Jozwiakowski M J, Connors K A
Glaxo, Inc., Research Triangle Park, North Carolina 27709.
Pharm Res. 1987 Oct;4(5):398-401. doi: 10.1023/a:1016482228318.
The title compound (6-NO2-BIPS) is adsorptiochromic, becoming colored upon adsorption to a polar surface. Powders of 6-NO2-BIPS adsorbed to silica gel or silicic acid are suspended in glycerin, and the absorption spectrum of the adsorbate is recorded by conventional absorption spectroscopy. The wave number of maximum absorption is related to the effective surface polarity by v*/cm-1 = 90.85 Z + 11,571, where Z is the Kosower polarity measure. Silica surface polarity corresponds to Z = 86-89.
标题化合物（6-NO2-BIPS）具有吸附变色特性，吸附到极性表面时会变色。将吸附在硅胶或硅酸上的6-NO2-BIPS粉末悬浮在甘油中，通过常规吸收光谱法记录吸附质的吸收光谱。最大吸收波数与有效表面极性的关系为v*/cm-1 = 90.85Z + 11571，其中Z是科索韦尔极性度量。二氧化硅表面极性对应于Z = 86 - 89。
