[1,6-Bis(2-pyridylmethyl)-2,5-diazahexane-κ<sup>4</sup><i>N</i>]chlorocopper(II) perchlorate

Kani, Yoshiyuki; Ohba, Shigeru; Kunita, Mami; Nishida, Yoshihiro

doi:10.1107/s0108270100005588

Cited by 4 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Each copper(II) ion in the complex is ®ve-coordinated by one imine N atom from a Schiff base ligand, two terminal Cl À ions and two bridging phenolate O atoms; the CuÁ Á ÁCu separation is 3.141 (2) A Ê . The mean CuÐCl bond length [2.398 (2) A Ê ; Table 1] is a little shorter than the corresponding bond distance [2.421 (2) A Ê ] observed in a similar copper(II) complex (Kani et al, 2000). The fact that the Cu1ÐO1 distances [2.013 (3) A Ê ] is longer than the Cu1ÐO1(Ðx, 1 Ð y, Ðz) distance [1.974 (3) A Ê ] indicates that the trans in¯uence of the Cl Ð ion is greater than that of the Schiff base imine N atom.…”

mentioning

confidence: 87%

Bis{μ-2-[3-(cyclohexylammonio)propyliminomethyl]phenolato}bis[dichlorocopper(II)]

Zhang

Zhu

2004

Acta Crystallogr C

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 87%

Bis{μ-2-[3-(cyclohexylammonio)propyliminomethyl]phenolato}bis[dichlorocopper(II)]

Zhang

Zhu

2004

Acta Crystallogr C

View full text Add to dashboard Cite

show abstract

“…The conformation of the L 1 ligand is deformed by comparison with that found in the closely related Cu II cationic complex including chloride in place of the perchlorate ligand. [41] For instance, the dihedral angle between the pyridine rings is 59.85 (12) Simply by inserting a methylene group in the ligand, a different coordination geometry is stabilized in the solid state: in 2, the Cu II metal ion lies on a glide plane and is six coordinated by four N atoms of the main L 2 ligand and two trans-arranged ClO 4 -ions ( Figure 11). The resulting molecular complex has an octahedral coordination geometry with the main tetragonal distortion from an ideal geometry produced by a strong Jahn-Teller (JT) effect.…”

Section: +mentioning

confidence: 98%

DFT and Experimental Studies of Perchlorate Ion Coordination incis/trans‐Copper(II) Complexes of Tetradentate Pyridyl Ligands

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Related copper(II) complexes with aminopyridine ligands have also been synthesized and characterized (Singh et al, 2017;Kani et al, 2000;Liebov et al, 2011). Potential applications of these complexes include fluorescent sensing of NO.…”

Section: Chemical Contextmentioning

confidence: 99%

“…Like some other Cu II aminopyridine complexes (Singh et al, 2017;Kani et al, 2000;Liebov et al, 2011), the cationic complex consists of a five-coordinate Cu ion in a distorted square-pyramidal geometry.…”

Section: Structural Commentarymentioning

confidence: 99%

{1,1′-Bis[(pyridin-2-yl)methyl]-2,2′-bipiperidyl}(perchlorato)copper(II) perchlorate

