Role of Hydrogen Bonding in Azobenzene−Urea Assemblies. The Packing State and Photoresponse Behavior in Langmuir Monolayers

Solid-State Molecular Organization and S

Solid-State Molecular Organization and Solution Behavior of Methane-1,1-Diphosphonic Acid Derivatives of Heterocyclic Amines: The Role of the Topochemical Ring Modification and the Intramolecular Hydrogen Bonds in Monosubstituted Piperid-1-ylmethane-1,1-diphosphonic Acids

✍ Ewa Matczak-Jon; Veneta Videnova-Adrabińska; Agnieszka Burzyńska; Paweł Kafarski 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 308 KB 👁 1 views

## Abstract The crystal structures of 3‐methylpiperid‐1‐ylmethane‐1,1‐diphosphonic (**2**), 4‐methylpiperid‐1‐ylmethane‐1,1‐diphosphonic (**3**), 2‐ethylpiperid‐1‐ylmethane‐1,1‐diphosphonic (**4**), and 2‐methylpiperid‐1‐ylmethane‐1,1‐diphosphonic (**5**) acids have been determined and are discusse