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Binuclear and chain-structure zinc(II) complexes constructed from 3,4-dimethoxy-trans-cinnamic acid and N-donor

Yi-Long Wang1, Zhu-Jia Shao, Shao-Song Qian

  • 1School of Life Sciences, Shandong University of Technology, Zibo 255049, People's Republic of China.

Acta Crystallographica. Section C, Crystal Structure Communications
|May 1, 2013
PubMed

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When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.
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