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Appl."],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:p>For a connected graph [Formula: see text], the Mostar index is defined as [Formula: see text], where [Formula: see text] (respectively, [Formula: see text]) is the number of vertices of [Formula: see text] closer to [Formula: see text] (respectively, [Formula: see text]) than [Formula: see text] (respectively, [Formula: see text]). In this paper, we determine the first five maximal (respectively, the first five minimal) values of the Mostar index among all phenylene chains with [Formula: see text] hexagons, the corresponding extremal chains are completely characterized, respectively.<\/jats:p>","DOI":"10.1142\/s1793830921500750","type":"journal-article","created":{"date-parts":[[2020,12,20]],"date-time":"2020-12-20T04:53:25Z","timestamp":1608440005000},"source":"Crossref","is-referenced-by-count":8,"title":["Extremal phenylene chains with respect to the Mostar index"],"prefix":"10.1142","volume":"13","author":[{"given":"Hanlin","family":"Chen","sequence":"first","affiliation":[{"name":"College of Computer Engineering and Applied Mathematics, Changsha University, Changsha 410022, P. R. China"}]},{"given":"Hechao","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Mathematical Sciences, South China Normal University, Guangzhou 510631, P. R. 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