220475-44-5Relevant academic research and scientific papers
Synthesis, vibrational and emission spectra of some copper(I) complexes of 3- and 4-benzoylpyridine ligands and X-ray crystal structure of [(4-benzoylpyridine)2H]+·I-
Mautner, Franz A.,Goher, Mohamed A.S.
, p. 553 - 559 (1998)
The synthesis and characterization of some copper(I) complexes of the type CuLX, where X = Cl, Br, I, CN and SCN, for L = 3-benzoylpyridine and a new red 1:1 copper(I) iodide complex of 4-benzoylpyridine in addition to a yellow compound; [(4-benzoylpyridine)2H]·I (1) are described. The IR and Raman spectral results suggest bridging halide and pseudohalide groups in the 3-benzoylpyridine complexes and reflect the influence of the protonation of the 4-benzoylpyridine on its vibration frequencies. The yellow complexes display emission spectra with λmax in the region 465-580 nm, whereas the red complex of 4-Bzpy emits at λmax = 631nm. The X-ray structure determination has shown compound (1) to contain a discrete dimeric cation [(4-benzoylpyridine)2H]+ and an iodide anion. In the cation, a centrosymmetric pair of 4-benzoylpyridine is dimerized via a hydrogen bond of the type N ... H ... N with a short N ... N distance of 2.654(11) A. The iodide ion is located at the origin of the unit cell.
