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The new perovskite PbVO 3 was synthesized under high-temperature and high-pressure conditions. Its crystal structure (a ) 3.80005(6) Å, c ) 4.6703(1) Å, Z ) 1, S.G. P4mm) contains isolated layers of corner-shared VO 5 pyramids, which are formed instead of octahedra due to a strong tetragonal distortion (c/a ) 1.23). The lead atom is shifted out of the center of the unit cell toward one of two [VO 2 ]-layers due to the influence of the lone pair. This new perovskite exhibits a semiconductor-like F(T) dependence down to 2 K. This behavior can be qualitatively explained by taking into account strong electron correlations in electronic structure calculations.

A sunny outlook: As the first fully heterocyclic circulene, sulflower opens the way to an unprecedented class of compounds that are both organic and inorganic. Sulflower is an oligothiophene as well as a new form of carbon sulfide that resembles a flower (see picture) and was synthesized in a short and effective approach.

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Sonnige Aussichten: Das erste komplett heterocyclische Circulen, „Sulflower“ (siehe Bild), eröffnet eine Klasse von Verbindungen, die sowohl als organisch wie auch anorganisch angesehen werden können. Zu seinem Name kommt das Oligothiophen durch die Ähnlichkeit mit einer Blume. Das neuartige Kohlenstoffsulfid wurde nach einer kurzen und effizienten Route synthetisiert.