So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Hogue, Floyd; Frye, Herschel researched the compound: 1-Piperidineacetic Acid( cas:3235-67-4 ).Synthetic Route of C7H13NO2.They published the article 《Palladium(II) and platinum(II) complexes of some cyclic tertiary amino acids》 about this compound( cas:3235-67-4 ) in Inorganic and Nuclear Chemistry Letters. Keywords: platinum pyrrolidineacetate complex stability; palladium pyrrolidineacetate complex stability; amino acid platinum complex stability; pyrrolidineacetate palladium complex stability; piperidineacetate palladium complex stability. We’ll tell you more about this compound (cas:3235-67-4).
Pd2+ and Pt2+ complexes with 1-pyrrolidineacetic (PyrAA), 1-piperidineacetic (PipAA), and hexahydro-1-azepineacetic (HexAA) acids were prepared and tentative structures assigned. Ligand ionization constants (pKa) are: PipAA 2.18, 10.19; PyrAA 2.41, 10.49; HexAA 2.20, 10.61 at 25 ± 0.1.degree.. Complex stability constants (Ktotal) are: Pd(PipAA)2 5.2 × 1019; Pt(PipAA)2 2.7 × 1017; Pd(PyrAA)2 1.7 × 1021; Pt(PyrAA)2 7.5 × 1019; Pd(HexAA)2 2.8 × 1020; Pt(HexAA)2 5.7 × 1018. The PipAA and PyrAA complexes are apparently cis while theHexAA complexes are trans since the former crystallize as needles and the latter as plates and the metal-N ir stretch occurs at 550 cm-1 for the HexAA complexes and at 525 cm-1 for PipAA complexes.
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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem