Homochiral 1D Helical Chain Based on an Achiral Cu(II) Complex
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Self-assembly of an achiral [Cu(L)] complex produced a homochiral helical chain [Cu(L)]3·2H2O (1) (L = 2-dimethylaminoethyl(oxamato)). Interestingly, complex 1 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 P32. 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 (J = −74.4 cm–1).
创建时间：
2016-02-20
