Synthesis, characterization, and x-ray structural determinations of technetium(V)-oxo-tetradentate amine oxime complexes

Journal Article · Wed Feb 12 00:00:00 EST 1986 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00224a031· OSTI ID:5742724

Jurisson, S; Schlemper, E O; Troutner, D E; Canning, L R; Nowotnik, D P; Neirinckx, R D

A number of neutral and lipophilic oxo(L)technetium(V) complexes have been synthesized, where L is a tetradentate amine oxime for which 3,3,9,9-tetramethyl-4,8-diazaundecane-2,10-dione dioxime (Pn(AO)/sub 2/) is the prototype. These TcOL complexes have been characterized by their visible-uv spectra, ir spectra, /sup 1/H and /sup 13/C NMR spectra, fast atom bombardment (FAB) mass spectra, and x-ray diffraction studies. The x-ray crystal structures of four of these complexes show them to be mono(oxo)technetium(V) species with the oxo group situated at the apex of a square pyramid and the technetium lying an average of 0.68 A above the plane defined by the four nitrogen atoms of the tetradentate amine oxime. In each case the tetradentate amine oxime ligand loses three protons on coordination to the technetium(V) center, resulting in an overall charge of zero for the complex, multiple bonding between the amide nitrogens and the technetium, and intramolecular hydrogen bonding between the oxime oxygens. The space constants are reported for the complexes.

• Research Organization: Univ. of Missouri, Columbia
• OSTI ID: 5742724
• Journal Information: Inorg. Chem.; (United States), Vol. 25:4
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMINES
CHEMICAL PREPARATION
STRUCTURAL CHEMICAL ANALYSIS
X-RAY EMISSION ANALYSIS
OXIMES
TECHNETIUM COMPLEXES
CARBON 13
EXPERIMENTAL DATA
NMR SPECTRA
PROTONS
BARYONS
CARBON ISOTOPES
CHEMICAL ANALYSIS
COMPLEXES
DATA
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HYDROXY COMPOUNDS
INFORMATION
ISOTOPES
LIGHT NUCLEI
NONDESTRUCTIVE ANALYSIS
NUCLEI
NUCLEONS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SPECTRA
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)