Analisis Hubungan Nilai Indeks Zagreb dengan Titik Didih dan Kestabilan Senyawa Kerangka Dasar Calamenene
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M. Ibnu Sabil(1)
Program Studi Kimia, Universitas Mataram
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Miftahurrahman Miftahurrahman(2)
Program Studi Matematika, Universitas Mataram
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I Gede Adhitya Wisnu Wardhana(3)
Program Studi Matematika, Universitas Mataram
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Ni Komang Tri Dharmayani(4*)
Program Studi Kimia, Universitas Mataram
(*) Corresponding Author
Abstract
A new compound, dysoxyphenol, isolated from Dysoxylum densiflorum, has a
calamenene-based framework. The structure of dysoxyphenol is classified as a sesquiterpene. This
study discusses the relationship between Zagreb Index values and the physical properties and
stability of two compounds: calamenene and dysoxyphenol. The Zagreb Index, consisting of the
first and second indices, is used to measure the structural stability of a graph through the sum of
squared vertex degrees. The objective of this analysis is to determine the Zagreb Index values for
calamenene and dysoxyphenol, to measure the boiling points and stability of the compounds. This
analysis was carried out by examining the structures of calamenene and dysoxyphenol. The obtained
structures were then analyzed graphically. The results of this study show that the first and second
Zagreb Index values for calamenene are 262 and 340, which are smaller compared to the first and
second Zagreb Index values for dysoxyphenol, which are 264 and 350, respectively. This indicates
that calamenene has a lower boiling point than dysoxyphenol and is more stable than dysoxyphenol.
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