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Ida Puji Astuti Maryono Putri
Austrian-Indonesian Centre for Computational Chemistry, Universitas Gadjah Mada, Yogyakarta 55281
Chemical Engineering, Chemistry & Bioengineering Chemistry

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QUANTITATIVE STRUCTURE AND ACTIVITY RELATIONSHIP ANALYSIS OF 1,2,4-THIADIAZOLINE FUNGICIDES BASED ON MOLECULAR STRUCTURE CALCULATED BY AM1 METHOD Mudasir Mudasir; Iqmal Tahir; Ida Puji Astuti Maryono Putri
Indonesian Journal of Chemistry Vol 3, No 1 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.533 KB) | DOI: 10.22146/ijc.21904

Abstract

Quantitative structure-Activity relationship (QSAR) analysis of fungicides having 1,2,4-thiadiazoline structure based on theoretical molecular properties have been done. Calculation of the properties was conducted by semiempirical method AM1 and the activity of the compounds was taken from literature. Relationship analysis between fungicides activity (pEC50) and molecular properties was done using SPSS program. The QSAR analysis gave the best model as follows: pEC50 = 3.842 + (1.807x10-4) ET + (5.841x10-3) Eb - (5.689x10-2) DHf  -0.770 log P + 1.144 a - 0.671 m + 9.568 GLOB - (5.54x10-2) MR. n=19   r=0.917   SE=0.216   Fcal/Ftable=2.459   PRESS=0.469. The best model obtained was then used to design and predict the fungicides activity of new compounds derived from 1,2,4-thiadiazoline.
Co-Authors Iqmal Tahir Mudasir Mudasir