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 00:00:00 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), Vol. 29:3; ISSN 0020-1669
• Country of Publication: United States
• Language: English

Related Subjects

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