Crystal Structure of Trinuclear Complex of Itterbium (III) 8-HYDROXYQUINOLINATE [YB3(C9H6NO)8・(CH3COO)]・3CHCL3
2009
Elga Silina, Vitaly Belsky, Sergejs Beļakovs, Janis Ashaks, Lucia Pech, Daina Zaruma

A new compound [Yb3(C9H6NO)8⋅ (CH3COO)]⋅3CHCl3 (I) has been synthesized. The complex crystallizes in the monoclinic syngony, space group P21/n: a=18.971(4); b=19.473(4); c=20.914(4) Å; β=100.68(3)°; V=7592(3) Å3; Z=4. The structure of compound I has been determined using the automatic X-ray diffractometer CAD-4 (λMoKα radiation). The structure model has been established by the heavy atom method. Coordinates of itterbium, oxygen, nitrogen, carbon and chlorine atoms have been refined by the least squares method in anisotropic approximation up to the final R factor values R1=0.0397; wR2=0.1024. Three crystallographically independent Yb atoms have distorted antiprism (Yb(1)) and dodecahedral(Yb(2) and Yb(3)) coordination. The Yb(1) atom is coordinated with two oxygen atoms of the acetate anions and with six oxygen atoms of the 8-hydroxyquinolinate anion. The Yb(2) and Yb(3) atoms each are bidentally coordinated with four O atoms and four N atoms from four 8-hydroxyquinolinate anions. Six from eight oxygen atoms of 8-hydroxyquinoline ligand possess both the complexing and bridge atom functions. The neighbouring Yb atoms are bonded with three O atoms from three 8-hydroxyquinolinate anions. The interatomic distances of Yb(2)…Yb(1)…Yb(3) are 3.450(2) and 3.439(2) Å respectively.


Keywords
iterbija kompleksi, 8-oksihinolīns, kristāliskā struktūra

Silina, E., Belsky, V., Beļakovs, S., Ashaks, J., Pech, L., Zaruma, D. Crystal Structure of Trinuclear Complex of Itterbium (III) 8-HYDROXYQUINOLINATE [YB3(C9H6NO)8・(CH3COO)]・3CHCL3. Materials Sciences and Applied Chemistry. Vol.20, 2009, pp.64-73. ISSN 1407-7353.

Publication language
Latvian (lv)
The Scientific Library of the Riga Technical University.
E-mail: uzzinas@rtu.lv; Phone: +371 28399196