Terpyridine-based metallopolymer thin films as active layer in ammonia sensor device

4′-(N-(Propan-1,2-dienyl)pyrrol-2-yl)-2,2′:6′,2″-terpyridine

“…All other signals arising from the terpyridine and the pyrrole parts of the molecule are present. Additionally, the structure of 1 was further confirmed by 13 C NMR, as well as by HR-MS. For instance, the 13 C NMR spectrum features 15 signals due to the symmetry of the molecule, while mass spectra exhibit the molecular ion peak at 337.14466 (calc. for [C22H16N4+H] + : 337.14477).…”

“…All other signals arising from the terpyridine and the pyrrole parts of the molecule are present. Additionally, the structure of 1 was further confirmed by Supplementary Materials 13 C NMR, as well as by HR-MS. For instance, the 13 As pointed out in the above-mentioned literature, the formation of compound 1 is not so "unexpected". Nevertheless, no trace of alkyne 2 was noticed, while N-propargylation of pyrrole and indole derivatives under similar reaction conditions are described in the literature [20,21].…”

“…Supplementary Materials: The following are available online, 1 H, 13 C, 1 H-1 H COSY and 1 H-13 C HSQC NMR, HR-MS spectra of terpyridine 1.…”

“…Although a little less studied, terpyridines that include a pyrrole ring have also been a subject of interest. For example, such terpyridines have been used for the preparation of cytotoxic molecules [11], for application in OLED (organic light emitting diodes) [12] or sensor devices [13] or for the preparation of catalytic materials [14]. Thus, the preparation of terpyridine derivatives that contain a functionalized pyrrole is of interest in the fields of both organic synthesis and material science.…”

A missing member in the family of chalcogenophene-substituted 2,2′:6′,2″-terpyridine: 4′-(tellurophen-2-yl)-2,2′:6′,2″-terpyridine, its Ru(II) complex and its electropolymerization as a thin film

“…At this point, although obtained in a relatively low yield (32%), the compound is sufficiently pure (> 98% by quantitative 1 H NMR [14]) to be used for the preparation of complex 2 without purification. The latter was prepared by reacting ligand 1 with RuCl3 in refluxing ethanol in the presence of N-methylmorpholine and after precipitation in excess aqueous hexafluorophosphate salt (potassium for instance), according to a classical protocol for the preparation of homoleptic bis-terpyridine complexes [6,10,15]. Fig.…”