A5048955621- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Lanthanide and Transition Metal Complexes
- Polyoxometalates: Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Magnetism in coordination complexes
- Crystal structures of chemical compounds
- Crystal Structures and Properties
- Chemical Synthesis and Reactions
Chiang Mai University
2019-2024
The major obstacle in using CO2 the cycloaddition reactions with epoxides can be subdued through use of high performance catalysts particularly those efficient at or near ambient temperature and pressure. Performances heterogeneous are, however, subpar compared to homogeneous counterparts although being preferable from practical viewpoint. Heterometallic 3d-4f coordination polymers have offered best opportunity date their possible performances is not yet achieved. Through rational...
New lanthanide coordination polymers, (I) [LnIII(Habtc)(H2O)2]·2H2O (Ln = SmIII, EuIII, GdIII, TbIII, DyIII, HoIII, ErIII, and TmIII), (II) [LnIII(Habtc)(H2O)4]·3H2O (LnIII TmIII, YbIII), (III) [EuIII2(Habtc)2(H2O)6]·2.75H2O (H4abtc 3,3′,5,5′-azobenzenetetracarboxylic acid), were designed synthesized for use as catalysts. The framework structures, phase formation, purity characterized. catalytic performances of [EuIII(Habtc)(H2O)2]·2H2O (Ib) [EuIII(Habtc)(H2O)4]·3H2O (IIb) evaluated based on...
To study the relationship between polymorphism and catalytic activities of lanthanide coordination polymers in cycloaddition reactions CO2 with epoxides, monoclinic triclinic polymorphs [LnIII(NH3–Glu)(ox)]·2H2O, where LnIII = LaIII (I), PrIII (II), NdIII (III), SmIII (IV), EuIII (V), GdIII (VI), TbIII (VII), DyIII (VIII), NH3–Glu– NH3+ containing glutamate, ox2– oxalate, were synthesized characterized. Factors determining polymorphic preference, discrepancy two framework structures,...
Inspired by the catalytic potential of lanthanide coordination polymers 3,3',5,5'-azobenzenetetracarboxylic acid (H4abtc), two new isostructural [Ln2III(Habtc)2(DMSO)4]·DMSO·H2O (LnIII = SmIII (I), EuIII (II), DMSO dimethyl sulfoxide) were synthesized and characterized. Their single-crystal structures elucidated described. Structural transformations II in solid state prompted ligand substitution thermal treatment studied, from which genuine reversible transformation to...
To examine the water-induced photoluminescence turn-on and its potential application in trace water sensing, a new series of [LnIII(dmba)3(H2O)2]·2H2O, where LnIII = LaIII (I), PrIII (II), NdIII (III), SmIII (IV), EuIII (V), GdIII (VI), TbIII (VII), DyIII (VIII), HoIII (IX), ErIII (X), were synthesized using dimethoxybenzoic acid (Hdmba). Their single-crystal structures thermal chemical robustness investigated, effects lanthanide contraction noncovalent interactions discussed. The...
Aiming at ammonia gas detection ambient temperature, phenoxyacetic acid (Hpoa) and 2,5-pyridinedicarboxylic (H2pydc) were employed to construct the isostructural [LnIII(poa)(2,5-pydc)(H2O)2]·3H2O (LnIII = EuIII (I), GdIII (II), TbIII (III)). Their single crystal structures photophysical properties as well triplet state energies of sensitizers characterized. Robustness responses I its composite film with poly(vinyl alcohol) (I/PVA) toward water, ammonia, common volatile organic compounds...