The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)nickel(II), is researched, Molecular C22H38NiO4, CAS is 14481-08-4, about Interactions of some nitrogen, oxygen, and sulfur heterocycles with gadolinium and nickel chelates. A carbon-13 nuclear magnetic resonance spin-lattice relaxation study, the main research direction is gadolinium coordination heterocycle NMR; nickel coordination heterocycle NMR; heterocycle complex magnetic relaxation; pyrrolidine complex magnetic relaxation; THF complex magnetic relaxation; tetrahydrothiophene complex magnetic relaxation; pyrrole magnetic relaxation; furan magnetic relaxation; thiophene magnetic relaxation.Related Products of 14481-08-4.
The interaction of pyrrole, pyrrolidine, furan, THF, thiophene, and tetrahydrothiophene with GdL3 and NiL2 (L = 2,2,6,6-tetramethylheptane-3,5-dionate) was studied by determination of electron-nuclear spin-lattice relaxation times for 13C in natural abundance. The results indicate complex formation between GdL3 and pyrrolidine and THF, and between NiL2 and pyrrolidine, THF, and tetrahydrothiophene. Competition experiments gave the relative affinities of the metal chelates for different ligand donor atoms: N > O > S for GdL3, and N > O ≈ S for NiL2. In the case of NiL2, the relaxation rates deviate largely from the predictions of the Solomon-Bloembergen equation; this was discussed in relation to contact shift measurements.
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