Search
Solvothermal synthesis and structural characterization of three polyoxotitanium-organic acid clusters
Abstract
Three new titanium oxo-clusters Ti4O2(OiPr)10(OOCPhMe)2 (I), Ti6O4(OEt)8(OOCPhMe)8 (II) and Ti6O6(OEt)6(OOCCHPh2)6 (III) were obtained by easy one-step solvothermal reactions of titanium(IV) isopropoxide, alcohols and carboxylic acids. The three compounds were characterized by single-crystal and powder X-ray diffraction, TGA/DSC, optical and electron microscopy, and FTIR and NMR spectroscopy. X-ray powder diffraction and spectroscopy confirmed the purity of the compounds. Structural analysis indicates that in all compounds the titanium(IV) ions are six-coordinated (distorted octahedra). (I) is a tetranuclear complex containing a Ti4(m4-O)(m2-O) core, which is linked by two (m2- OOCPhMe), four (m2-OiPr) and six OiPr ligands. (II) and (III) are hexanuclear complexes with different cores, respectively Ti6(m3-O)2(m2-O)2 and Ti6(m3-O)6. The coordination sphere of the Ti atoms is filled by eight (m2-OOCPhMe), two (m2-OEt) and six OEt in (II) and six (m2-OOCHPh2) and six OEt in (III). Different steric hindrance of substituents attached to the carboxyl group or different concentrations lead to three main different cluster geometries with two ligands. The tetranuclear and the hexanuclear clusters were obtained with the OOCPhMe ligand, while the hexagonal prism cluster was obtained with the OOCCHPh2 ligand. Hirshfeld surface calculations indicated that the packing is driven by C–O/H–C weak hydrogen bonds. The clusters can be used as molecular models of organic molecules bonded to titania surface, used in organic photovoltaic (dye sensitized solar cells) or other optoelectronic applications.
Citations
-
1
CrossRef
-
0
Web of Science
-
1
Scopus
Authors (7)
-
Marco Milanesio prof.
-
Luca Palin
-
Eleonora Conterosito dr
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1039/d0ra09691a
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
RSC Advances
no. 11,
pages 25068 - 25078,
ISSN: 2046-2069 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Kazimierczuk K., Milanesio M., Dołęga A., Palin L., Walencik M., Jurkowski M., Conterosito E.: Solvothermal synthesis and structural characterization of three polyoxotitanium-organic acid clusters// RSC Advances -Vol. 11,iss. 40 (2021), s.25068-25078
- DOI:
- Digital Object Identifier (open in new tab) 10.1039/d0ra09691a
- Verified by:
- Gdańsk University of Technology
seen 83 times
Recommended for you
Hydrothermal reactions: From the synthesis of ligand to new lanthanide 3D-coordination polymers
- F. F. d. Silva,
- C. A. F. d. Oliveira,
- E. H. L. Falcao
- + 5 authors
A Series of Novel 3D Coordination Polymers Based on the Quinoline-2,4-dicarboxylate Building Block and Lanthanide(III) Ions—Temperature Dependence Investigations
- D. Vlasyuk,
- R. Łyszczek,
- M. Liliana
- + 3 authors