List of Articles Cyclic carbodiimides Open Access Article Abstract Page Full-Text 1 - Ab Initio Study of Conformational and Configurational Properties of 1, 3- Diazacyclohepta-1, 2-diene and 1, 3-Diazacycloocta-1, 2-diene Issa Yavari Vahideh Hadigheh-Rezvan Mohsen Dadgar