sup 113 Cd shielding tensors of cadmium compounds. 5. Single-crystal studies of the dimer of diaquobis(2-hydroxybenzoato)cadmium(II) and tetrakis(4-picoline)(nitrato-O,O prime )(nitrato-O)cadmium(II)

Journal Article · Wed Feb 07 04:00:00 EST 1990 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00328a041· OSTI ID:7121458

Kennedy, M A; Ellis, P D ^[1]

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1. Univ. of South Carolina, Columbia (USA)

The orientation of the {sup 113}Cd chemical shielding tensors in single crystals of the dimer of diaquobis(2-hydroxybenzoato)cadmium(II), i.e. Cd-salicylate, and tetrakis(4-picoline)(nitrato-O,O{prime})(nitrato-O)cadmium(II), i.e. Cd-picoline, has been determined. The isotropic chemical shift was determined to be {minus}31 ppM for Cd-salicylate and +11 ppM for Cd-picoline. The space group symmetry of the Cd-salicylate crystal generates two magnetically distinct cadmium lattice sites. The assignment of each experimentally determined tensor to its respective lattice site was not possible due to the special geometry of the ligands in the lattice, which is discussed in the text. However, the two possible orientations differ only slightly and it is therefore possible to interpret the orientation with respect to the ligand identity and geometry. In either case, the most deshielded element is oriented nearly perpendicular to a plane containing two water oxygen atoms. The most shielded element is oriented nearly perpendicular to a pentagonal best least-squares (BLS) plane defined by two pairs of bidentate benzoate oxygen atoms and one monodentate benzoate oxygen atom. The crystal of Cd-picoline generates two crystallographically distinct cadmium sites in the lattice. Two methods were used independently to assign the two experimentally determined tensors to each lattice site. 22 refs., 12 figs., 5 tabs.

• OSTI ID: 7121458
• Journal Information: Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 29:3; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
AZINES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CADMIUM 113
CADMIUM COMPLEXES
CADMIUM ISOTOPES
CHEMICAL SHIFT
COMPLEXES
DATA
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE EFFECTS
ISOTOPES
NITRATES
NITROGEN COMPOUNDS
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXYGEN COMPOUNDS
PICOLINES
PYRIDINES
RADIOISOTOPES
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES