Coordination Modes of <i>Para</i>-Substituted Benzoates Towards Divalent Copper Centers in the Presence of Diimines
The coordination modes of several <i>para</i>-substituted benzoates towards a copper(II) center is investigated in the presence of α-diimines. The coordination environment of the metal ion also includes nitrogen atoms from 1,10-phenanthroline (phen) or 2,2′-bipyridine (bipy) and, occasio...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
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| Series: | Inorganics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6740/12/12/301 |
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| Summary: | The coordination modes of several <i>para</i>-substituted benzoates towards a copper(II) center is investigated in the presence of α-diimines. The coordination environment of the metal ion also includes nitrogen atoms from 1,10-phenanthroline (phen) or 2,2′-bipyridine (bipy) and, occasionally, oxygen atoms from coordinated water, ethanol molecules or nitrate ions. The compounds are investigated by visible and infrared spectroscopy and by single crystal X-ray diffraction. Although the reaction scheme involved equimolar amounts of the reactants, compounds with metal-to-benzoate-to-diimine ratios of 1:2:1, 1:1:2 and 1:1:1 are realized, being either neutral or cationic in nature and either mono- or dinuclear. The better coordinating ability of nitrate relative to perchlorate is verified, as well as the subtle role of the <i>para</i>-substituent on the coordination mode of the benzoate and consequently on the overall structure of the compounds formed. |
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| ISSN: | 2304-6740 |