TY - JOUR
T1 - Polarity, hydrogen bonding, and structure of mixtures of water and cyanomethane
AU - Marcus, Yizhak
AU - Migron, Yoelit
PY - 1991
Y1 - 1991
N2 - The polarity of mixtures of water and cyanomethane was established from measurements of Kamlet and Taft's (KT's) π*, their hydrogen bond acceptance ability from measurements of KT's β, and their hydrogen bond donation ability from measurements of KT's α, with suitable solvatochromic indicators. The structure of these mixtures was explored by use of thermodynamic data from the literature and the application of the quasi-lattice quasi-chemical (QLQC) and the inverse Kirkwood-Buff integral (IKBI) methods. It is concluded that these methods point toward strong so-called microheterogeneity in these mixtures, i.e., preference for neighbors of the same kind, that extends over several concentric shells around a given molecule. This preference decreases with increasing temperatures. The polarity and hydrogen bonding ability results are explained in terms of these structural features of the mixtures.
AB - The polarity of mixtures of water and cyanomethane was established from measurements of Kamlet and Taft's (KT's) π*, their hydrogen bond acceptance ability from measurements of KT's β, and their hydrogen bond donation ability from measurements of KT's α, with suitable solvatochromic indicators. The structure of these mixtures was explored by use of thermodynamic data from the literature and the application of the quasi-lattice quasi-chemical (QLQC) and the inverse Kirkwood-Buff integral (IKBI) methods. It is concluded that these methods point toward strong so-called microheterogeneity in these mixtures, i.e., preference for neighbors of the same kind, that extends over several concentric shells around a given molecule. This preference decreases with increasing temperatures. The polarity and hydrogen bonding ability results are explained in terms of these structural features of the mixtures.
UR - http://www.scopus.com/inward/record.url?scp=2542553444&partnerID=8YFLogxK
U2 - 10.1021/j100154a070
DO - 10.1021/j100154a070
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AN - SCOPUS:2542553444
SN - 0022-3654
VL - 95
SP - 400
EP - 406
JO - Journal of Physical Chemistry
JF - Journal of Physical Chemistry
IS - 1
ER -