Syntheses, structures, and luminescence of three new lanthanide carboxylate complexes

ABSTRACT

The syntheses, luminescence and structures of {[Ln(L)₃(2,2′-bipy)]_n·H₂O} (Ln = Y(1), Yb(2), and Er(3)) (3-(2-hydroxyphenyl)propanoic acid (HL)), determined by single-crystal X-ray diffraction, are reported.The structural determinations indicated that compounds 1–3 have similar dimer with six carboxylate bridges; the adjacent dimer can be further linked into two-dimensional (2D) sheets via the hydrogen (H) bond interactions. Furthermore, the luminescent properties of compound 2 showed the mild emissive feature.

KEYWORDS:

• Carboxylic acid
• structure
• photoluminescence

Funding

The authors acknowledge financial assistance from Sichuan University of Science and Engineering (nos. 2015PY03, 2014RC34, 2015RC26 and 2015RC29), the Education Committee of Sichuan Province (nos. 15ZB0222, 15ZB0214, 17ZA0264) and the Project of Zigong Science & Technology (No. 2016HG06), the Student's Platform for Innovation and Entrepreneurship Training Program (201510622034).