Actinide structural studies
Creators
- 1. Warwick Univ., Coventry (UK). Dept. of Chemistry and Molecular Sciences
- 2. UKAEA Atomic Energy Research Establishment, Harwell. Chemistry Div.
Description
The crystal structures of the title complexes, [NpO2(OPPh3)2(NO3)2] (1), [UO2(OPPh3)2(NO3)2] (2), and [NpO2(OPPh3)2Cl2] (3), have been determined using X-ray diffraction methods. Compounds (1) and (2) are isomorphous and isostructural. Their crystals are monoclinic, space group P21/c, with hexagonal-bipyramidal co-ordination about the heavy atoms. The bidentate nitrate groups are trans to each other and bonded to the metal (M-O 2.52-2.54 A), as are the triphenylphosphine oxide ligands (M-O 2.35-2.36 A). The M-O bond lengths in the MO22+ cations (M = Np or U) are 1.739(10) and 1.764(9) A respectively. Compound (3) is monoclinic, space group P21, and exhibits distorted octahedral coordination about neptunium, the trans ligands having Np-Cl lengths of 2.622(14) and 2.645(13) A; for the triphenylphosphine oxide groups, Np-O lengths are 2.261(19) and 2.288(15) A. The NpO22+ cation has Np-O bond lengths of 1.721(16) and 1.751(18) A. Lattice parameters are given. (author)
Additional details
Additional titles
- Subtitle (English)
- Pt.1. Crystal and molecular structures of dinitratodioxobis(triphenylphosphine oxide)neptunium(VI), dinitratodioxobis(triphenylphosphine oxide)uranium(VI), and dichlorodioxo(triphenylphosphine oxide)neptunium(VI)
Publishing Information
- Journal Title
- J. Chem. Soc. (London), Dalton Trans.
- Journal Issue
- no.1
- Series
- J. Chem. Soc. (London), Dalton Trans.
- ISSN
- 0300-9246
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 13661142
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Is Lead record
- Yes
- Descriptors DEI
- BOND ANGLE; BOND LENGTHS; CHEMICAL PREPARATION; CHLORIDES; COORDINATION NUMBER; CRYSTAL LATTICES; LATTICE PARAMETERS; MOLECULAR STRUCTURE; NEPTUNIUM COMPLEXES; NEPTUNYL COMPOUNDS; NITRATES; SPACE GROUPS; TPO; URANYL COMPLEXES; X-RAY DIFFRACTION
- Descriptors DEC
- ACTINIDE COMPLEXES; ACTINIDE COMPOUNDS; CHLORINE COMPOUNDS; COHERENT SCATTERING; COMPLEXES; CRYSTAL STRUCTURE; DIFFRACTION; HALIDES; HALOGEN COMPOUNDS; NEPTUNIUM COMPOUNDS; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; SCATTERING; SYMMETRY GROUPS; SYNTHESIS; TRANSURANIUM COMPLEXES; TRANSURANIUM COMPOUNDS; URANIUM COMPLEXES