Shiny black, air‐insensitive crystals of the novel title compounds are obtained from appropriate melts of Ru (Rh), Te, TeCl4, and In in the case of [Ru(Te9)](InCl4)2 (evacuated silica tube, 300—320 °C, 7 d).
Respiratory gas analyses are used to explore the influence of increased gravity on the physiology of breathing. Due to the mass, size and intricacy of standard measurement systems, previous studies were limited to a maximum acceleration of + 5 gz (head-to-foot direction). Furthermore, no in situ mainstream measurements of oxygen and carbon dioxide concentration were possible under hypergravity conditions so far. This paper shows a first study which demonstrates a respiratory sensor system developed at the Institute for Aerospace Engineering at TU Dresden. This system is suitable for an in situ measurement of respiratory changes up to + 9 gz (maximum acceleration of jet pilots) and therefore provides a possibility for detailed physiological analyses in future. Three jet pilots were equipped with this system and accelerated under a defined profile up to 7, 8 and + 9 gz. The breathing air flow, oxygen and carbon dioxide concentration were recorded with our miniaturized solid state electrolyte gas sensors, which are also described in this paper. The analysed data show significant changes of the measured respiratory parameters depending on the G-level, the acceleration rate (G-rate of onset [g s−1]) and the examination time.
Black crystals of [Rh(Te6)]Br3 (I), [Rh(Te6)]I3 (II), [Ir(Te6)]Cl3 (III), [Ir(Te6)]Br3 (IV), and [Ir(Te6)]I3 (V) are prepared from stoichiometric mixtures of Rh or Ir, Te, and TeX4 (X: Cl, Br, I; evacuated silica tube, 300—350 °C, 7 d).
An Iridium-Stabilized, Formally Uncharged Te 10 Molecule with 3-Center--4-Electron Bonding. -Black crystals of Ir2Te14Cl14 are prepared in high yield by solid state reaction of a mixture of Ir, Te, and TeCl4 in the molar ratio 1:5.6:2.6 (quartz ampule, 250°C, 7 d). The compound is characterized by single crystal XRD and DFT/B3PW91 quantum chemical calculations on an isolated molecule. It crystallizes in the triclinic space group P1 with Z = 1. The structure consists of a triclinic packing of (Te10)[Ir(TeCl4)(TeCl3)]2 clusters. The central Te10 molecule coordinates two Ir III cations, each of which also binds to two terminal chlorido tellurate(II) ligands. Ir2Te14Cl14 is a diamagnetic semiconductor with a very small band gap of about 0.1 eV. -(GUENTHER, A.; HEISE, M.; WAGNER*, F. R.; RUCK, M.; Angew. Chem., Int. Ed. 50 (2011) 42, 9987-9990, http://dx.
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