What is it about?
Different packing patterns of salts f urea and carbamates were analyzed to understand role of anions in generating packing pattern of cationic counterparts. This was studied with an emphasis to understand presence of more than one symmetry independent cation in respective unit cell. The study is based on the principle that the anions can adopt different coordination contributes to control packing patterns.
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Why is it important?
In solid state direction organization of molecules translates to show various solid state properties. Thus, it is mandatory to understand the roles of anions and cations in a packing pattern before discerning a solid state property. This study is one step towards that but with major aim to understand interplay of weak and to electrostatistically guide hydrogen bonds to generate symmetry non-equivalent cationic counterparts guided by anions.
Perspectives
Discerning solid state properties arising from packing having symmetry independent molecules and correlating such property with respect to the conventional packing with symmetric molecules in a systematic manner would be a challenge.
Professor Jubaraj Bikash Baruah
IIT Guwahati
Read the Original
This page is a summary of: Formation of symmetry non-equivalent molecules in urea and carbamate derivatives: the role of anion, CrystEngComm, January 2009, Royal Society of Chemistry,
DOI: 10.1039/b815962a.
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