Published June 15, 1990 | Version v1
Journal article Metadata-only

Structural instability of the water molecule in Sr(IO3)2.H2O, a neutron diffraction study

Creators

  • 1. Siegen Univ. (Gesamthochschule) (Germany, F.R.). Anorganische Chemie 1
  • 2. Institut Max von Laue - Paul Langevin, 38 - Grenoble (France)

Description

Strontium diiodate(V) monohydrate, Sr(IO3)2.H2O, Mr=455.44, monoclinic, I2/c, a=8.9003 (6), b=7.748 (1), c=9.6496 (8) A, β=90.230 (8)deg, V=665.47 (9) A3, Z=4, Dx=4.546 (1) Mg m-3, neutron radiation, λ=0.8494 A, μ(calc.)=0.0124 mm-1, F(000)=202.93 fm, T=295 K, R=0.042 for 977 observed unique reflections. The water molecules exhibit strong librational motion perpendicular to the H2O plane, shown by a large anisotropy of the O(4) thermal ellipsoid. The O-H bond length is 0.942 (2) A, the H-O-H angle 114.4 (3)deg and the hydrogen-bond length (H...O) is 1.864 (2) A. (orig.)

Additional details

Publishing Information

Journal Title
Acta Crystallographica. Section C: Crystal Structure Communications
Journal Volume
46
Journal Issue
6
Series
Acta Crystallogr., Sect. C Cryst. Struct. Comm.
Journal Page Range
979-981
ISSN
0108-2701
CODEN
ACSCE

INIS

Country of Publication
Denmark
Country of Input or Organization
Denmark
INIS RN
22005903
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BOND ANGLE; CRYSTAL STRUCTURE; EXPERIMENTAL DATA; HYDRATES; INTERATOMIC DISTANCES; IODATES; LATTICE PARAMETERS; MEDIUM TEMPERATURE; MONOCLINIC LATTICES; MONOCRYSTALS; NEUTRON DIFFRACTION; STRONTIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTALS; DATA; DIFFRACTION; DISTANCE; HALOGEN COMPOUNDS; INFORMATION; IODINE COMPOUNDS; NUMERICAL DATA; OXYGEN COMPOUNDS; SCATTERING

Optional Information

Contract/Grant/Project number
Contract BMFT PFR-D1-54-03-LU1SIE5