Copper phthalocyanines (CuPc) containing alkylthio (-S(CH 2) n CH 3 , n=7 and 15), alkyloxy-(-O(CH 2) n CH 3 , n=7 and 15) and polyoxo (-O(CH 2 CH 2 O) 3 CH 3 and-S(CH 2 CH 2 O) 3 CH 3) substituents were synthesized and investigated to reveal the effects of substituents type (alkylthio, alkyloxy and polyoxo) and the type of the connecting heteroatom (oxygen or sulphur) on the mesogenic properties, films alignment and sensing behaviour. The liquid crystalline properties of these phthalocyanines were investigated by differential scanning calorimetry, polarizing optical microscopy and X-ray diffraction techniques. The structure and morphology of spun thin films of copper phthalocyanine derivatives were studied by the UV-Vis and Raman spectroscopies as well atomic force microscopy. The sensing properties of CuPc films were studied by the measurement of conductivity change upon interaction with ammonia in the range 10-50 ppm. All investigated films of CuPc derivatives display thermotropic columnar mesomorphism. It was shown that the films with polyoxo-(-O(CH 2 CH 2 O) 3 CH 3 and-S(CH 2 CH 2 O) 3 CH 3) substituents as well as with alkylthio-S(CH 2) n CH 3 (n=7) substituents, which are liquid crystalline at room temperature, form ordered films with a random planar alignment of columns. Their films exhibit the better sensor performance with the maximal sensor response for the films of CuPc containing (-S(CH 2 CH 2 O) 3 CH 3) substituents.

Two sets of silver–molybdate complexes with L = XR3 (X = P, As, Sb; R3 = Ph3, Ph2Py) and functionalized pyridine-based ligands have been studied with different techniques.

Hydrothermal reaction of a macrocyclic inorganic POM cavitand Li17(NH4)21H2[P8W48O184] with [Pt­(H2O)2(OH)4] results in coordination of up to six {Pt­(H2O) x (OH)4–x } fragments to the internal surface of the polyoxoanion. The product was isolated as K22(NH4)9H3[{Pt­(OH)3(H2O)}6P8W48O184]·79H2O (1) and characterized by multiple techniques in the solid state (SCXRD, XRPD, XPS, FTIR, and TGA) and in solution (NMR, ESI-MS, and HPLC-ICP-AES). Electrochemical properties were studied both in solution and as components of the paste electrode. The complex shows electrocatalytic activity in water oxidation.

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Reaction of [SbW9O33]9– with [Pt­(H2O)2(OH)4] results in the first example of the mixed addenda Anderson–Evans type PtIV{SbV(OH)2}­WVI 5O22]7– anion, isolated and characterized as K6Na2[Pt­{Sb­(OH)2}­W5O22]­(NO3)0.1(OH)0.9̇11H2O (1).

Correction for ‘Niobium uptake by a [P8W48O184]40−macrocyclic polyanion’ by Alexandra A. Shmakovaet al.,New J. Chem., 2019,43, 9943–9952.

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