Crystal structure of the 2:1 complex of mercury(II) chloride with trithiapyridino-12-crown-4 having unusual mercury coordination
| Autor: | Kaliyamoorthy Panneerselvam, Kizakkekoikkal K. Chacko, Edwin Weber, Il-Hwan Suh, Christiane Reutel, Masilamani E. Sobhia |
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| Rok vydání: | 1992 |
| Předmět: |
Stereochemistry
Heteroatom Crystal structure Square pyramidal molecular geometry Inorganic Chemistry Mercury(II) chloride chemistry.chemical_compound Crystallography chemistry X-ray crystallography Materials Chemistry Physical and Theoretical Chemistry Single crystal Cyclophane Monoclinic crystal system |
| Zdroj: | Inorganica Chimica Acta. 194:93-97 |
| ISSN: | 0020-1693 |
| Popis: | The single crystal X-ray analysis of the 1:2 complex between trithiapyridino-12-crown-4 ( 1 ) and HgCl 2 is reported. Crystals of the complex are monoclinic, P 2 1 / n , with a =13.455(5), b =15.627(2), c =8.933(2) A, β=93.42(2)° and D c =2.844 g cm −3 for Z =4. The host macrocycle has an approximate non-crystallographic mirror symmetry. The structure contains Hg in two very different environments. One Hg is fivefold coordinated in distorted square pyramidal geometry using the four heteroatoms of the macroring and an additional chloro atom as ligating sites. The other Hg remains uncoordinated by the macroring but is surrounded by three chloro atoms to form a trigonal-planar geometry. This complex is an example of unique coordination mode around Hg. |
| Databáze: | OpenAIRE |
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