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            | Article Name :  |  |  | MOLECULAR INTERACTIONS AND POLARIZIBILITY CONSTANTS OF SOME SUBSTITUTED COUMARIN COMPLEXES WITH LANTHANIDES METAL ION |  | Author Name :  |  |  | C. B. Talwatkar |  | Publisher :  |  |  | Ashok Yakkaldevi |  | Article Series No. :  |  |  | ROR-12570 |  | Article :  |  |    | Author Profile |  | Abstract :  |  |  | The ultrasonic velocity, density has been measured for the mixture of 6-ethyl7-hydroxy coumarin (E1L1) and 4,6-Dimethyl7-hydroxy coumarin (D1L2) at different concentrations in dioxane. |  | Keywords :  |  |  - acoustic impedance ,experimental data,
 
            
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