RT journal article T1 Water mediated self assembly of 5-(2-benzoimidazole-1-yl-ethoxy)-3-methyl- 1-phenyl-1H-pyrazole-4-carboxylic acid methyl ester through CAH O and OAH N interactions A1 Srivastava, Priyanka A1 Prakash Singh, Ved A1 Kumar Tewari, Ashish A1 Puerta Vizcaino, María del Carmen A1 Valerga Jiménez, Pedro Sixto A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica K1 Weak interactions K1 Polymorph K1 Spectroscopy K1 DFT K1 X-ray K1 NMR AB Single crystal X-ray structure analysis of 5-(2-benzoimidazole-1-yl-ethoxy)-3-methyl-1-phenyl-1H-pyrazole- 4 carboxylic acid methyl ester (2).0.5H2O provided experimental proof for H O@C, CAH OAH and HAO N interactions. The embedded water molecule bridges between molecules 2 via non-covalent interactions. Thus this molecule behaves as a preorganized host molecule for water, presenting a minimum ring-size molecular environment for water binding. Single crystal X-ray structure analysis of 5-(2-benzoimidazole-1-yl-ethoxy)-3-methyl-1-phenyl-1H-pyrazole-4-carboxylic acid methyl esterhemihydrate provided experimental proof for six hydrogen bonds by one molecule of water. The embedded water molecule bridges six molecules by two types of hydrogen bonding. Theoretical calculations showed that the conformation of the bicyclic hetero-ring alters only slightly due to the presence of the water molecule. Thus this organic molecule behaves as a very interesting preorganized host molecule for water, presenting maximum binding environment for water binding. PB Elsevier YR 2012 FD 2012 LK http://hdl.handle.net/10498/20427 UL http://hdl.handle.net/10498/20427 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 15-nov-2026