Excited-state properties of a diplatinum(II) complex under high pressure
Journal Article
·
· Journal of the American Chemical Society; (USA)
- Tokyo Institute of Technology (Japan)
- Univ. of Tokyo (Japan)
The pressure effects on the relaxation process of excited K{sub 4}(Pt{sub 2}(H{sub 2}P{sub 2}O{sub 5}){sub 4}){center dot}2H{sub 2}O (Pt{sub 2}) crystal have been studied at room temperature. The emission properties such as maximum energy and peak intensity are discussed on the basis of X-ray diffraction study and infrared spectroscopy. Lower energy shifts of the emission energy were observed ({minus}170 and {minus}190 cm{sup {minus}1}/GPa for fluorescence and phosphorescence, respectively), which was interpreted as due to reduction of the intramolecular Pt-Pt distance. The pressure-induced excimer fluorescence appearing at the lower energy side of the normal fluorescence also exhibited a lower energy shift with increasing pressure ({minus}1,000 cm{sup {minus}1}/GPa). This phenomenon was observed only for well-grown Pt{sub 2} crystals.
- OSTI ID:
- 7070016
- Journal Information:
- Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 111:19; ISSN 0002-7863; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200* -- Inorganic
Organic
& Physical Chemistry
CALCULATION METHODS
COMPLEXES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PLATINUM COMPLEXES
PRESSURE EFFECTS
TRANSITION ELEMENT COMPLEXES
360102 -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200* -- Inorganic
Organic
& Physical Chemistry
CALCULATION METHODS
COMPLEXES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PLATINUM COMPLEXES
PRESSURE EFFECTS
TRANSITION ELEMENT COMPLEXES