Crystal structure of a three-dimensional neodymium(III) coordination polymer, [Nd2(H2O)6(glutarato)(SO4)2] n

Saranphong Yimklan; Yothin Chimupala; Sutsiri Wongngam; Nippich Kaeosamut

doi:10.1107/S2056989022000159

Crystal structure of a three-dimensional neodymium(III) coordination polymer, [Nd₂(H₂O)₆(glutarato)(SO₄)₂] _n

Acta Crystallogr E Crystallogr Commun. 2022 Jan 11;78(Pt 2):159-163. doi: 10.1107/S2056989022000159. eCollection 2022 Jan 1.

Authors

Saranphong Yimklan¹, Yothin Chimupala², Sutsiri Wongngam¹, Nippich Kaeosamut¹

Affiliations

¹ Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
² Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.

Abstract

A three-dimensional coordination polymer, poly[hexa-aqua-(μ₄-glutarato)bis(μ₃-sulfato)-dineodymium(III)], [Nd₂(glutarato)(SO₄)₂(H₂O)₆] _n (glutarato^2- = C₅H₆O₄ ^2-), 1, consisting of cationic {Nd₂(H₂O)₆(SO₄)₂} _n ²ⁿ⁺ layers linked by bridging glutarate ligands, was synthesized by the microwave-heating technique within few minutes. The crystal structure of 1 consists of two crystallographically independent TPRS-{Nd^IIIO₉} (TPRS is tricapped trigonal-prismatic geometry) units that form an edge-sharing dinuclear cluster inter-connected to neighbouring dimers by the μ₃-SO₄ ^2- anions, yielding a cationic two-dimensional {Nd₂(H₂O)₆(SO₄)₂} _n ²ⁿ⁺ sheet. Adjacent cationic layers are then linked via the μ₄-glutarato^2- ligands into a three-dimensional coordination network. Strong O-H⋯O hydrogen bonds are the predominant inter-action in the crystal structure.

Keywords: coordination polymer; crystal structure; glutarate; lanthanide.

Grants and funding

This work was funded by Faculty of Science, Chiang Mai University; Development and Promotion of Science and Technology Talent Project (DPST) through a research fund for graduates with first placement; CMU Junior Research Fellowship Program.