Synthesis,Crystal Structure and Spectroscopic Properties of [2,13‐Bis(1‐naphthalenylmethyl)‐5,16‐dimethyl‐2,6,13,17‐tetraazatricyclo(14,4,01.18,07.12)docosane]copper(II) Diperchlorate Acetonitrile Disolvate |
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| Authors: | Jong‐Ha Choi Prof Dr William Clegg Gary S Nichol |
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| Institution: | 1. Department of Chemistry, Andong National University, Andong 760–749, South Korea;2. School of Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU, U.K |
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| Abstract: | The N‐functionalized macrocyclic ligand 2,13‐bis(1‐naphthalenylmethyl)‐5,16‐dimethyl‐2,6,13,17‐tetraazatricyclo(14,4,01.18,07.12)docosane (L3) and its copper(II) complex were prepared. The crystal structure of Cu(L3)](ClO4)2·2CH3CN was determined by single‐crystal X‐ray diffraction at 150 K. The copper atom, which lies on an inversion centre, has a square planar arrangement and the complex adopts a stable trans‐III configuration. The longer distance 2.081(2) Å] for Cu–N(tertiary) compared to 2.030(3) Å for Cu–N(secondary) may be due to the steric effect of the attached naphthalenylmethyl group on the tertiary nitrogen atom. Two perchlorate ions are weakly attached to copper in axial sites and are further connected to the ligand of the cation through NH ··· O hydrogen bonds N ··· O 3.098 Å]. IR and UV/Vis spectroscopic properties are also described. |
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| Keywords: | IR spectroscopy UV/Vis spectroscopy Copper Macrocyclic ligands trans‐III configuration |
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