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Crystal Structure of 4-(2-chlorophenyl)-3-(4-methoxyphenyl)-1,2,4-triazole-5-thione

✍ Scribed by D. Kumaran; M.N. Ponnuswamy; G. Jayanthi; V.T. Ramakrishnan; K. Panneerselvam; M. Soriano-Garcia

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
66 KB
Volume
35
Category
Article
ISSN
0232-1300

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✦ Synopsis

The title compound (C 15 H 12 N 3 OSCl) crystallizes in the monoclinic space group P2 1 /n with a = 11.211( 3), b = 8.106(2), c = 17.494(4) Γ…, Ξ² = 104.49(2)ΒΊ, V = 1539.2(7) Γ… 3 , Z = 4, D cal = 1.371 Mg/m 3 at T = 293 K. The structure was solved by direct methods and refined by full-matrix least-squares procedures to final R = 0.046 and wR = 0.127 using 2185 reflections. The triazole ring is planar. The chlorophenyl ring is approximately perpendicular to the triazole ring whereas methoxy phenyl ring makes an angle of 154.2(1)ΒΊ with it. The structure is stabilized by N-H...S type of hydrogen bonds in addition to van der Waals forces.

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free from isotetrasilane). Results of determinations with isotetrasilane will be published later. Combustion in a calorimetric bomb is suitable for disilane, which is readily condensed, and for tri-and tetrasilanes, which are liquids [4]. On account of its low b.p. (-1 11.6 "C), however, SiH4 could