Complexation and electrochemical study of 1,5-diselena[5]ferrocenophane: X-ray crystal structures of 1,5-diselena[5]ferrocenophane, and silver, mercury complexes

Macrocyclic Se4N2[7,7]ferrocenophane and Se2N[10]ferrocenophane containing benzyl unit: synthesis, complexation, crystal structures, electrochemical and optical properties

“…[67][68][69][70][71]80 The complexation of Cu 2+ and Hg 2+ with L2 gives no detectable third-order NLO property. Although there is no crystal structure obtained for metal complexes of L2, from the coordination mode of L1 and analogous ligands, 26,81 the small cavity size will prevent the formation of effective π-conjugated systems and result in no detectable third-order NLO signal.…”

Two novel macrocyclic polyselenaferrocenophanes: Synthesis, crystal structures and electrochemical study

“…The E ½ value in 1 is À13 (62) mV, which is more negative than that of 1,2,3-triselena [3]ferrocenophane (E ½ = 213 mV) [16]. The observation shows that ferrocene unit in 1 becomes easier to oxidize, meaning the decrease of the ring strain and the interaction between the middle selenium atom in the bridge and (1) 8NaBH 4 (2 [5]ferrocenophane (E ½ = 2 (115) mV) [6], the larger ring size of 1 leads to a little more negative shift. The E ½ value of 2 is 46 (117) mV, which is more positive than that of 1 and 1,5-diselena [5]ferrocenophane.…”

“…In this context, the design and study of polyselenaferrocenophanes is an exciting challenge because of their unique chemical properties resulting from the functionality of the side arm and the possibility working as highly sensitive electrochemical sensors for the soft metal cations. As part of our research on the synthesis, complexation and electrochemical study of macrocyclic polyselenaferrocenophanes, we have reported the complexation and electrochemical study of 1,5-diselena [5]ferrocenophane [6]. However, the ligand's small cyclic cavity means that the ring must undergo a conformational change to allow coordination [3], which results in weak MÁ Á ÁFe through-space interaction [6].…”

“…As part of our research on the synthesis, complexation and electrochemical study of macrocyclic polyselenaferrocenophanes, we have reported the complexation and electrochemical study of 1,5-diselena [5]ferrocenophane [6]. However, the ligand's small cyclic cavity means that the ring must undergo a conformational change to allow coordination [3], which results in weak MÁ Á ÁFe through-space interaction [6]. We report herein the synthesis, characterization and crystallographic study of two novel macrocyclic polyselenaferrocenophane, 1,5,9-triselena[9]ferrocenophane (1) and 1,5,9,21,25,29-hexaselena[9.9]ferrocenophane (2).…”

A novel macrocyclic diselenoether containing naphathalene ring and its Mo(0) tetracarbonyl complex: Synthesis, crystal structures and fluorescence study

“…There is no stable complex isolated that has this kind of selena-macrocycles as a ligand. In our group, a series of macrocyclic polyselena[n]ferrocenophanes have been synthesized and studied, which display strong affinities with soft Lewis metals [8][9][10][11]. In light of this, we now initiate the systematic study of selenamacrocycles incorporating fluorophore.…”