Wydział Chemii

Michał Babij

Przemysław Starynowicz

Anna Mondry

2011

Journal of Molecular Structure

1006

672-677

10.1016/j.molstruc.2011.10.031

Naukowa

Angielski

Artykuł

The crystal structure of tetraaquahexakis-S(+)-mandelatodineodymium trishydrate was determined by the X-ray diffraction method. The compound crystallizes in the monoclinic space group P2₁ with the following unit cell parameters: a = 10.536(2), b = 16.089(3), c = 15.316(3) Å, β = 97.96(2)°. The structure consists of polymeric [Nd₂(Man)₆(H₂O)₄·3H₂O]_∞ chains (where ManH = S(+)-2-hydroxy-2-phenylacetic acid or S(+)-mandelic acid), with two symmetry independent Nd⁺³ ions. Both neodymium ions are nine-coordinate but differ in their environments. Nd(1) is surrounded by two water molecules, five carboxylate and two hydroxyl oxygen atoms, Nd(2) is coordinated by two water molecules, four carboxylate and three hydroxyl oxygen atoms. Crystals of neodymium mandelate complex were characterized by thermal analysis as well as by IR and UV–vis–NIR absorption spectroscopy.

neodymium, mandelic acid, X-ray structure, UV-vis-NIR-IR spectroscopy, rare earths

https://doi.org/10.1016/j.molstruc.2011.10.031

http://www.elsevier.com