2 research outputs found
Homochiral 1D Helical Chain Based on an Achiral Cu(II) Complex
Self-assembly of an achiral [Cu(L)] complex produced
a homochiral
helical chain [Cu(L)]<sub>3</sub>·2H<sub>2</sub>O (<b>1</b>) (L = 2-dimethylaminoethyl(oxamato)). Interestingly, complex <b>1</b> obtained in our laboratory exhibits only a left-handed helical
chain without any chiral source. Single-crystal X-ray analysis revealed
the absolute structure and homochirality of its helical chain structure
in the space group of <i>P</i>3<sub>2</sub>. Solid-state
circular dichroism (CD) spectra confirmed the high enantio excess
of the crystals obtained in different synthesis batches. Magnetic
susceptibility measurements reveal a relatively strong intrachain
antiferromagnetic interaction between Cu(II) centers via an oxamato
bridge (<i>J</i> = −74.4 cm<sup>–1</sup>)
Homochiral 1D Helical Chain Based on an Achiral Cu(II) Complex
Self-assembly of an achiral [Cu(L)] complex produced
a homochiral
helical chain [Cu(L)]<sub>3</sub>·2H<sub>2</sub>O (<b>1</b>) (L = 2-dimethylaminoethyl(oxamato)). Interestingly, complex <b>1</b> obtained in our laboratory exhibits only a left-handed helical
chain without any chiral source. Single-crystal X-ray analysis revealed
the absolute structure and homochirality of its helical chain structure
in the space group of <i>P</i>3<sub>2</sub>. Solid-state
circular dichroism (CD) spectra confirmed the high enantio excess
of the crystals obtained in different synthesis batches. Magnetic
susceptibility measurements reveal a relatively strong intrachain
antiferromagnetic interaction between Cu(II) centers via an oxamato
bridge (<i>J</i> = −74.4 cm<sup>–1</sup>)