Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

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)
DOI:https://doi.org/10.1021/ic00008a010· OSTI ID:5564464
;  [1]; ;  [2]; ; ;  [3]
  1. Univ. of South Carolina, Columbia (USA)
  2. Rhone-Poulenc, Inc., New Brunswick, NJ (USA)
  3. Indiana Univ., Bloomington (USA)
+ Show Author Affiliations

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)
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