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A ternary self-assembling system consisting of two Zn(II)carboxyphenylporphyrins and an aliphatic diamine linker was constructed via hydrogen bonding and Coulombic interactions between the porphyrin carboxylic moieties and the amino groups of the spacer. The properties of the resulting structures, in terms of binding of several aromatic diamine guests are described. The stability and geometry of the final host-guest supramolecular architecture (i.e. cyclic or linear array) can be modulated by the nature of the spacer.

An efficient method for the synthesis of secondary and primary dialkyl α-aminophosphonates under solvent-free conditions by one-pot reaction of aldehydes/ketones, amines/ammonium acetate and trialkyl/diethyl phosphite in the presence of a low catalytic amount of [Cu(3,4-tmtppa)](MeSO₄)₄(0.16 mol%) as a highly stable and reusable catalyst, is described. By this method, aromatic, aliphatic, cyclic and heterocyclic aldehydes, hindered and cage ketones are converted into their corresponding α-aminophosphonates in good to excellent yields.

Four zinc porphyrin molecules have been linked covalently to a central amphiphilic calix[4]arene molecule to form a zinc "calixporph", ZnCP, which displays enhanced sensitivity to dibutylamine compared to both the discrete zinc porphyrin and two-component mixtures of zinc porphyrin with calixarene. Langmuir-Blodgett films (20 monolayers) of ZnCP display UV-visible spectra which are modified upon exposure to dibutylamine in the concentration range 0.09–0.45 ppt (in N₂) with a t₅₀ response time of 8.8 s. The dense packing of the monomeric porphyrin moieties leads to a high absorbance per layer and thus a large sensing signal compared to other LB films capable of amine-detection. This, coupled to the very fast t₅₀ value, leads to a high figure of merit. This verifies the adopted strategy of using a covalently linked calixporph in order to avoid the potential problems of phase separation associated with two-component mixtures. Furthermore, the ZnCP is selectively responsive to the secondary amine, dibutylamine, compared to the primary and tertiary compounds.

Compound (4,4$\prime$ -hex-3-ene-3,4-diyl)bis(4,1-phenylene)bis(oxy)diphthalonitrile 3 was synthesized by the reaction of 4-nitrophthalonitrile 1 and diethylstilbestrol 2 in dry DMF in presence of dry K₂CO₃. New mononuclear phthalocyanines 4-6 were obtained from compound 3 by addition of the corresponding metal salts [Co(OAc)₂ ⋅ 4H₂O, Zn(OAc)₂ ⋅ 2H₂O and Cu(OAc)₂]. The novel compounds were characterized by elemental analysis and FT-IR, UV-vis, ¹H-NMR and MALDI-TOF mass spectroscopy techniques. The effects of four main groups of organic vapors on these novel compounds were studied and discussed. The adsorption kinetics of alkanes ($n$-hexane and $n$-octane), alcohols (methanol and 2-proponal), chlorinated hydrocarbons (dichloromethane and trichloromethane) and amines (diethylamine and triethylamine) on 4-6 were examined using three adsorption kinetic models: the Elovich equation, the pseudo-first-order equations and Ritchie’s equation. Results show that the linear regression analysis with respect to the pseudo-second-order rate equations generates a straight line that best fits the data of adsorption of alcohols and chlorinated hydrocarbons on Pc films. On the other hand, the Elovich equation generates a straight line that best fits the data of adsorption of alkanes and amines.

Iron(III) phthalocyaninate decorated with crown ether substituents, [(15C5)₄PcFe]Cl, efficiently catalyzed the insertion of carbene derived from ethyl diazoacetate to six amines functionalized with thiazole, thiazoline and thiadiazole heterocycles. The reactions were carried out under practical conditions using EDA:amine stoechiometric ratio with 0.05 mol% catalyst loading. Turnover numbers up to 3360 have been achieved. The aminoacid derivatives bearing heterocyclic moieties were obtained under catalytic conditions for the first time with 36–69% yields in the case of single N–H insertion products and up to 77% in the case of double N–H insertion products.

Using ionic liquids (ILs) as electrolytes in developing electrochemical sensors for SO₂ detection is of much interest. We compared the electrochemical behaviors of SO₂ in choline chloride–ethylene glycol-based deep eutectic solvent (ChCl–EG-based DES), 1-(3-hydroxypropyl)-3-methylimidazolium tetrafluoroboride ([C₃OHmim]BF₄), and [C₃OHmim]${\text{BF}}_4+$monoethanolamine (MEA) (6.2:1 in molar ratio). Addition of MEA into [C₃OHmim]BF₄ can significantly increase the SO₂ absorption capacity and enhance the electrochemical response of SO₂. However, as we use ChCl–EG-based DES, the reduction current is 10 times larger than in [C₃OHmim]BF₄ and 4 times larger than in [C₃OHmim]${\text{BF}}_4+$MEA (6.2:1 in molar ratio). And SO₂ gas shows high diffusion coefficient value as in the ChCl–EG-based DES. A good linear relationship between the reduction current and the SO₂ content was obtained in the tested SO₂ gas content range from 200ppm to 1500ppm. Our findings provide new route for DESs as electrolytes for SO₂ sensor designing with high sensitivity.

Compound (4,4′-hex-3-ene-3,4-diyl)bis(4,1-phenylene)bis(oxy)diphthalonitrile 3 was synthesized by the reaction of 4-nitrophthalonitrile 1 and diethylstilbestrol 2 in dry DMF in presence of dry K₂CO₃. New mononuclear phthalocyanines 4–6 were obtained from compound 3 by addition of the corresponding metal salts [Co(OAc)₂ · 4H₂O, Zn(OAc)₂ · 2H₂O and Cu(OAc)₂]. The novel compounds were characterized by elemental analysis and FT-IR, UV-vis, 1H-NMR and MALDI-TOF mass spectroscopy techniques. The effects of four main groups of organic vapors on these novel compounds were studied and discussed. The adsorption kinetics of alkanes (n-hexane and n-octane), alcohols (methanol and 2-proponal), chlorinated hydrocarbons (dichloromethane and trichloromethane) and amines (diethylamine and triethylamine) on 4–6 were examined using three adsorption kinetic models: the Elovich equation, the pseudo-first-order equations and Ritchie’s equation. Results show that the linear regression analysis with respect to the pseudo-second-order rate equations generates a straight line that best fits the data of adsorption of alcohols and chlorinated hydrocarbons on Pc films. On the other hand, the Elovich equation generates a straight line that best fits the data of adsorption of alkanes and amines.

Iron(III) phthalocyaninate decorated with crown ether substituents, [(15C5)₄PcFe]Cl, efficiently catalyzed the insertion of carbene derived from ethyl diazoacetate to six amines functionalized with thiazole, thiazoline and thiadiazole heterocycles. The reactions were carried out under practical conditions using EDA:amine stoechiometric ratio with 0.05 mol% catalyst loading. Turnover numbers up to 3360 have been achieved. The aminoacid derivatives bearing heterocyclic moieties were obtained under catalytic conditions for the first time with 36–69% yields in the case of single N–H insertion products and up to 77% in the case of double N–H insertion products.