Photoreduction of methylviologen catalyzed by phthalocyanine complexes of yttrium(III) and lanthanoid(III) metals

Journal Article · Wed Jan 24 04:00:00 EST 1990 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00327a040· OSTI ID:6842310

Kasuga, Kuninobu; Takahashi, Seiji; Tsukahara, Keiichi ^[1]; Ohno, Takeshi ^[2]

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1. Shimane Univ., Matsue (Japan)
2. Osaka Univ. (Japan)

The preparation of phthalocyanine complexes of yttrium, samarium, gadolinium, ytterbium, and lutetium is reported. The PcLnAcO complex (Pc = phthalocyanine dianion and AcO = acetate anion) was found to act as the sensitizer for the photoreduction of methylviologen chloride (MVCl{sub 2}) in a methanol solution upon irradiation with visible light. On the basis of data from visible spectrophotometric studies and laser flash-photolysis studies, the observation is made that the photoreduction of metalophthalocyanine complexes proceeds via an oxidative process, and a reaction scheme is proposed. 15 refs., 2 figs.

• OSTI ID: 6842310
• Journal Information: Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 29:2; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
AZINES
BIPYRIDINES
CATALYSIS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
CONVERSION
DATA
DYES
ENERGY CONVERSION
EXPERIMENTAL DATA
GADOLINIUM COMPLEXES
HETEROCYCLIC COMPOUNDS
HYDROGEN PRODUCTION
INFORMATION
LUTETIUM COMPLEXES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMISTRY
PHTHALOCYANINES
PYRIDINES
RARE EARTH COMPLEXES
REDUCTION
SAMARIUM COMPLEXES
SOLAR ENERGY CONVERSION
TRANSITION ELEMENT COMPLEXES
YTTERBIUM COMPLEXES
YTTRIUM COMPLEXES