List of Articles Hydrogen bonding Open Access Article Abstract Page Full-Text 1 - Investigation of NMR Shielding Tensors of Para-Sulfonato-calix 141 arene Complexation with some of Alkali metal atoms M. Sayadian L. Pishkar F. Mollaamin Open Access Article Abstract Page Full-Text 2 - Ab Initio Quantum Chemical Studies of 15N and 13C NMR Shielding Tensors in Serine and Complexes of Serine- nH2O: Investigation on Strength of the CαH…O Hydrogen bonding in the Amino Acid Residue. M. Monajjemi T. Karimkeshteh F. Mollaamin Open Access Article Abstract Page Full-Text 3 - Studies of Hydrogen Bonding Effects on DiPalmitoyl Phosphatidyl Etanolamine (DPPE) by theoretical Methods A. Nouri M. Monajjemi Open Access Article Abstract Page Full-Text 4 - A Density Functional Theory Study of Structure of Phosphonic Acid M.H. Ghorbani H. Aghaie M. Aghaie Open Access Article Abstract Page Full-Text 5 - DFT Study of Hydrogen Bonding on Calix[8]arene as Nanostructure Compound M. Sayadian K. Zare F. Mollaamin Open Access Article Abstract Page Full-Text 6 - DFT and HF Studies: Geometry, Hydrogen Bonding, Vibrational Frequencies and Electronic Properties of Enaminones and Their Complexes with Transition Metals Kazem Mahanpoor Majid Saghi Mohammad Hosein Bigtan