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Updated: Aug 29, 2026
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
Two dimorphs of 5-methylsulfanyl-1H-tetrazole
Natalya Fridman1, Moshe Kapon, Menahem Kaftory
1Department of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Abstract:
5-Methylsulfanyl-1H-tetrazole, C(2)H(4)N(4)S, crystallizes in dimorphic forms; the alpha-form crystallizes at room temperature in the monoclinic crystal system, space group P2(1)/m, and the beta-form crystallizes by sublimation at 423 K in the orthorhombic crystal system, space group Pbcm. In both forms, the molecules occupy crystallographic mirror planes and are connected to one another via N-H...N hydrogen bonds, the amino H atoms being disordered. The two forms differ from one another in their packing; there are polar layers in the alpha-form and non-polar layers in the beta-form.
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