2,3, exo,exo 5,6 Tetra­bromobi­cyclo­[2 2 1]­hept 2 ene

a Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, b Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310

Sciences, Erciyes University, 38039 Kayseri, Turkey, b Department of Chemistry, Faculty of Arts and Sciences, I´no¨nu¨ University, 44280 Malatya, Turkey, and c Department of

Sciences, Erciyes University, 38039 Kayseri, Turkey, b Department of Chemistry, College of Sciences, Shiraz University, 71454 Shiraz, Iran, and c Department of Physics, Faculty of

Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University, TR-55139 Samsun, Turkey, and c Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs

Sciences, Erciyes University, 38039 Kayseri, Turkey, b Department of Chemistry, Faculty of Arts and Sciences, InoÈnuÈ University, 44069 Malatya, Turkey, c Department of

a Ondokuz Mayõs University, Arts and Sciences Faculty, Department of Physics, 55139 Samsun, Turkey, and b Fõrat University, Faculty of Arts and Sciences, Department of Chemistry,

a Ondokuz Mayõs University, Arts and Sciences Faculty, Department of Physics, 55139-Samsun, Turkey, b Karadeniz Teknik University, Rize Arts and Sciences Faculty, Department

a Ondokuz Mayõs University, Arts and Sciences Faculty, Department of Physics, 55139 Samsun, Turkey, b Karadeniz Teknik University, Rize Arts and Sciences Faculty, Department