Synthesis and structure of a 1:2 addition compound of mercuric chloride with 6-amino-1,3-dimethyl-5-formyluracil

Autor:	L. E. Garcia-Megias, A. Garcia-Rodriguez, André L. Beauchamp, Juan M. Salas-Peregrín, E. Colacio-Rodriguez, Michel Simard
Rok vydání:	1989
Předmět:	Hydrogen bond Stereochemistry Chemistry Ligand Chloride Adduct Inorganic Chemistry Bond length Crystallography symbols.namesake Materials Chemistry medicine symbols Molecule Physical and Theoretical Chemistry van der Waals force medicine.drug Monoclinic crystal system
Zdroj:	Inorganica Chimica Acta. 156:149-153
ISSN:	0020-1693
DOI:	10.1016/s0020-1693(00)90381-5
Popis:	Crystals of the adduct belong to the monoclinic P21/c space group with a=10.606(1), b=14.829(1), c=13.498(1) A, β=111.63(1)° and Z=4. The structure was refined on 1539 observed Mo K α reflections to R=0.026. The unit cell contains ligands and linear HgCl2 molecules packed in an arrangement optimizing interligand van der Waals contacts and HgO secondary binding. The HgCl2 molecule deviates slightly from linearity (ClHgCl=175.5°) with a mean bond length of 2.292 A. Both independent ligands have their formyl oxygen retained on the side of the NH2 group by hydrogen bonding. Near the plane perpendicular to the HgCl bonds are found, around each Hg, one carbonyl O2 and three formyl oxygens with Hg···O distances ranging from 2.716 to 3.011 A. The compound dissociates into HgCl2 and free ligand when dissolved in Me2SO.
Databáze:	OpenAIRE
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