Dah-Yu aut NATIONALLICENCE 773 0- Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 218/2/2004(2004-02-01), 231-244 0942-9352 218:2/2004<231 2004 218 zpch CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter