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The first substituted macrocyclic ligand Py2N4S2 containing four naphthylmethylene pendant-armed groups: Synthesis and photophysical properties
V. García,
A. Aldrey,
C.S. De Castro,
R. Bastida,
A. Macías,
C. Lodeiro,
J.S. Seixas De Melo,
C. Núñez,
Catherine De Castro 
Inorganic Chemistry Communications, Volume: 36, Pages: 22 - 26
Swansea University Author:
Catherine De Castro
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DOI (Published version): 10.1016/j.inoche.2013.07.019
Abstract
The synthesis of a pendant donor emissive macrocyclic ligand Py2N4S2 with up to four naphthylmethylene arms (L) has been achieved. Their derivative solid metal complexes (Co2 +, Ni2 +, Cu2 +, Zn2 +, Cd2 +, Hg2 + and Ag+) have been isolated and characterized. The photophysical properties of the free...
| Published in: | Inorganic Chemistry Communications |
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| ISSN: | 1387-7003 |
| Published: |
2013
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa31932 |
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| Abstract: |
The synthesis of a pendant donor emissive macrocyclic ligand Py2N4S2 with up to four naphthylmethylene arms (L) has been achieved. Their derivative solid metal complexes (Co2 +, Ni2 +, Cu2 +, Zn2 +, Cd2 +, Hg2 + and Ag+) have been isolated and characterized. The photophysical properties of the free ligand L and their complexation behaviour have been investigated in solution. In dichloromethane, the free ligand presents two emission bands which are related to the monomer naphthalene emission and a red-shifted band attributable to ground state dimers (interaction between two naphthalene chromophores), which was further validated from time-resolved data, with bi-exponential decay with absence of dynamic components. UV–Vis spectroscopy has revealed a 2:1 binding stoichiometry for Co2 +, Cu2 +, Zn2 +, Hg2 + and Ag+. |
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| Keywords: |
Macrocycles; Dinuclear complex; Stability constant; Naphthalene; Pendant-arms; Sensor |
| College: |
Faculty of Science and Engineering |
| Start Page: |
22 |
| End Page: |
26 |