A zinc(II) complex of N-confused calixphyrin (isoporphyrin) (2-Zn) has been synthesized and the structure was revealed by 1H NMR and X-ray analyses. The atomic distance between zinc metal and the inner-core carbon was about 0.2 Å longer compared with that of zinc(II) N-confused porphyrin complexes, suggesting the weaker side-on η1-coordination with the inner-core-carbon in 2-Zn.
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