Synthesis of Polyphenylene Dendrimers Related to “Cubic Graphite”
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https://figshare.com/articles/dataset/Synthesis_of_Polyphenylene_Dendrimers_Related_to_Cubic_Graphite_/3339787
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资源简介:
Four large, 6-fold symmetric, polyphenylene hydrocarbons have been prepared by short syntheses
that chiefly employed alkyne trimerization, palladium-catalyzed coupling, and Diels−Alder reactions. The
two largest of these molecules, hexakis[4‘-(pentaphenylphenyl)biphenyl-4-yl]benzene (4, C294H198) and
hexakis[4‘-(2,3,4,5-tetraphenylphenyl)biphenyl-4-yl]benzene (5, C258H174) are substructures of “phenylogous
cubic graphite”, and the other two, hexakis(2‘,3‘,4‘,5‘,6‘-pentaphenylbiphenyl-4-yl)benzene (26, C258H174)
and hexakis(2‘,3‘,4‘,5‘-tetraphenylbiphenyl-4-yl)benzene (25, C222H150) are strongly pitched, six-bladed
molecular propellers. The X-ray crystal structure of compound 26 has also been determined; dendrimer 26
is at present the largest crystallographically characterized hydrocarbon.
创建时间:
2016-05-07



