Chelates of molybdenyl with o-hydroxyazomethines (in Russian)
Chelates of dioxomolybdenum(VI) with Schiff bases derived from salicylaldehyde and aliphatic, aromatic, and heterocyclic amines and diamines have been synthesized by ligand exchange and template synthesis methods. Complexes with the general formula MoO/sub 2/L/sub 2/ form of N-alkyl- and N-arylsalicylidenimines (HL). Chelates with molybdenum-ligand ratios equal to 1:1 and 1:2 are realized with heterocyclic azomethines. Bis(salicylidene) diimines form only complexes with a 1:1 composition. The compounds isolated are finely crystalline substances, which predominantly have a yellow color and limited solubility in methanol and dimethyl sulfoxide. On the basis of data from conductometry, UV, IR, and /sup 1/H NMR spectroscopy it has been postulated that the complexes have an octahedral structure with maintenance of the cis configuration of the MoO/sub 2/ group. A dimeric or polymeric structure has been proposed for the 1:1 complexes. The thermal decomposition of the azomethine complexes of molybdenum(VI) under dynamic conditions takes place in two stages and ultimately results in the formation of MoO/sub 3/.
- Research Organization:
- Voroshilovgrad Institute of Mechanical Engineering, USSR
- OSTI ID:
- 6509405
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Vol. 11:7; Other Information: Translated from Koordinatsionnaya Khimiya; 11: No. 7, 918-927(Jul 1985)
- Country of Publication:
- United States
- Language:
- Russian
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MOLYBDENUM COMPLEXES
PYROLYSIS
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
SCHIFF BASES
AMINES
AZO COMPOUNDS
CHELATES
COMPLEXOMETRY
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFRARED SPECTRA
LIGANDS
MOLECULAR STRUCTURE
MOLYBDENUM OXIDES
NMR SPECTRA
PYROLYSIS PRODUCTS
ULTRAVIOLET SPECTRA
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
DECOMPOSITION
IMINES
MOLYBDENUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SPECTRA
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties