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Updated: Jul 14, 2026

Synthesis of a Water-soluble Metal–Organic Complex Array
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Synthesis of a Water-soluble Metal–Organic Complex Array

Published on: October 8, 2016

Multiporphyrin coordination arrays based on complexation of magnesium(II) porphyrins with porphyrinylphosphine oxides

Farzad Atefi1, John C McMurtrie, Dennis P Arnold

  • 1Synthesis and Molecular Recognition Program, School of Physical and Chemical Sciences, Queensland University of Technology, GPO Box 2434, Brisbane, 4001, Australia.

Dalton Transactions (Cambridge, England : 2003)
|May 22, 2007
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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Coordination Number and Geometry

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In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
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