Synthesis of intercalation compounds of layered niobates with methylvilogen and their photochemical behavior

Journal Article · · Chemistry of Materials; (United States)

OSTI ID:6492174

Nakato, Teruyuki; Kuroda, Kazuyuki; Kato, Chuzo ^[1]

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1. Waseda Univ., Tokyo (Japan)

Intercalation of methylviologen (1,1'-dimethyl-4,4'-bipyridinium ion) into two layered niobates (K[sub 4]Nb[sub 6]O[sub 17] and HNb[sub 3]O[sub 8]) and the photochemical behavior of the resulting compounds were investigated. UV irradiation of the intercalation compounds caused photoinduced electron transfer from the hosts to the guest; the formation of methylviologen radical cations was observed. This behavior was affected by the structure of the intercalation compounds. The radical cations were less stable in HNb[sub 3]O[sub 8], where they were more densely packed, than in K[sub 4]Nb[sub 6]O[sub 17]. Co-intercalation of photoinactive species with methylviologen significantly stabilized the radical cations in both of the hosts. The differences in the photochemistry apparently arises from structural differences. 13 refs., 7 figs., 3 tabs.

• OSTI ID: 6492174
• Journal Information: Chemistry of Materials; (United States), Journal Name: Chemistry of Materials; (United States) Vol. 4:1; ISSN CMATEX; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ALKALI METAL COMPOUNDS
AZINES
BIPYRIDINES
CATIONS
CHARGED PARTICLES
CHEMICAL PREPARATION
CHEMISTRY
CLATHRATES
ELECTRON TRANSFER
HETEROCYCLIC COMPOUNDS
IONS
LAYERS
NIOBATES
NIOBIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMISTRY
POTASSIUM COMPOUNDS
PYRIDINES
RADICALS
REFRACTORY METAL COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS