Visual recognition of triamines by phenolphthalein derivatives: consideration of the structure of the colored complex.
[structure: see text] A hybrid molecule 1 consisting of phenolphthalein and two crown ether moieties can be used to discriminate the length of linear triamines strictly by color development. The purple color is developed most deeply at -10 degrees C and fades with either an increase or decrease in temperature.
Tsubaki
K
K
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
Hayashi
N
N
Nuruzzaman
M
M
Kusumoto
T
T
Fuji
K
K