Nature of the phase change in solid Ce sub 2 (O sup i Pr) sub 8 ( sup i PrOH) sub 2 , as determined by variable-temperature x-ray diffraction and sup 2 H NMR spectroscopy
Journal Article
·
· Inorganic Chemistry; (United States)
- Univ. of South Carolina, Columbia (USA)
- Rhone-Poulenc, Inc., New Brunswick, NJ (USA)
- Indiana Univ., Bloomington (USA)
The temperature dependence of the unit cell edge lengths of Ce{sub 2}(O{sup i}Pr){sub 8}({sup i}PrOH){sub 2} shows a reversible phase change at about {minus}90C. The availability of single-crystal structure determinations at {minus}155 and +25C reveals a planar centrosymmetric Ce{sub 2}(O{sup i}Pr){sub 2}({sup i}PrOH){sub 2} substructure with hydrogen bonds from alcohol to alkoxide bonded to different metals. While these hydrogens are localized at {minus}155C, they are disordered at 20C. Solid-state variable-temperature {sup 2}H NMR studies reveal that this disorder is dynamic, not static. Line shape analysis permits a determination of the hydrogen position (5.5 off of the O-O line) as well as the frequency of interconversion (>10{sup 6} s{sup {minus}1}) between the two degenerate hydrogen-bonded structures. 5 figs., 13 refs.
- OSTI ID:
- 5564464
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 30:8; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoreduction of cerium (IV) in Ce sub 2 (O sup i Pr) sub 8 ( sup i PrOH) sub 2. Characterization and structure of Ce sub 4 O(O sup i Pr) sub 13 ( sup i PrOH)
Synthesis of arene-soluble mixed-metal Zr/Ce, Zr/Y, and related {l_brace}[Zr{sub 2}(O{sup i}Pr){sub 9}]LnX{sub 2}{r_brace}{sub n} complexes using the dizirconium nonaisopropoxide ligand
Alcohol adducts of alkoxides: Intramolecular hydrogen bonding as a general structural feature
Journal Article
·
Wed May 15 00:00:00 EDT 1991
· Inorganic Chemistry; (United States)
·
OSTI ID:5942467
Synthesis of arene-soluble mixed-metal Zr/Ce, Zr/Y, and related {l_brace}[Zr{sub 2}(O{sup i}Pr){sub 9}]LnX{sub 2}{r_brace}{sub n} complexes using the dizirconium nonaisopropoxide ligand
Journal Article
·
Mon May 15 00:00:00 EDT 2000
· Inorganic Chemistry
·
OSTI ID:20075875
Alcohol adducts of alkoxides: Intramolecular hydrogen bonding as a general structural feature
Journal Article
·
Wed Aug 22 00:00:00 EDT 1990
· Inorganic Chemistry; (USA)
·
OSTI ID:6332068
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CERIUM COMPLEXES
COHERENT SCATTERING
COMPLEXES
CRYSTALS
DATA
DEUTERIUM
DIFFRACTION
EXPERIMENTAL DATA
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
MOLECULAR STRUCTURE
MONOCRYSTALS
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PRASEODYMIUM COMPLEXES
RARE EARTH COMPLEXES
SCATTERING
SPECTRA
STABLE ISOTOPES
X-RAY DIFFRACTION
400201* -- Chemical & Physicochemical Properties
CERIUM COMPLEXES
COHERENT SCATTERING
COMPLEXES
CRYSTALS
DATA
DEUTERIUM
DIFFRACTION
EXPERIMENTAL DATA
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
MOLECULAR STRUCTURE
MONOCRYSTALS
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PRASEODYMIUM COMPLEXES
RARE EARTH COMPLEXES
SCATTERING
SPECTRA
STABLE ISOTOPES
X-RAY DIFFRACTION