synthesis and crystal structure of 9-(4,6-dichloro-1,3,5-triazin-2-yl)-9h-carbazole合成和晶体结构的9 -(4 6-dichloro-1 5-triazin-2-yl)9 h-carbazole.pdf

Crystals 2011, 1, 28-33; doi:10.3390/cryst1020028 OPEN ACCESS crystals ISSN 2073-4352 /journal/crystals Communication Synthesis and Crystal Structure of 9-(4,6-dichloro-1,3,5-triazin- 2-yl)-9H-carbazole Aamer Saeed 1, *, Madiha Kazmi 1, Shahid Ameen Samra 1,2 and Ulrich Flörke 3 1 Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan 2 Department of Chemistry, Kohat University of Science and Technology (KUST), Kohat 26000, Pakistan 3 Department Chemie, Fakultät fur Naturwissenschaften, Universität Paderborn, Warburgerstrasse 100, D-33098 Paderborn, Germany * Author to whom correspondence should be addressed; E-Mail: aamersaeed@; Tel.: +92-51-9064-2128; Fax: +92-51-9064-2241. Received: 31 March 2011; in revised form: 19 April 2011 / Accepted: 22 April 2011 / Published: 26 April 2011 Abstract: A carbazole-triazine hybrid was prepared by addition-elimination between carbazole and 2,4,6-trichlorotriazine in the presence of base. The compound shows intensely blue fluorescence both in solution and solid state when irradiated with UV- radiation. The structure of (3) was supported by the spectroscopic data and unambiguously confirmed by the single crystal X-ray diffraction data. It was crystallized in the monoclinic space group C2/c with unit cell dimensions a = 20.280(3), b = 8.0726(14), c = 16.005(3) Å, α = γ = 90°, β = 98.947(3)°, V = 2588.3(8) ų, Z = 8. Keywords: carbazole-triazine hybrid; fluorescence; crystal structure 1. Introduc