In spite of safety measures and significant structural changes in the Danish merchant and fishing fleet, the spectrum of health indicators continues to indicate considerable risk factors in the maritime environment and/or the lifestyle of seafarers and fishermen. Future monitoring of fishermen's and seafarers' health will remain essential for implementing appropriate preventive measures.
The synthesis of a rare example of a calix[2]pyrrole[2]thiophene derivative incorporating two tetrathiafulvalene units is described along with its X-ray crystal structure. Complexation studies between the bis(tetrathiafulvalene)-calix[2]pyrrole[2]thiophene and 7,7,8,8-tetracyano-p-quinodimethane (TCNQ) were carried out in solution using absorption and ESR spectroscopies as well as in the solid state using X-ray crystallography and IR spectroscopy.
A cage molecule incorporating three electron donating monopyrrolotetrathiafulvalene units was synthesised to host electron accepting [60]fullerenes. Formation of a strong 1 : 1 donor-acceptor (D-A) complex C⊂1 was confirmed by solid state X-ray analysis as well as H NMR and absorption spectroscopic analyses of the arising charge-transfer (CT) band (λ = 735 nm, ε ≈ 840 M cm). Inserting Li inside the [60]fullerene increased the binding 28-fold (K = 3.7 × 10 M) and a large bathochromic shift of the CT band to the near infrared (NIR) region (λ = 1104 nm, ε ≈ 4800 M cm) was observed.
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