2017

View full text Add to dashboard Cite

The title complex, [Cu II (ClO 4 )(mesoPYBP)](ClO 4 ) {PYBP = 1,1 0 -bis[(pyridin-2-yl)methyl]-2,2 0 -bipiperidyl, C 22 H 30 N 4 }, was prepared and found to crystallize with two crystallographically independent complex salt moieties. The metal atoms of the cations adopt a pseudo-square-pyramidal coordination geometry, where the tetradentate aminopyridine ligands (PYBP) are wrapped around the Cu atoms in the equatorial plane. The Cu-O bonds involving an O atom of the coordinating perchlorate anion are approximately perpendicular to the plane. The two remaining non-coordinating perchlorate anions are involved in several C-HÁ Á ÁO hydrogen bonds with the PYBP ligand and balance the total charge of the complex salt. The two crystallographically independent moieties are related to each other via a pseudo-translation along the a-axis direction. Exact translational symmetry is broken by (i) a difference in the conformation of one of the piperidine rings, featuring a chair conformation in one of the cations, and a sterically disfavored boat conformation in the other; and (ii) by modulation of the non-coordinating perchlorate anions. Chemical contextThe design and synthesis of a family of linear tetradentate aminopyridine ligands, featuring a diamine derivative backbone (e.g. 1,2-cyclohexyldiamine or 2,2 0 -dipyrrolidyl) and two picolyl arms attached to the amine nitrogen atoms, have frequently been discussed (Murphy & Stack, 2006;Yazerski et al., 2014). Common examples of linear tetradentate aminopyridine ligands are shown in Fig. 1. The Fe and Mn complexes ISSN 2056-9890 Figure 1 Common examples of linear tetradentate aminopyridine ligands.bearing this type of ligand show good catalytic activity for olefin epoxidation (Lyakin et al., 2012;Mikhalyova et al., 2012), as well as aromatic (Makhlynets & Rybak-Akimova, 2010) and aliphatic (Ottenbacher et al., 2015) C-H activation. Related copper(II) complexes with aminopyridine ligands have also been synthesized and characterized (Singh et al., 2017;Kani et al., 2000;Liebov et al., 2011). Potential applications of these complexes include fluorescent sensing of NO. The copper(II) ion in complexes with an appended fluorophore is readily reduced by nitric oxide with concomitant fluorescence enhancement (Kumar et al. 2013a,b). Structural commentaryThe title compound crystallizes with two crystallographically independent moieties, consisting of a [Cu II (ClO 4 )(meso-PYBP)] {PYBP = 1,1 0 -bis[(pyridin-2-yl)methyl]-2,2 0 -bipiperidyl} cation and another non-coordinating ClO 4Like some other Cu II aminopyridine complexes (Singh et al., 2017;Kani et al., 2000;Liebov et al., 2011), the cationic complex consists of a five-coordinate Cu ion in a distorted square-pyramidal geometry.The tetradentate mesoPYBP ligand surrounds the metal ion in the basal plane (Fig. 2). One of the two remaining octahedral sites is occupied by the oxygen atom of a coordinating perchlorate anion, while the other site remains vacant. Another perchlorate anion in the outer sphere balances the net charge and ...

show abstract

[1,6-Bis(2-pyridylmethyl)-2,5-diazahexane-κ⁴N]chlorocopper(II) perchlorate

Abstract: The title mononuclear copper(II) compound, [CuCl(C(16)H(22)N(4))]ClO(4), shows a slightly tetrahedrally distorted square-pyramidal coordination with the chlorine ligand at the apical position. The directions of the two N-Me bond axes are syn to the Cu-Cl bond.

Cited by 4 publications

References 3 publications

Bis{μ-2-[3-(cyclohexylammonio)propyliminomethyl]phenolato}bis[dichlorocopper(II)]

Bis{μ-2-[3-(cyclohexylammonio)propyliminomethyl]phenolato}bis[dichlorocopper(II)]

DFT and Experimental Studies of Perchlorate Ion Coordination incis/trans‐Copper(II) Complexes of Tetradentate Pyridyl Ligands

{1,1′-Bis[(pyridin-2-yl)methyl]-2,2′-bipiperidyl}(perchlorato)copper(II) perchlorate

Contact Info

Product

Resources

About

[1,6-Bis(2-pyridylmethyl)-2,5-diazahexane-κ4N]chlorocopper(II) perchlorate

Abstract: The title mononuclear copper(II) compound, [CuCl(C(16)H(22)N(4))]ClO(4), shows a slightly tetrahedrally distorted square-pyramidal coordination with the chlorine ligand at the apical position. The directions of the two N-Me bond axes are syn to the Cu-Cl bond.

Cited by 4 publications

References 3 publications

Bis{μ-2-[3-(cyclohexylammonio)propyliminomethyl]phenolato}bis[dichlorocopper(II)]

Bis{μ-2-[3-(cyclohexylammonio)propyliminomethyl]phenolato}bis[dichlorocopper(II)]

DFT and Experimental Studies of Perchlorate Ion Coordination incis/trans‐Copper(II) Complexes of Tetradentate Pyridyl Ligands

{1,1′-Bis[(pyridin-2-yl)methyl]-2,2′-bipiperidyl}(perchlorato)copper(II) perchlorate

Contact Info

Product

Resources

About

[1,6-Bis(2-pyridylmethyl)-2,5-diazahexane-κ⁴N]chlorocopper(II) perchlorate