Synthesis, structural characterization and electrochemical recognition of metal ions of two new ferrocenylhydrazone‐based receptors

Abstract

Two new ferrocenylhydrazone-based receptors FcL 1 and FcL 2 were prepared and the X-ray crystal structure of FcL 1 was described. The electrochemical studies reveal that the receptor FcL 1 is responsive to Hg 2+ and Cr 3+ , whereas, receptor FcL 2 only responsive to Hg 2+ . The maximum electrochemical shift of FcL 1 for Cr 3+ is about 56 mV.

Crystal structure of 1,1-diacetylferrocene dihydrazone

“…deviations are 0.012, 0.026 and 0.018, 0.027 for the two crystallographically independent molecules, respectively) and are inclined relative to the Cp rings at 13.99 (15)°, 9.17 (16)° and 6.83 (17)°, 14.59 (15)° for the two crystallographically independent molecules, respectively. The Fe-C distances are as expected for a ferrocene derivative, ranging from 2.035 (3)Å to 2.065 (2)Å, with an average of 2.050 (3)Å and 2.046 (3)Å (for the two crystallographically independent molecules, respectively), which agree well with those reported for most of ferrocene derivatives (Xiao et al, 1999;Fang et al, 2001;Lopez et al, 2003;Zhang et al, 2006;Zhou et al, 2007;Qiao et al, 2009).…”

“…For a new catalytic olefination reaction and synthesis of 1,1diacetylferrocene dihydrazone, see: Korotchenko et al (2001); Nenajdenko et al (2004); Abd-Elzaher et al (2005). For related compounds, see: Xiao et al (1999); Fang et al (2001); Lopez et al (2003); Zhang et al (2006); Zhou et al (2007); Qiao et al (2009).…”

Synthesis, studies and electrochemical of complexes hydrazones containing a ferrocene fragment: a short review

“…This proves that the ligands have a selective response sensitivity of the receptor ions to which they are subjected (10) . Few electrochemical sensors of the Mg 2+ ion and ionic species exist in the solid state (12), but detection of the Mg 2+ ion by chemo sensors exists selectively ( 13), (14).…”

Synthesis of Ferrocenyl-Based Unsymmetrical Azines via a Simple Reaction of Aldehydes with Ketone-Derived N-Tosyl Hydrazones and the Evaluation of the Extent of Conjugation in the Molecule

“… a Reaction conditions: aryl aldehydes 1a – g (0.5 mmol), ferrocenyl ketone derived N -tosyl hydrazones 4a–c (0.25 mmol), PPh 3 (1 mmol), LiO t Bu (0.55 mmol), dioxane (5 mL), 90 °C, 16 h. Isolated yields. The compounds 5a , 5i , and 5k have been reported. …”