X-ray scattering study on amorphous, polynuclear platinum uridine complexes

Autor:	Anneli Oksanen, Ritva Serimaa, Timo Paakkari, Tarja Laitalainen, Sakari Vahvaselkä
Rok vydání:	1993
Předmět:	Small-angle X-ray scattering Scattering Coordination number X-ray chemistry.chemical_element General Chemistry Biochemistry Catalysis Uridine Amorphous solid Crystallography chemistry.chemical_compound Colloid and Surface Chemistry Distribution function chemistry Platinum
Zdroj:	Journal of the American Chemical Society. 115:10036-10041
ISSN:	1520-5126 0002-7863
DOI:	10.1021/ja00075a020
Popis:	The structures of amorphous, polynuclear platinum uridine complexes Pt-green 1 and 2, Pt-violet 3, Pt-blue 4, and Pt-black S were studied by wide and small angle X-ray scattering methods (WAXS and SAXS) both as solids and in H 2 O solution. The results of WAXS experiments showed differences in the degree of order between 1-S in the solid state. The radical distribution functions (RDFs) for Pt complexes 1-5 from WAXS are in accord with a tetranuclear chainlike Pt structure in the solid state on the basis of the results of model calculations. The shortest average Pt-Pt distances varied from 3.00 to 3.08 A for 1-5, respectively. The Pt-N and Pt-O distances were 2.00-2.08 A, and the corresponding coordination numbers were 4.5, 4.8, 4,5, 3.8, and 4.3 for 1-5, respectively
Databáze:	OpenAIRE
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