Syntheses, structures and properties of a series of photochromic hybrids based on Keggin tungstophosphates

Journal Article · Fri May 15 04:00:00 EDT 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.01.037· OSTI ID:21370375

Lizhi, Zhang ^[1]; Wen, Gu ^[2]; Bing, Li ^[1]; Meiling, Liu ^[2]

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1. School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore)
2. Department of Chemistry, Nankai University, Tianjin 300071 (China)

Three inorganic-organic hybrids based on Keggin tungstophosphates and lanthanides, [Pr(NMP){sub 6}(PW{sub 12}O{sub 40})]{sub n} (1), [Eu(NMP){sub 6}(PW{sub 12}O{sub 40})]{sub n} (2), and [Er{sub 2}(NMP){sub 12}(PW{sub 12}O{sub 40})][PW{sub 12}O{sub 40}] (3) (NMP=N-methyl-2-pyrrolidone), have been synthesized and characterized by elemental analysis, IR, UV-vis, and single-crystal X-ray diffraction. Compounds 1 and 2 exhibit 1D infinite zigzag chain structures, while compound 3 exhibits an ionic asymmetric structure due to lanthanide contraction. The three compounds are all photochromic. The magnetic susceptibility for 1 measured over the range 2-300 K shows that there is the dominant antiferromagnetic interaction in the compound. The results of luminescent properties show that compound 2 displays an interesting selectivity for Zn{sup 2+} ions. - Graphical Abstract: A series of photochromic hybrids based on Keggin tungstophosphates and lanthanides have been synthesized and characterized by elemental analysis, IR, UV-vis, and single-crystal X-ray diffraction. Their photochromic, magnetic, and luminescent properties have been studied.

• OSTI ID: 21370375
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 5 Vol. 182; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMIDES
ANTIFERROMAGNETISM
AZOLES
CHARGED PARTICLES
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
EMISSION
ERBIUM COMPOUNDS
EUROPIUM COMPOUNDS
HETEROCYCLIC COMPOUNDS
IONS
LACTAMS
LUMINESCENCE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MONOCRYSTALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHOTON EMISSION
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PYRROLES
PYRROLIDONES
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SYNTHESIS
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTOPHOSPHATES
X-RAY DIFFRACTION
ZINC IONS