Citation:
FENG Xun, SONG Hong-Liang, YE Bao-Xian, HUO Su-Zhen, XIE Shi-Yu, GUO Jin-Zhong. Synthesis, Crystal Structure and Electrochemistry Properties of a Cobalt(Ⅱ) Complex Based on Asymmetry Schiff Base Ligand[J]. Chinese Journal of Structural Chemistry,
2014, 33(6): 897-902.
Synthesis, Crystal Structure and Electrochemistry Properties of a Cobalt(Ⅱ) Complex Based on Asymmetry Schiff Base Ligand
摘要:
A new cobalt(Ⅱ) complex [Co(NO2-salen)2]·1.5H2O containing mono acetalization Schiff base ligand (NO2-salen=N-5-nitro-salicylideneamino ethanato) has been prepared through one-pot template condensation, and has been structurally characterized by elemental analysis, IR spectra and X-ray diffraction. It is formulated as C18H23CoN6O7.5, crystallizes in the hexagonal system, space group of R-3c with α=25.895(18), b=25.895(18), c=35.075(6)Å, γ=120°, V=20368(3)Å and Z=36. The ligand of 5-nitrosalicylaldehyde-ethylene-diamine takes unusual mono asymmetry mode. The Co(Ⅱ) ion exhibits a coordination number of six, and assumes a distorted octahedral geometry with a N2O4 donor set. The neutral monomeric units of [Co(NO2-salen)2]·1.5H2O are linked into a one-dimensional (1D) structure via the intermolecular hydrogen bonds and weak π-π stacking interactions. Cyclic-voltammetry measurement reveals the oxidation and reduction processes for the complex are irreversible in nature.
English
Synthesis, Crystal Structure and Electrochemistry Properties of a Cobalt(Ⅱ) Complex Based on Asymmetry Schiff Base Ligand
Abstract:
A new cobalt(Ⅱ) complex [Co(NO2-salen)2]·1.5H2O containing mono acetalization Schiff base ligand (NO2-salen=N-5-nitro-salicylideneamino ethanato) has been prepared through one-pot template condensation, and has been structurally characterized by elemental analysis, IR spectra and X-ray diffraction. It is formulated as C18H23CoN6O7.5, crystallizes in the hexagonal system, space group of R-3c with α=25.895(18), b=25.895(18), c=35.075(6)Å, γ=120°, V=20368(3)Å and Z=36. The ligand of 5-nitrosalicylaldehyde-ethylene-diamine takes unusual mono asymmetry mode. The Co(Ⅱ) ion exhibits a coordination number of six, and assumes a distorted octahedral geometry with a N2O4 donor set. The neutral monomeric units of [Co(NO2-salen)2]·1.5H2O are linked into a one-dimensional (1D) structure via the intermolecular hydrogen bonds and weak π-π stacking interactions. Cyclic-voltammetry measurement reveals the oxidation and reduction processes for the complex are irreversible in nature.
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