1 aDepartment of Chemistry, Ferdowsi University of Mashhad, Mashhad P.O. Box 917791436, Iran

2 bDepartment of Chemistry, Georgetown University, Washington, DC 20057, USA


Crystallographic data analyses indicate that  three types of prolinium cations, along with two types of hydrogen  bonding,  produce and stabilize the helical structure of  triprolinium 12-phosphomolybdate. There are similarities between this organic-inorganic compound and peptides/proteins. The stronger “conventional” hydrogen bonds and the less common C-H…O attractions play critical roles in generating and stabilizing the DNA-like network.